environmental assessment environmental management plan · environmental. assessment &...

3210 Apsley Street, Terrace, BC, V8G 0J2 | tel 250 635 1494 | fax 250 635 1495 | triton-env.com

Environmental Assessment

&

Environmental Management

Plan

Nass River Bridge Replacement

Highway 37N

Prepared for:

Contact: Kristine Lamble, Environmental Coordinator

BC Ministry of Transportation and Infrastructure 1011 4th Avenue Prince George, B.C. V2L3H9

Prepared by:

Contact: Kevin Doddridge, Project Manager

MOTI Nass River Bridge Replacement Project August 2017

Final EA Report and Environmental Management Plan Page ii

Prepared by Triton Environmental Consultants Ltd.

Revision History and Approvals

Project Name MOTI Nass River Bridge Replacement Project

Project Number 5555.03

Report Title DRAFT Environmental Assessment Report and Environmental

Management Plan – Nass River Bridge Highway 37N

Document # WPT-4725

Report Author(s) Kevin Doddridge, Rachel Caira, Jane Hauser

Date Version Review Type/Change Reviewed/Changed by

October 26, 2016 1 Peer Review Brent Thiessen, R.P.Bio.,

R.P.F.

October 28, 2016 1 Senior Review Codey Latimer, AScT

October 28, 2016 1 Document Review Marilyn Fransen, B.A.

October 28, 2016 Draft

V.1 Issued for Client Review Kristine Lamble (MOTI)

November 14,

2016

Draft

V.2

Edits Completed as per Client

Review Rachel Caira

May 29, 2017 Draft

V.3

Addition of Environmental

Management Plan to EA Report Kevin Doddridge

June 9, 2017 Draft

V.4

Addition of supplemental

sampling data. Matthew Veikle

July 28, 2017 Draft

V.5

Edits Completed as per Client

Review Codey Latimer, AScT

August 31, 2017 Final V.1 Edits Completed as per Client

Review Jane Hauser, B.Sc, M.R.M.


Final EA Report and Environmental Management Plan Page iii


Acknowledgements

Triton would like to acknowledge the assistance provided by technician Valbert

Williams (provided by the Gitanyow Hereditary Chiefs Office) and technician Anthony

Moore (provided by the Nisga’a Lisims Government Lands and Resources Office) while

completing the field assessments on July 26-27, 2016. A third technician, Ryan McLean,

was provided by Tsetsaut Ventures Ltd. (Skii Km Lax Ha) however, he was ultimately

unable to join the crew. Additional crew members, all from Triton, included Kevin

Doddridge, David Burton, Grahame Gielens, and Benjamin Hewitt.


Final EA Report and Environmental Management Plan Page iv


Disclaimer

This report is rendered solely for the use of the Ministry of Transportation and

Infrastructure (MOTI) in connection with the Nass River Bridge Replacement Project, and

no person may rely on it for any other purpose without Triton Environmental Consultants

Ltd.’s (Triton) prior written approval. Should a third party use this report without Triton’s

approval, they may not rely upon it. Triton accepts no responsibility for loss or damages

suffered by any third party as a result of decisions made or actions taken based on this

report.

This report is based on facts and opinions contained within the referenced documents.

We have attempted to identify and consider relevant facts and documents pertaining

to the scope of work, as of the time period during which we conducted this analysis.

However, our opinions may change if new information is available or if information we

have relied on is altered.

We applied accepted professional practices and standards in developing and

interpreting data obtained by our field measurement, sampling, and observation. While

we used accepted professional practices in interpreting data provided by MOTI or third

party sources we did not verify the accuracy of data provided by MOTI or third party

sources.

This report should be considered as a whole and selecting only portions of the report for

reliance may create a misleading view of our opinions.


Final EA Report and Environmental Management Plan Page v


TABLE OF CONTENTS

Acknowledgements ................................................................................................................ iii

Disclaimer ................................................................................................................................. iv

1.0 Introduction ................................................................................................................... 1

1.1.1 Project Description ................................................................................................... 1

2.0 Environmental Assessment ........................................................................................... 2

2.1 Environmental Assessment Boundaries and Study Area ......................................... 2

2.2 Environmental Assessment Methodology ................................................................. 4

2.2.1 Aquatics Assessment ................................................................................................ 4

2.2.2 Vegetation and Ecosystems Assessment .............................................................. 4

2.2.3 Wildlife Habitat Assessment ..................................................................................... 4

2.3 Environmental Assessment Results.............................................................................. 5

2.3.1 Aquatics Assessment ................................................................................................ 5

2.3.2 Vegetation and Ecosystems Assessment ............................................................ 12

2.3.3 Wildlife Habitat Assessment ................................................................................... 15

3.0 Environmental Management Plan ............................................................................. 19

3.1 Introduction ................................................................................................................. 19

3.1.1 Purpose of the EMP ................................................................................................ 19

3.1.2 Reference Documentation ................................................................................... 20

3.2 Roles and Responsibilities .......................................................................................... 20

3.2.1 Owner’s Environmental Representative .............................................................. 21

3.2.2 Contractor ............................................................................................................... 21

3.2.3 Environmental Monitor ........................................................................................... 22

3.3 Regulatory Context .................................................................................................... 25

3.3.1 Environmental Legislation and Regulatory Requirements ................................ 25

3.3.2 Environmental Approvals ...................................................................................... 26

3.3.3 Environmental Best Management Practices ...................................................... 26

3.4 Environmental Settings Summary ............................................................................. 27

3.4.1 Designated Streams and Environmentally Sensitive Areas ............................... 27

3.4.2 Fishery Timing Window ........................................................................................... 28

3.4.3 Wildlife ...................................................................................................................... 28

3.5 Construction Environmental Management Plan Requirements .......................... 29

3.5.1 Detailed Plans ......................................................................................................... 29

4.0 References ................................................................................................................... 38

LIST OF FIGURES

Figure 1. Project location map ................................................................................................... 1

Figure 2. Project overview ........................................................................................................... 3

Figure 3. Aquatics ....................................................................................................................... 11

Figure 4. Vegetation ecology map ......................................................................................... 14

Figure 5. Wildlife habitat assessment observations ................................................................ 18


Final EA Report and Environmental Management Plan Page vi


LIST OF TABLES

Table 1. Vascular plant species observed within the LSA and surrounding area ............. 12

Table 2. Key field observations and features .......................................................................... 17

Table 3. Project Contact Information ...................................................................................... 20

Table 4. Potential Contractor required environmental permits. .......................................... 26

LIST OF APPENDICES

Appendix 1 – Representative Photographs


Final EA Report and Environmental Management Plan Page vii


LIST OF ACRONYMS/ABBREVIATIONS

ACRONYM MEANING

µS/cm micro-Siemens per centimetre – measure of water conductivity

AQP Appropriately Qualified Professional

BMP Best Management Practice

CCME Canadian Council of Ministers of the Environment

CEMP Construction Environmental Management Plan

CSA Canadian Standards Association

CSP Corrugated Steel Pipe

CWD Coarse Woody Debris

CWS Canadian Wildlife Service

D Represents the size of the largest particle on the channel bed that will be

moved at channel forming flow levels

D95 The diameter of the bed material particle that is larger than 95% of the

materials in the stream channel

DFO Department of Fisheries and Oceans

DO Dissolved Oxygen

EA Environmental Assessment

ECC Canada Environment and Climate Change Canada

EF Electrofishing

EM Environmental Monitor

EMP Environmental Management Plan

ESA Environmentally Sensitive Area

ESCP Erosion and Sediment Control Plan

GPS Global Positioning System

IPCBC Invasive Plant Council of British Columbia

LSA Local Study Area

MFLNRO Ministry of Forests, Lands and Natural Resource Operations

mg/L milligrams per Litre

MOE Ministry of Environment

MOTI Ministry of Transportation and Infrastructure

MOU Memorandum of Understanding

MWLAP Ministry of Water, Land, Air and Parks

NFC No Fish Caught

NTU Nephelometric Units (turbidity units)

OSA Overview Study Area

QEP Qualified Environmental Professional

ROW Right of Way

SARA Species at Risk Act

SDS Safety Data Sheets

SS Standard Specifications

UTM Universal Transverse Mercator

WHA Wildlife Habitat Area

V2 Two-wheel Drive


Final EA Report and Environmental Management Plan Page 1


1.0 Introduction

The BC Ministry of Transportation and Infrastructure (MOTI) is proposing to replace the

Nass River bridge (07773) located along Highway 37 at MOTI Landmark Kilometre

Inventory (LKI) Segment 3720 KM 66.29 and UTM 09V 0490415 6209860. The bridge site is

located approximately 14 km south of Meziadin Junction and approximately 3 km north

of Ellsworth Camp mill site in northern BC (Figure 1). The existing bridge was constructed

in 1972 by the BC Government and is a wood-steel structure with a queen under-truss

on concrete footings. It is approximately 393.5 feet long with a main span of 186 feet as

indicated on the placard north of the bridge site.

Triton Environmental Consultants Ltd. (Triton) was retained by MOTI to provide an

Environmental Assessment (EA) Report and Environmental Management Plan (EMP) in

connection with the proposed replacement of the Nass River Bridge (herein referred to

as ‘the Project’).

Figure 1. Project location map

1.1.1 Project Description

MOTI intends to replace the Nass River bridge (No. 07773) structure with a two lane,

steel plate I-girder, clear span bridge, located approximately 12 m upstream (north) of

the existing bridge (Stantec 2017). The highway approach will also require

approximately 2 km of realignment and upgrades to accommodate the new bridge.

As such, the development corridor that is associated with the Project may extend

beyond the existing highway right of way (ROW) (see Figure 2).

N




2.0 Environmental Assessment

The scope of the EA Report is based on a review of the Environmental Constraint

Mapping for Replacement of the Nass River Bridge (McElhanney 2015), which provided

a high-level environmental overview of the bridge site based on results of a desktop

exercise. This exercise included a screening review for all listed wildlife and ecosystems

with the potential to occur within the Project area and included a summary of fish

known to historically occur in the Nass River. As such, the EA Report focuses on the field

confirmation of that overview information and specifically provides the results of the

following:

Vegetation and ecosystems assessment confirming presence/absence of rare

and endangered vascular plants, plant communities, and their boundaries’

extent;

Aquatics assessment confirming species presence/absence for both fish and

amphibians, habitat quality, and baseline surface water quality; and,

Wildlife habitat assessment confirming presence/absence of features such as

dens and nests.

These are the features and considerations which Triton believes have the greatest

potential to affect design and construction of a replacement bridge structure.

2.1 Environmental Assessment Boundaries and Study Area

The study area focused on the Nass River bridge site, specifically with reference to two

distinct spatial boundaries:

Overview Study Area (OSA)

Local Study Area (LSA)

The OSA was determined based on a conceptual development corridor that extends

approximately 200 m on either side of Highway 37 from MOTI LKI Segment 3720 KM 64.38

OLD LOGGING ROAD to approximately 150 m north of LKI Segment 3720 KM 66.81 RD

TO FISH LADDER). The OSA encompassed 111 ha of total area around the bridge site.

The LSA was provided by MOTI as representing the Project footprint which encompasses

16 ha and was used as the boundary for more time-intensive surveys. Report section 3.0

includes information on which assessments corresponded to each spatial boundary.

The study area boundaries are shown in Figure 2.

490000

490000

491000

491000

492000

492000

6209

000

6209

000

6210

000

6210

000

Nass River Bridge EA0 80 160 240 320 40040

Meters

Figure 2 - Project Overview

LegendHighwayRoadsWatercourse

Local Study AreaOverview Study AreaRiver

WaterbodyWetland

File Path:

Basemap Source:Map Datum:

Bing Maps AerialDate:Project No: 5555

Oct 27, 2016

NAD 1983 UTM Zone 9N

N:\ACTIVE\5555_NassRiverBridge\MXD\5555_Fig2_10112016.mxdScale: 1:13,000




2.2 Environmental Assessment Methodology

Field assessments were conducted on July 26 and 27, 2016 by two Qualified

Environmental Professionals (QEPs) and two environmental technicians. A

representative each from Nisga’a Lisims Government and Gitanyow Hereditary Chiefs

were also included in the assessments and provided field support. Fish sampling was

performed by two QEPs on September 30, 2016 subsequent to initial field assessments.

2.2.1 Aquatics Assessment

Field crews traversed the OSA parallel to the highway in search of features such as

drainages, creeks, channels, streams, wetlands, or other features that would indicate

the potential for perennial or seasonal fish or amphibian habitat, or fluid connectivity to

downstream sensitivities. Features were characterized based on select assessment

criteria and standards in the Fish-stream Identification Guidebook (1998) and

Reconnaissance Fish and Fish Habitat Inventory (2008). Fish habitat quality was

categorized following the guidelines outlined in the Fish-stream Crossing Guidebook

(2012) by assessing rearing, spawning, overwintering, and migration potential for fish

species likely to occur in the OSA. Amphibian habitat was also determined based on

observations or signs of individuals likely to be present in the Project area,

presence/absence of lentic features likely to persist through the breeding season, and

availability of cover within or near lentic features. Crews also identified culvert locations

within the OSA as part of the aquatics component. Fish sampling was performed via

electrofishing at Watercourses 1 and 2 in the vicinity of the highway crossings, to

determine presence/absence of fish (see Figure 3). No fish sampling was performed in

the Nass River main stem as historic fish species information was available.

2.2.2 Vegetation and Ecosystems Assessment

Ecosystem assessments were conducted within the LSA to determine presence or

absence of provincially listed ecosystems, and to determine their boundaries’ extent if

present. Vegetation assessments were conducted to confirm the presence or absence

of rare or endangered vascular plants.

Using satellite imagery, the LSA and surrounding area was broken up into 13 polygons

based on putative changes in vegetation and terrain. Sample plots and visual

inspections were conducted in each polygon along meandering transects, and a

running list of observed plants was created for the entire site and screened for rare or

endangered species. At each of the sample plots, the dominant plant species were

used to describe the site association and identify whether listed ecosystems were

present.

2.2.3 Wildlife Habitat Assessment

A wildlife habitat assessment was performed to confirm presence/absence of valued

habitat features and characteristics, with a focus on preferred habitat for the listed

mammal and avian species identified in McElhanney’s 2015 report. Field crews




traversed the OSA parallel to the highway in search of features such as potential dens,

nest sites, and wildlife trees, and to determine overall suitability of habitat for songbirds,

raptors, and mammals, taking into account forest age and type, proximity to features

such as wetlands, streams, cliffs, and rivers, as well as considering levels of existing

disturbance. Specific focus was given to the existing Nass River bridge structure as

concerns had been expressed by others that species at risk may be using the structure

for roosting or nesting.

2.3 Environmental Assessment Results

This section provides a summary of the results of the EA, separated by discipline.

2.3.1 Aquatics Assessment

Three watercourses were identified and assessed within the OSA including two Nass

River tributaries and the Nass River itself. Watercourse and survey information for these

features is presented in tabular format below and also in Figure 3.

2.3.1.1 Fish and Fish Habitat

Watercourse and Survey Information – Watercourse 1

Gazetted Name N/A Location UTM 09V 490090 6209908

Study ID Watercourse 1 Date/Time of Survey July 27, 2016; 14:00

Watershed Code N/A Waterbody Identifier N/A

Access V2 Length Surveyed (m) 150

Crew KD/DB Agency C151 (Triton)

Watershed

Sequence

Watercourse 1, Nass River, Pacific Ocean

Watercourse Characteristics

Watercourse 1 was characterized as an NCD-w, a non-classified drainage exhibiting wetland

characteristics. It was not identified on BC Freshwater Atlas but was included in Figure 3 based

on field observations to show its location. Within the length surveyed, the morphology of the

drainage was highly variable, and no continuous scour or alluvium was observed. Upstream of

the highway crossing, the feature was an impounded wetland with substrates consisting

predominantly of fines. Instream and over-stream vegetation was abundant and the coarse

woody debris observed throughout this area was functional. Gradients were less than 1%

upstream of the highway and depths in the wetland were greater than 0.5 m in some areas.

Water levels within the impoundment area upstream of the highway crossing were observed to

historically fluctuate as fringe areas were observed to be dewatered at time of survey. The

600 mm CSP identified at the crossing is likely able to convey water under the highway at higher

flows. The structure was not conveying flows at time of survey given low wetland water levels.

The damaged and partially buried culvert inlet likely impedes flow. The culvert outlet drains into

a smaller wetland complex which was dry at time of survey. Gradients increased southward to

5% for approximately 40 m until the dry drainage became narrowly channelized with numerous

instantaneous drops greater than 2 m in height, before leading over a near vertical falls/cliff into

the Nass River approximately 20 m below.

Avg. Channel Width N/A Flow Stage Low

Avg. Wetted Width N/A Bed Material (Dom.) Fines

Avg. Gradient (%) 2.5 Bed Material (Sub.) Cobble

Residual Pool Depth None D95 (cm) N/A




LWD Functionality Good D (cm) N/A

LWD Distribution Frequent Avg. Bankfull Depth (m) N/A

Total Cover Good cover for amphibians Primary Cover Type CWD, instream

vegetation

Left Bank N/A Right Bank N/A

Morphology Variable as stated above

Stream

Classification

NCD-w

Water Quality

Dissolved Oxygen 6.37 mg/L Conductivity 53 µS/cm

Temperature 16.8°C Turbidity Low

pH 5.17 Comment Sampled at site WQ1

Fish Sampling

Sample Method EF Effort 440s

Species Captured NFC Length Sampled 50 m

Comments Sampling occurred upstream of the highway crossing within wetted areas;

no fish were captured. Temperatures were relatively high and DO levels

were low; unfavourable conditions for rearing salmonids. No connectivity

for fish exists between the crossing location and the Nass River.


Species Captured NFC Length Sampled 100 m

Comments Sampling occurred upstream of the highway crossing within wetted areas;

no fish were captured.

Sample Method MT Effort 364 hours

Species Captured NFC Length Sampled na

Comments 11 traps set upstream of road and 2 traps were set downstream of the

road. Traps were baited and let to soak overnight, no fish were captured

and no amphibians were captured. Fish-stream Crossing Guidebook Rank – Habitat at Crossing Critical/Important/Marginal None

Spawning Habitat None – no fish access from Nass River

Overwintering

Habitat

None – no fish access from Nass River

Rearing Habitat None – no fish access

Migration Habitat None – gradients and falls downstream of the highway crossing preclude

fish access within the OSA

Additional

Comments

N/A

Watercourse and Survey Information – Watercourse 2

Gazetted Name N/A Location UTM 09V 0491752 6208804

Study ID Watercourse 2 Date/Time of

Survey

July 27, 2016; 09:45 am

Watershed Code 500-462000 Waterbody

Identifier

00000NASR

Access V2 Length Surveyed

(m)

250


Watershed Watercourse 2, Nass River, Pacific Ocean




Sequence


Watercourse 2 was characterized as an S2 stream, though only two channel width

measurements were obtained. At the crossing, an un-embedded 1,800 mm CSP at 5% gradient

conveys flow under the highway into a 1.4 m deep plunge pool downstream. The CSP outlet was

perched by 0.45 m at time of survey which presents a seasonal obstruction to upstream fish

migration, particularly for juveniles. There was evidence of turbulent flows at the culvert outlet

that cause significant scouring downstream. The inlet has been previously rip-rapped and road

surface coverage is approximately 5 m higher than the culvert inlet.

Approximately 30 m upstream from the crossing, the stream is confined in a ravine and

substrates were cobble-dominated with boulders throughout. Small patches of gravel were

identified as well, but no significant accumulations were observed that would support spawning

by salmonids. Coarse woody debris was abundant and evenly distributed in the channel,

causing entrainment of substrate and small < 0.30 m falls features which obstruct upstream

migration at low flow levels. Minor undercutting and abundant overstream and instream

vegetation (moss) were observed contributing to cover, however low flows at time of survey and

lack of depth limited cover for adult fish in this area. Stream is 3% gradient upstream from the

crossing. Mean depth was 15 cm, residual pool depth was 0.35 m, and total pool depth was

0.40 m. At approximately 150 m upstream from the crossing, the channel became less defined

as bank scour and avulsions in this location contributed to channel splitting and shallow depths

(< 0.1 m deep) and pool habitat became solely fast riffle habitat. Although the stream in this

location had an abundance of cover and instream features for fish it was limited by depth and

flow.

Approximately 180 m upstream from the crossing, the stream channel diminishes and becomes

the wetland complex identified by McElhanney (2015) as a Wildlife Habitat Area. This area is

likely excellent amphibian breeding habitat as depths and cover was significant, though none

were observed. Riparian areas had plenty of woody debris and moss cover for terrestrial forms.

Fish rearing and overwintering habitat is likely limited by water quality in this area, though depths

and cover were suitable, particularly for non-salmonid species. Triton did not survey the entire

Wildlife Habitat Area identified by McElhanney (2015) as it was largely outside of the OSA.

Downstream from the crossing, the stream becomes a large wetland complex maintained by

beaver activity, evidenced by multiple dams and chewed stumps. It was greater than 1 m deep

in central areas at time of survey and capable of supporting fish and amphibians. One

Peamouth Chub (PCC) was captured downstream of the crossing at the culvert plunge pool.

Avg. Channel Width 6.0 m Flow Stage Moderate

Avg. Wetted Width 2.5 m Bed Material

(Dom.)

Cobble

Avg. Gradient (%) 1.5 Bed Material (Sub.) Boulder

Residual Pool Depth 0.35 m D95 (cm) 45

LWD Functionality Excellent D (cm) 25

LWD Distribution Abundant Avg. Bankfull

Depth (m)

0.8

Total Cover Low upstream of the

crossing, and high

downstream of crossing.

Primary Cover

Type

CWD, boulder,

overhanging and instream

vegetation, deep pool

downstream of crossing

Left Bank Sloped, boulder and

alluvial, mixed, mature

Right Bank Sloped, boulder and

alluvial, mixed, mature




forest forest

Morphology Sinuous, partially coupled and occasionally confined upstream from the

crossing. Downstream from the crossing the stream becomes a wetland

complex.

Stream

Classification

S2

Water Quality

Dissolved Oxygen 9.22 mg/L Conductivity 41 µS/cm

Temperature 12°C Turbidity Clear

pH 6.75 Comment Sampled ~150 m upstream

from the highway crossing

at WQ 3

Fish Sampling


Species Captured PCC Length Sampled 100 m

Comments Sampling occurred upstream and downstream of the highway crossing. No

fish were captured upstream of the crossing and one PCC was captured

below the crossing in the culvert plunge pool. Fish-stream Crossing Guidebook Rank – Habitat at Crossing Critical/Important/Marginal Important

Spawning Habitat None – lacks significant accumulations of gravels suitable for spawning and

drainage exhibits turbulent flows

Overwintering

Habitat

Low – immediately upstream of the crossing given shallow residual pool

depths, moderate potential for overwintering in the wetland complex

located 180 m upstream from the crossing

High – downstream of the crossing in the deep wetland complex with

connection to the Nass River

Rearing Habitat Moderate – While upstream of the crossing was limited by shallow depths,

downstream of the crossing was a large stagnant wetland which would be

productive for juvenile rearing

Migration Habitat Moderate – seasonally limited by flows and obstructed by perched culvert

outlet; however, no permanent barriers to migration were observed during

the assessment

Additional

Comments

Historical fish use documented upstream from the crossing therefore the

crossing represents a corridor between upstream habitats and the Nass

River




Watercourse and Survey Information – Nass River

Gazetted Name Nass River Location UTM 09V 490415 6209860

Local Name K'alii Aksim Lisims Date/Time of Survey July 27, 2016; 0700 am

Watershed Code 500-000000 Waterbody Identifier 00000LNAR

Access V2 Length Surveyed (m) 50


Watershed

Sequence

Nass River, Pacific Ocean


The Nass River is a 400 km long S1 river that flows from the Coast Mountains to the Pacific Ocean

at Gingolx.

Avg. Channel Width 100 m (aerial photo

estimate)

Flow Stage Moderate

Avg. Wetted Width 80 m (aerial photo

estimate)

Bed Material (Dom.) N/A

Avg. Gradient (%) <1% Bed Material (Sub.) N/A

Residual Pool Depth N/A D95 (cm) N/A

LWD Functionality Low D (cm) N/A

LWD Distribution Few Avg. Bankfull Depth (m) N/A

Total Cover High Primary Cover Type Deep pool

Left Bank Vertical bedrock, mixed

mature forest

Right Bank Vertical bedrock,

mixed mature forest

Morphology Large entrenched, coupled channel.

Stream

Classification

S1

Water Quality

Dissolved Oxygen 12.69 mg/L Conductivity 130.1 µS/cm

Temperature 9.1°C Turbidity Clear

pH 7.13 Comment Taken upstream of the

crossing at WQ2

Fish Sampling

Sample Method Not sampled Effort N/A

Species Captured N/A Length Sampled N/A

Comments N/A Fish-stream Crossing Guidebook Rank – Habitat at Crossing Critical/Important/Marginal Critical

Spawning Habitat Unknown – Substrates and bed material were not assessed at the crossing

site.

Overwintering

Habitat

High – large perennial channel

Rearing Habitat High – large perennial channel

Migration Habitat High – large perennial channel

Additional

Comments

The Nass River is an important fisheries corridor and is known to support

many fish species of recreational, commercial and aboriginal importance.

2.3.1.2 Amphibians

A number of areas were identified to be of high value to amphibians, particularly

western toad due to the presence of suitable habitat. Those areas are highlighted in

yellow in Figure 3. While amphibians were not observed during the assessment, the

potential is high for western toad to occur which is a Blue-listed species of concern




identified by McElhanney (2015) to be present within the OSA. Columbia spotted frog

(Rana luteiventris), wood frog (Lithobates sylvaticus), northwestern salamander

(Ambystoma gracile), western long-toed salamander (Ambystoma macrodactylum),

and roughskin newt (Taricha granulosa) also have the potential to occur within the OSA

(E-Fauna BC 2016). These species generally rely on a variety of aquatic habitats to carry

out their life histories, particularly for breeding. Timing of the survey was such that

amphibian species were likely to be present in their terrestrial phases. Terrestrial phases

are more difficult to locate as individuals are inconspicuous and usually most active

during low-light conditions.

2.3.1.3 Additional Features

Two culverts were identified (both 600 mm CSPs) south of the bridge at UTM 09V 490900

6209410 and 09V 490808 6209658 but were not assessed further as they were not fish

streams and appeared to be installed for drainage. Numerous other small diameter

corrugated plastic pipes had been installed in the road prism for drainage on the hill

immediately to the south of the bridge.

490000

490000

491000

491000

492000

492000

6209

000

6209

000

6210

000

6210

000


Meters

Figure 3 - Aquatics

LegendCulvertCapturedFISS Data PointHistorical Data PointWater Quality Site

Watercourse CrossingHighwayRoadsWatercourseHigh Value AmphibianHabitat

Local Study AreaRiverWaterbodyWetland

File Path:



Oct 27, 2016


N:\ACTIVE\5555_NassRiverBridge\MXD\5555_Fig3_10272016.mxdScale: 1:13,000BT

CCCCGCCTCHCMCOCSU

DVLLSUMWPKPCCRBRSC

SKSTTSB

Bull TroutSculpinsSlimy SculpinCoastal Cutthroat TroutChinook SalmonChum SalmonCoho SalmonLargescale Sucker

Dolly VardenLampreysLongnose SuckerMountain WhitefishPeamouth ChubPink SalmonRainbow TroutRedside Shiner

Sockeye SalmonSteelheadThreespine Stickleback

Fish Code Common Name Fish Code Common Name Fish Code Common NameFISH SPECIES




2.3.2 Vegetation and Ecosystems Assessment

During the field surveys, 93 individual vascular plant species were observed within the

survey area (see Table 1). No at-risk plants, including the Blue-listed plant species

described by McElhanney (2015) were identified within the survey area.

A small patch (approximately 25 m by 25 m) of the Blue-listed ‘black cottonwood –

subalpine fir/devil’s club’, site series Fm03 ecosystem was identified within the survey

area at UTM 09V 490806 6209275. It is located between the Nass River and Highway 37,

approximately 700 m southeast of the bridge and approximately 200 m west of the

highway (see Figure 4). This ecosystem is located far enough away from the bridge that

it is unlikely to be affected by any potential construction.

Table 1. Vascular plant species observed within the LSA and surrounding area

Scientific Name Common Name Abies lasiocarpa subalpine fire Acer glabrum Douglas maple Achillea millefolium yarrow Agropyron sp. wheatgrass Alnus crispa ssp. sinuata sitka alder Amelanchier alnifolia saskatoon Anaphalis margaritacea pearly everlasting Aralia nudicaulis wild sarsaparilla Aruncus dioicus goat's beard Athyrium filix-femina lady fern Betula papyrifera paper birch Carex macloviata thick-headed sedge Carex rostrata beaked sedge Castilleja miniata common red paintbrush Centaurea maculosa spotted knapweed Chimaphila umbellata prince's-pine Cicuta douglasii Douglas' water-hemlock Claytonia sibirica Siberian miner's-lettuce Clintonia uniflora queen's cup Cornus canadensis bunchberry Cornus stolonifera red-osier dogwood Dactylis glomerata orchard grass Dryopteris expansa spiny wood fern Epilobium angustifolium fireweed Equisetum arvense common horsetail Erigeron sp. daisy/fleabane Frageria vesca wood strawberry Galium aparine cleavers Geum macrophyllum large-leaved avens Goodyera repens dwarf rattlesnake-plantain Gymnocarpium dryopteris oak fern Hieracium caespitosum meadow hawkweed Hieracium laevigatum smooth hawkweed Hylocomium splendens step moss Juncus ensifolius dagger-leaved rush Leucanthemum vulgare oxeye daisy Linnea borealis twinflower Lycopodium annotinum stiff clubmoss




Scientific Name Common Name Lycopodium

complanatum

ground-cedar Lycopodium

dendroideum

ground-pine Lysichiton americanum skunk cabbage Matricaria discoidea pineapple weed Medicago lupulina black medic Melilotus alba white sweet-clover Mentha arvensis wild mint Menziesia ferruginea false azalea Nuphar polysepalum yellow pond-lily Oplopanax horridus devil's club Orthilia secunda one-sided wintergreen Ozmorhiza chilensis mountain sweet-cicely Paxistima mysinites false box Phalaris arundinacea reed canary grass Phleum pratense timothy Picea engelmannii x

glauca

hybrid white spruce Pinus contorta var. latifolia lodgepole pine Plantago macrocarpa Alaska plantain Platanthera dilatata white big-orchid Populus tremuloides trembling aspen Populus trichocarpa ssp.

trichocarpa

black cottonwood Potamogeton sp. pondweed Pteridium aquilinum bracken fern Pyrola asarifolia pink wintergreen Ranunculus occidentalis western buttercup Ribes glandulosum skunk currant Ribes lacustre black gooseberry Rosa nutkana Nootka rose Rubus parviflorus thimbleberry Rubus pedatus five-leaved bramble Rubus spectabilis salmonberry Salix sp. willow Sambucus racemosa red elderberry Shepherdia canadensis soopolallie Smilacina racemosa false Solomon's-seal Sorbus scopulina western mountain-ash Sparangium sp. bur-reed Spiraea douglasii ssp.

menziesii

pink spirea Streptopus amplexifolius clasping twistedstalk Streptopus roseus rosy twistedstalk Symphoricarpos albus common snowberry Taraxacum officinale common dandelion Thalictrum occidentale western meadow-rue Tiarella trifoliata three-leaved foamflower Trifolium aureum golden clover Trifolium pratense red clover Tsuga heterophylla western hemlock Urtica dioica stinging nettle Vaccinium

membranaceum

black huckleberry Vaccinium ovalifolium oval-leaved blueberry Veratrum viride indian hellebore Viburnum edule highbush-cranberry Vicia americana American vetch Viola adunca early blue violet Viola palustris marsh violet

Na

s sR

i ve

r

490000

490000

490500

490500

491000

491000

6209

500

6209

500

6210

000

6210

000


Meters

Figure 4 - Vegetation Ecology Map

LegendBlack Cottonwood-Subalpiine Fir/Devil'sClub (Blue-listed ecosystem)Local Study AreaVegetation Survey

File Path:


OrthophotoDate:Project No: 5555

Aug 31, 2017






2.3.3 Wildlife Habitat Assessment

A variety of ecosystems were observed within the OSA including zonal upland habitat,

cliff habitat, wetland/swamp habitat, riparian habitat, and disturbed areas, providing

preferred habitat for the mammal and avian species identified in McElhanney (2015) to

be of concern which included:

Grizzly bear (Ursus arctos),

wolverine, luscus subspecies (Gulo luscus),

fisher (Pekania pennanti),

little brown myotis (Myotis lucifugus),

moose (Alces americanus),

great blue heron, fannini subspecies (Ardea herodias fannini),

northern goshawk (Accipiter gentilis), and,

barn swallow (Hirundo rustica).

2.3.3.1 Mammal Species

A number of mapped Grizzly bear Wildlife Habitat Areas (WHAs) exist in proximity to the

Project area, with the southern portion of one WHA overlapping with the LSA. However,

upon review of the spatial data for this particular WHA, and provided Project designs

do not change, it is not anticipated clearing and grubbing will occur within the WHA

polygon. Furthermore, the small portion of the mapped WHA adjacent to the Project is

a steep, forested cliff area with no streams or otherwise unique features or attributes

that would be considered high value habitat for Grizzly bears. Access to the Nass River

mainstem is limited due to the steep, and it is expected that Grizzly bear would likely

prefer streams and tributaries where food supply is more readily accessible during

seasonal periods for salmon foraging. Therefore, provided standard mitigation measures

for construction waste management and site housekeeping are implemented, it is not

anticipated that Grizzly bear will be affected by proposed construction activities.

The zonal upland habitats observed within the OSA contained a variety of understorey

vegetation including berry-producing shrubs such as high-bush cranberry, black

huckleberry, oval-leaved blueberry, and Saskatoon berry which are valued by Grizzly

bear during the summer months. The proximity of these berry patches to the Nass River,

which also provides a seasonal food source (salmonids) for grizzly bear, likely enhances

habitat capability in this area. However the river morphology within the OSA is

considered to be within an entrenched and confined channel with no side- or off-

channels in which salmon could easily and readily be obtained as a food source.

Therefore, while the river and adjacent riparian areas provides habitat for Grizzly bear, it

would be somewhat limited considering the morphology of the river as compared to

other adjacent habitats in the Nass River valley.

Moose utilize a broad range of boreal, mountainous, and coastal habitats to carry out

their life histories including riparian, wetland/swamp, and upland habitats, as well as

disturbance areas. Those habitats were identified within the OSA. Browse species such

as red-osier dogwood, willows, and alder were observed in moderate to high stem

densities within riparian, upland areas, and disturbed areas, as well as aquatic




vegetation species in the wetland areas which are considered preferred food sources

for moose. Moose tracks were observed within the OSA in various locations during the

assessment.

Wolverine and fisher both have the potential to be present within the upland and

riparian habitats observed within the OSA as these areas exhibited significant

understorey complexity, particularly in vegetation polygons 8 and 12 where large

cottonwood trees and downed timber were observed in proximity to riverine areas.

Potential roosting sites for little brown myotis were observed within tree cavities in the

OSA; however, no individuals were observed. The cliff habitat in the vicinity of the

bridge site was assessed during early morning conditions to determine whether these

bats could be observed entering any crevices or cracks in the rock, and none were

observed. The bridge superstructure was also closely examined using binoculars and

spotting scopes to determine whether roosting was occurring, and no individuals were

observed. It is not likely that large hibernacula are present within the OSA or adjacent

areas.

While bear scat, moose tracks, potential den sites for mustelids, and potential roosting

sites for little brown myotis were observed within the OSA, these ecosystems do not

provide habitat that is proportionally more important than adjacent areas. The

proximity of the site to Highway 37 also likely limits the importance of the OSA to

mammal species.

2.3.3.2 Avian Species

Cliff ecosystems and adjacent riverine areas within the OSA likely provide foraging

habitat for avian biota such as songbirds, waterfowl, raptors, and wading birds, as well

as security cover during movements and migrations. Wetland swamp and riparian

habitats within the OSA likely provide breeding and foraging habitat for songbird and

waterfowl species with affinity for aquatic environments. Several bird species were

observed during the assessment including dark-eyed junco (Junco hyemalis), American

robin (Turdus migratorius), Pacific wren (Troglodytes pacificus), common merganser

(Mergus merganser), and bald eagle (Haliaeetus leucocephalus). One songbird nest

was observed at UTM 09V 0490371 6209895 but was deemed inactive as no chicks or

eggs were observed in the nest and debris had accumulated with no new material

present.

No listed species including goshawk, great blue heron, or barn swallow were observed

during the assessment. The entire bridge structure could be effectively viewed from

multiple vantage points, and while abundant roosting habitat was observed under the

bridge for various species, the bridge shakes significantly when heavy loaded transport

trucks cross, likely acting as a deterrent to roosting. As barn swallows are highly

gregarious, colonies would be obvious if present, but were not observed in the field.

Habitats dominated by large mature deciduous and coniferous trees, particularly those

found in vegetation polygons 1, 2, 7, 8, and 12, would provide available nesting habitat




for raptors and great blue heron; however no raptor nests were observed during the

assessment.

2.3.3.3 Key Observations/Features

Table 2 presents a summary of habitat features and observations made during the field

assessment. The location of these features has been mapped in Figure 5.

Table 2. Key field observations and features

ID Location UTM Comments

WT1 09V 0490157 6209931 Wildlife tree in advanced stage of decay

WT2 09V 0490595 6209662 Bat roosting potential in balsam poplar tree

Nest1 09V 0490371 6209895 Inactive songbird nest: debris in nest, no new material in nest,

located approximately 3 m in hemlock tree on steep slope;

CMT1 09V 0490229 6209935 Culturally modified tree identified and flagged previously by

others.

Den1 09V 0490316 6209948 Tree well, potential den site. No hair found, not recently used.

Den2 09V 0490557 6209724 Potential mustelid den.

Den3 09V 0490617 6209664 Complex of small shrew sized burrows found throughout area.

Den4 09V 0491027 6209335 Small burrow under decaying log (~15 cm in diameter); area

contained numerous small shrew sized burrows.

Sign1 09V 0491044 6209341 Moose tracks observed



Sign4 09V 0490781 6209335 Bear scat observed, evidence of bear digging in rotten snag.

490000

490000

491000

491000

492000

492000

6209

000

6209

000

6210

000

6210

000


Meters

Figure 5 - Wildlife HabitatAssessment Observations

LegendWildlife HabitatPointHighwayRoads

WatercourseLocal Study AreaOverview StudyArea

RiverWaterbodyWetland

File Path:



Oct 27, 2016






3.0 Environmental Management Plan

3.1 Introduction

As a component of the preliminary environmental investigation for the Project, Triton

has included this EMP, as described within the following sections.

3.1.1 Purpose of the EMP

The EMP has been developed for MOTI to provide guidance and recommendations for

achieving environmental stewardship and compliance during the construction of the

Project, building upon the MOTI 2016 Standard Specifications (SS) for Highway

Construction, specifically Section 165 Protection of the Environment (MOTI SS Section

165).

The EMP is the primary reference document for general environmental protection

measures, and was developed in consideration of the Gitanyow Huwilp Recognition

and Reconciliation Agreement between the Gitanyow Nation and the Province of

British Columbia. However, it is supplemental to the environmental provisions and

requirements stipulated in the terms and conditions of relevant permits, licenses,

specifications and approvals as they have been or will be acquired. This EMP should be

considered a living document and is subject to change and revision reflective of

discoveries made and if additional information or requirements become available

relevant to the environmental scope of work.

It is expected that the successful construction Contractor will prepare a Construction

Environmental Management Plan (CEMP) which will provide detailed site- and activity-

specific work procedures, environmental controls and mitigation measures, and will be

signed off as their commitment to undertake and monitor work in a manner which

minimizes impacts to Designated Streams and Environmentally Sensitive Areas (ESAs).

The Contractor’s CEMP may use this EMP as a reference and may expand on general

recommendations provided herein. Since CEMPs are dynamic documents, it is

expected that revisions/addendums by the Contractor may be required as

construction progresses or as revisions are made to this EMP. Specific information on

CEMP requirements can be found in Section 3.5 of this document.

This EMP is specifically intended to:

Describe proposed construction activities as they relate to interaction with

environmental resources and sensitivities;

Clearly outline roles and responsibilities of all parties involved in construction;

Identify Designated Streams and Environmentally Sensitive Areas (ESAs);

Provide regulatory context with respect to proposed activities with potential to

interact with environmental sensitivities, including an overview of industry

standards and Best Management Practices (BMPs) including Fishery Timing

Windows, and Environmental Approvals; and,




Prescribe components to be addressed within the Contractor’s CEMP, including

specific detailed plans and environmental procedures required.

3.1.2 Reference Documentation

This EMP was prepared utilizing the following documents:

‘Draft Environmental Assessment Report, Nass River Bridge – Highway 37N’.

Prepared by Triton Environmental Consultants Ltd. for MOTI, November 2016.

‘Standard Specifications for Highway Construction, Volumes 1 and 2’. Ministry of

Transportation and Infrastructure, July 2016.

‘Archaeological Impact Assessment of the Ministry of Transportation and

Infrastructure's Proposed Nass River Bridge Replacement and Approaches

Project’. Golder Associates, July 2016.

‘Environmental Constraint Mapping for Replacement of the Nass River Bridge’.

McElhanney Consulting Services Ltd., October 2015.

‘100% Draft Final, Bridge Concept Design Report, Project No. 37195-0001,

Highway 37 – Nass River Bridge No. 07773 Replacement & Approaches’. Stantec

Consulting Ltd., January 2017.

‘Gitanyow Huwilp Recognition and Reconciliation Agreement, Part 2: Gitanyow

Lax’yip Land Use Plan’. Gitanyow Nation and the Province of British Columbia,

March 2012.

3.2 Roles and Responsibilities

All parties involved in construction have the responsibility to ensure that Project design,

construction work, and related operations are conducted in a manner which minimizes

disturbance or destruction of environmental resources; and are in strict compliance

with federal, provincial, regional and municipal legislation, regulations, permits,

approvals, authorizations, and guidelines, including the protocols listed in this EMP and

the Contractor’s CEMP. A Project contact list is presented in Table 4 below.

Table 3. Project Contact Information

Role Organization Personnel Contact

Owner

Ministry of

Transportation

and

Infrastructure

Reid Drummond,

Project Manager

Tel: (250) 852-5907

Cell: (250) 299-1494 Email: [email protected]

Kristine Lamble,

Environmental

Coordinator

Tel: (250) 5654190


Site Representative TBD




Owner’s

Environmental

Representative

Triton

Environmental

Consultants Ltd.

Kevin Doddridge,

Project Manager

Tel: (250) 635-1494


Contractor TBD TBD TBD

Environmental

Monitor TBD TBD TBD

3.2.1 Owner’s Environmental Representative

An Appropriately Qualified Professional (AQP) may be assigned at the discretion of the

Owner to act as the Owner’s Environmental Representative. Responsibilities will include,

but are not limited to:

Assisting the Owner in reviewing the Contractor’s required CEMP to ensure that it

meets the requirements of this EMP and other regulatory requirements;

Providing advice, as requested, to the Contractor and their EM in regards to

planning and scheduling construction activities;

Assisting the Owner in reviewing all environmental monitoring reports once

construction commences and upon Project completion;

Assisting the Owner with liaising with stakeholders and concerned parties to

notify them of upcoming construction activities;

The acquisition of Environmental Approvals as required; and,

Conducting site visits bi-weekly, or as needed during instream works and/or works

involving Designated Streams and/or Environmentally Sensitive Areas.

3.2.2 Contractor

The successful construction Contractor (to be determined) shall be responsible for the

following, as it pertains to environmental management:

Hiring of an Appropriately Qualified Professional (AQP) to act as the

Environmental Monitor (EM) for the Project (see MOTI SS 165.01.02 and 165.02).

Planning and scheduling construction activities, in connection with advice from

the EM and the Owner’s Environmental Representative, to ensure the avoidance

or absolute minimization of environmental impacts. The Contractor should be

able to identify and anticipate issues that may result from changing

environmental conditions (i.e., stream flow levels) which may result in adverse

effects.

Development of a CEMP which describes plans and procedures for site-specific

environmental protection in the context of an informed construction approach

and methodology. The CEMP will include relevant provisions as described in

Section 3.5 of this EMP, as well as all requirements and stipulations included in the




terms and conditions of relevant permits, licenses, and approvals, and will be in

compliance with the MOTI SS (see section 165.01.01 and 165.02.02).

The Contractor performing the work shall arrange a pre-work meeting (and any

other lead correspondence) with the EM and any subcontractors to ensure all

parties involved in construction understand the environmental requirements and

commitments of the Project.

The Contractor will be responsible for the actions of its employees and

subcontractors, including any contravention of these EMP specifications,

Contractor’s CEMP, and applicable legislation. As such, the Contractor is

responsible for ensuring that environmental protection measures are instituted

throughout all construction areas.

Provide adequate training to staff on environmental issues and furnish equipment

and supplies to administer their CEMP to the satisfaction of the Owner;

Contractors will notify the EM immediately upon discovery of any hazardous

conditions, property, or equipment within or immediately adjacent to the Project

area. However, it will be the Contractor’s responsibility to take all necessary

precautions against injury to the environment and to persons or damage to

property from such hazards until corrected by the responsible party.

The Contractor shall be required to modify or halt any aspect of construction or

maintenance that the Owner, the EM, and/or regulatory agencies determine

poses or have the potential to pose an environmental concern.

The acquisition of permits, licenses, and authorizations as required, as per

Sections 3.3.2 of this EMP.

3.2.3 Environmental Monitor

The EM shall be an AQP as described in the MOTI SS Section 165.01.02(a). The

Contractor is responsible for retaining an EM for the Project.

3.2.3.1 Experience

The EM should be suitably experienced, at minimum, in the following:

Environmental legislation, regulations, guidelines, and environmental agency

review and assessment processes;

Industry standards and best management practices (BMPs) for construction

projects;

Preparation and implementation of CEMPs and environmental procedures

related to construction in Designated Streams and ESAs;

Preparation, implementation and monitoring of erosion and sediment control

plans, structures, and devices;

Spill response and effects monitoring;

Fish and amphibian survey and salvage techniques;




Identification of rare plant species, rare plant communities, and invasive plant

species;

Clearing and grubbing activities and associated mitigation (i.e., pre-clearing bird

nest surveys and raptor nest surveys); and,

Site reclamation.

3.2.3.2 Role

The EM shall be retained by the Contractor and their role will be clearly defined in the

Contractor’s CEMP as supported by the MOTI SS Section 165.02. Generally, the EM

represents the interests of the Project on all environmentally related matters. The EM will

be required to be present on the Project site for certain construction activities, as

follows:

All activities involving fuel handling or transportation;

All activities involving handling or transportation of hazardous materials;

Vegetation clearing and grubbing (including riparian vegetation);

Debris removal;

Culvert removal, maintenance, and installation;

Riprap and/or rock installation;

Instream works, including installation and deactivation of the stream isolation;

and,

All construction activities occurring in or adjacent to delineated environmentally

sensitive areas, or outside of the Project boundary/footprint.

These activities listed above pose a higher risk of having adverse effects on the

environment, have associated mitigation measures that the EM is responsible for, or

involve instream works and/or other environmentally sensitive areas where full-time

monitoring is required.

3.2.3.3 Responsibilities

The EM could be responsible for the following activities:

Communicating requirements of the EMP to the Contractor throughout Project

scoping, design, and during site work to ensure all construction work activities are

planned, developed, and implemented to conform to applicable regulations,

guidelines, and BMPs, including the specifications within this EMP and the

Contractor’s CEMP;

Distributing the EMP and CEMP as necessary and maintaining current and

available copies on-site at all times, including copies of applicable

Environmental Approvals;

Attendance at the work site throughout the duration of the Project to provide

representation on matters related to environmental management, including




being present at key meetings when environmental protection measures are

discussed;

Continual evaluation of Project activities for adherence to the EMP and CEMP,

and providing adaptive recommendations if conditions change or unforeseen

circumstances occur;

Issuance of “Stop Work Order” if specific activities result in non-conformance with

the EMP, Project-specific environmental commitments, or applicable laws and

regulations;

Assisting with environmental emergency response including follow-up, and the

completion and submission of incident reports as required;

Liaising with agencies, on behalf on the Contractor, in the event of an

environmental incident or the development of unforeseen site conditions with

the potential to result in adverse impacts;

Conducting regular inventories of spill response kits, and perform site and

equipment inspections;

Conducting presence/absence surveys of rare plant species, rare plant

communities, and invasive plant species in any areas where clearing is to occur

outside of the Project footprint;

Installing and decommissioning of stream isolation measures, as required;

Installing and decommissioning of amphibian fencing, as required;

Performing fish and/or amphibian salvage associated with instream works;

Performing pre-clearing bird nest surveys associated with clearing during

breeding bird window;

Conducting in-situ water quality monitoring;

Overseeing site cleanup and restoration activities; and,

Preparation of environmental reporting deliverables, to include:

o Weekly environmental monitoring reports, with site representative

photographs. These reports will cover a reporting period of each

calendar week (i.e., Sunday – Saturday), and will be submitted to the

Owner by the Wednesday following. Reports should include locations

of work, descriptions of work progress, any environmental issues and/or

incidents, and any survey/salvage data and/or water quality data

collected during that reporting period.

o A final environmental monitoring report to be submitted to the Owner

within 30 days of Project completion. This report should summarize the

weekly reports, describe how the Contractor followed applicable

environmental protection requirements, legislation, regulation, and

BMPs to avoid adverse effects to the environment, summarize the

survey/salvage data and water quality data collected, and provide




evidence that all permit conditions were fulfilled and permit reporting

requirements were met. A final close-out site visit and follow up report

should be performed to provide assurance that the Project site was

returned to the Owner in accordance with the Reclamation Plan.

3.2.3.4 Authority

In the event the EM determines that some aspect of the work is creating, or will result in,

a substantial adverse effect on environmental values or resources on or adjacent to the

Project site, the EM may issue a “Stop Work Order” for that aspect of the work

potentially having an adverse effect. This aspect of work will not be allowed to resume

until conditions have been determined favourable by the EM to continue work and/or

there is a plan in place to address the adverse effect or critical path that would result in

an adverse effect.

3.3 Regulatory Context

3.3.1 Environmental Legislation and Regulatory Requirements

Due to the nature of planned construction activities potentially required to complete

the Project, a number of federal and provincial regulation and legislation may apply to

the Project.

Federal environmental protection legislation potentially applicable to the proposed

Project works may include, but not be limited to:

Canada Species at Risk Act (SARA 2002);

Canada Migratory Bird Act (1994);

Canada Wildlife Act (1973);

Fisheries Act (1985, revised 2012);

Fisheries Protection Policy Statement (2013); and,

Navigation Protection Act (1985, c. N-22).

Provincial Acts and Regulations that may be applicable to the proposed Project may

include, but not be limited to:

Environmental Management Act (BC 2003);

Hazardous Waste Regulation (BC 2009);

Heritage Conservation Act (1996);

Water Act (1996);

Waste Management Act ;

Water Sustainability Act (BC 2014);

Water Sustainability Regulations (BC 2016);

Weed Control Act (BC 1996);

Wildlife Act (BC 1996); and,

Spill Reporting Regulation (BC 2008).




3.3.2 Environmental Approvals

The MOTI has submitted and is in receipt that the Project meets the requirements of a

Notification for Changes In and About a Stream under Section 11 of the Water

Sustainability Act for:

Road Crossing Culvert – Construction/Maintenance/Removal

o Watercourse 1 associated culvert upgrade works.

Clear Span Bridge - Construction/Maintenance/Removal

o Nass River new bridge construction and existing bridge removal works.

3.3.2.1 Construction Contractor Permit Requirements

Project activities may require the contractor to obtain environmental permits and/or

licences listed below in Table 4 to facilitate works, depending on construction methods

employed.

Table 4. Potential Contractor required environmental permits.

Permit/Approval/

Notification Project Element

Governing

Agency

Permit Application

Responsibility

General Wildlife

Permit (should

amphibian

salvage be

required)

Access Road

Construction; Waste

Disposal Areas; Culvert

Works; Bridge Works; Low

Drain Installation;

Infrastructure

Decommissioning

MFLNRO Contractor

Water Use

Approval

Water use for

construction purposes

such as road dust

suppression.

MFLNRO Contractor

3.3.3 Environmental Best Management Practices

All Best Management Practices (BMPs) for the protection of the environment will be

carried out as per the MOTI SS, or as dictated by the relevant permits, licenses and

approvals.

Guidance documents that may be applicable to the Project are listed below, but may

not be all inclusive based on proposed construction methodologies by the Contractor,

or changes in Project scope. The Contractor must ensure that all appropriate BMPs are

taken into consideration, whether provided below or not, and that sufficient measures

are employed.




Land Development Guidelines for the Protection of Aquatic Habitat (Chilibeck et

al.1993);

Develop with Care 2014: Environmental Guidelines for Urban and Rural Land

Development (MOE 2014);

Standards and Best Practices for Instream Works: A Users’ Guide to Working In

and Around Water (MOE 2004, updated 2009);

National Guide to Erosion and Sediment Control on Roadway Projects

(Transportation Association of Canada 2005);

Reclamation and Environmental Protection Handbook for Sand, Gravel and

Quarry Operations in British Columbia (MOTI & Natural Resources Canada 1995);

Manual of Control of Erosion and Shallow Slope Movement (MOTI 1997);

A Field Guide to Fuel Handling, Transportation and Storage (MWLAP 2002);

Measures to Avoid Causing Harm to Fish and Fish Habitat (DFO 2013);

Best Practices for Managing Invasive Plants on Roadsides (MOTI & IPCBC 2010);

A Compendium of Wildlife Guidelines for Industrial Development Projects in the

North Area, BC (MFLNRO 2014);

Guidelines for Raptor Conservation during Urban and Rural Land Development in

BC (MOE 2013);

Approved Water Quality Guidelines (MOE 2017);

Working Water Quality Guidelines for British Columbia (MOE 2015);

Canadian Environmental Quality Guidelines for the Protection of Aquatic Life

(CCME 2014); and,

Emergency Preparedness and Response (CSA 2003), CSA Z731-03 R2009 for

Environment Canada.

3.4 Environmental Settings Summary

3.4.1 Designated Streams and Environmentally Sensitive Areas

For purposes of clearly identifying Designated Stream and Designated Environmentally

Sensitives Areas pertaining to the Project, the follow description is provided.

All and any areas below the “High Water Mark” as defined with the MOTI SS Section

165. This specifically includes, but is not limited to:

Watercourse 1, a non-classified drainage exhibiting wetland characteristics that

drains into the Nass River; and,

The Nass River.




Watercourse 2 is excluded from the list of Designated Streams and ESAs as it occurs

outside of the LSA and will not be impacted by construction activities.

3.4.2 Fishery Timing Window

As discussed in Section 5.10 of the Bridge Concept Design Report (Stantec 2017),

instream works are not anticipated for the replacement of the Nass River Bridge as the

new structure will be a ‘clear span’ crossing of the Nass River. Therefore, no Fishery

Timing Window will be applicable to works associated with the bridge replacement.

As Watercourse 1 is considered ‘non-fish bearing’, no Fishery Timing Window will be

applicable for proposed culvert upgrade works.

3.4.3 Wildlife

3.4.3.1 Avian

As described in Section 2.3.3.2, the number of ecosystems present within and adjacent

to the Project area provide foraging, breeding, and nesting habitat for a variety of

avian species. Section 34 of the Wildlife Act protects all bird nests when

active/occupied, and provides year-round protection to the nests of five species of

raptors and the great blue heron. Furthermore, Section 33 of the Species at Risk Act

states that the residence (i.e., nest) of a wildlife species that is listed as endangered or

threatened cannot be damaged or destroyed, including the nests of goshawk and

great blue heron. No listed species were observed during field assessments; however,

there is the potential for both goshawk and great blue heron to occur within the Project

area (McElhanney 2015).

Pre-clearing bird nest surveys must be conducted year round for raptor nests, and within

the breeding bird window of April 15 – August 51 for the nests of other passerine species

to aid in the protection of birds and avoid contravention of the Wildlife Act (ECC

Canada 2017). Further details are provided in the Clearing and Grubbing Plan, Section

3.5.1.4.

3.4.3.2 Mammals

Four mammals of concern – Grizzly bear, moose, wolverine and fisher – were noted to

have potential for occurrence around the Project area. Potential for encounter was

based on habitat preferences that exist in the nearby forested area and the motility of

the animal within these habitats. A WHA was identified adjacent to the Project area,

however, no impacts to wildlife are anticipated if standard mitigation measures are

1 The breeding bird window period has been developed based on the General Nesting Periods

of Migratory Birds in Canada (Environment Canada 2016) for nesting zone A2: Forest, with an 11-

20% of species nesting timing.




implemented. General mitigation measures for wildlife management are discussed in

Section 3.5.1.10.

3.4.3.3 Amphibians

A number of areas were identified to be of high value to several amphibians,

particularly western toad due to the presence of suitable habitat. Pre-construction

amphibian surveys will be conducted prior to works within wetted areas, Designated

Streams and ESAs, as described in the Instream Works Plan, Section 3.5.1.3.

3.5 Construction Environmental Management Plan Requirements

The Contractor shall provide a CEMP to the owner for acceptance and approval, in

alignment with the MOTI SS Section 165.02.02. The CEMP will be inclusive of all elements

relevant to complete the scope and duration of the Project, including but not limited

to:

A clear description of how the work will comply with environmental protection

requirement of the Contract, including but not limited to the MOTI SS, Special

Provisions, and Environmental Approvals.

A summary that clearly demonstrates the Contractor’s understanding of the

specific environmental issues included with the work, including applicable

Environmental Approvals.

A description that demonstrates the Contractor’s understand of roles and

responsibilities held by species parties involved in the Project.

Clear identification of the process, including duration and sequence of each

task, leading to the receipt of Environmental Approvals, and the linkage

between the process and the Project schedule.

Contact names, positions and telephone numbers of individuals responsible for

elements of the CEMP and Environmental Agency contacts.

To ensure all personnel involved on the Project are aware and understand

environmental commitments, the Contractor will provide Project orientation to all

personnel prior to individuals participating in the Works. Project orientations must meet

requirements outlined within the MOTI SS Section 165.02.04.

3.5.1 Detailed Plans

The CEMP shall provide specific plans that describe how works shall be conducted in

respect to certain activities and/or resources. Plans shall include Environmental

Procedures as described within MOTI SS Section 165.01(i), that detail task specific

measures/steps to be taken to ensure protection of the environment, and in particularly

Designated Streams and Environmentally Sensitive Areas. Detailed plans to be included

at a minimum in the CEMP are introduced in the below sections.




3.5.1.1 Environmental Monitoring Plan

As specified in above sections, the Contractor will retain the services of an

Environmental Monitor as defined within the MOTI SS Section 165.02. The EM will be

responsible for providing weekly reports to the Owner during construction on behalf of

the Contractor. Reports shall include details on construction activities in relation to the

environment, specifically addressing this EMP, the CEMP, and any terms or conditions of

Environmental Approvals. This may include, but is not limited to:

Description of measures to be implement on site within the Construction Waste

Management Plan;

Review and status update of storage and handling of hazardous materials;

Update on activities completed within Designated Streams and Environmentally

Sensitive Areas;

Summary of equipment Inspection records and practices;

Summary of bird nest surveys;

Summary of fish and amphibian salvages; and,

Update on implementation and function of erosion and sedimentation controls.

Water Quality

The Contractor’s CEMP should contain a water quality section which will clearly

describe how water quality and quantity will be measured, monitored, and maintained

during and following construction to ensure conditions meet the BC Approved Water

Quality Guidelines (2015) for Protection of Aquatic Life.

The following best practices are recommended and will be applied to construction

activities to avoid harm to fish or fish habitat:

Ensure that all deleterious substances including fuels, paint, primers, blasting

abrasives, rust solvents, degreasers, concrete/grout, or other chemicals do not

enter any drainage or watercourse;

Immediately implement spill response procedures outlined in the Environmental

Incident Response and Reporting Plan upon discovery of a spill;

Manage water to prevent silt or high turbidity water entering any watercourse;

Establish any soil stockpiles above the high water mark of any watercourse;

Regularly inspect and repair all erosion and sediment control measures and

structures throughout construction (details to be included in the Erosion and

Sediment Control Plan);

Immediately stabilize any banks or shoreline disturbed during construction by

revegetating as soon as practicable;

Ensure only clear rock is used near any drainage or watercourse – no acid

generating rock is to be used on site;




Ensure only clean machinery is used on site and that all machinery is free of

leaks;

Wash, refuel and service any machinery on stable ground at least 100 m from

any watercourse;

Turbidity will be measured upstream and downstream of each work site in a

frequency proportionate to the scale of construction. The British Columbia

Ambient Water Quality Guidelines (Criteria) for Turbidity (Caux et al. 1997) will be

adhered to.

Clear Flows (background < 8 NTU)

Change from background of 8 NTU at any one time for a duration of 24 hours in all

waters during clear flows or in clear waters; and,

Change from background of 2 NTU at any one time for a duration of 30 days in all

waters during clear flows or in clear waters.

Turbid Flows (background > 8 NTU)

Change from background of 5 NTU at any time when background is 8-50 NTU during

high flows or in turbid waters; and,

Change from background of 10% when background is greater than 50 NTU at any

time during high flows or in turbid waters.

3.5.1.2 Air Quality and Dust Control Plan

Vehicle and equipment emissions and fugitive dust dispersal are the primary sources of

negative air quality associated with construction activities. In order to reduce the

effects, the following mitigation strategies are proposed.

Emission Reduction Strategies

Implementation of innovative and practical idle reduction strategies are encouraged

to reduce emissions from the Project, as per MOTI SS Section 165.16.02. Idle reduction

strategies fall into four groups:

Location of staging areas to minimize impact of emissions;

Idling time reductions (construction vehicles and equipment);

Outreach and communication (site orientations and tailgate meetings); and,

Idle reduction technologies.

Dust Control Strategies

Dust control is anticipated to be required as construction will likely involve drilling and

blasting for a significant portion of the Project. Dust control strategies must be carried

out in accordance with MOTI SS Section 165.16.03. Should temporary water use be

required for dust suppression it must be carried out under applicable Water

Sustainability Act Permits (Section 10(1)) Short Term Temporary Water Use. All dust

control strategies will not result in sedimentation to any surface watercourses. Should




chemical dust suppressants be required, they will be limited to travelled road surfaces

and will not be applied within 30 m of any surface watercourse crossing or other ESA.

3.5.1.3 Instream Works Plan

The CEMP shall include an Instream Works Plan that will detail how works will be

completed in Designated Streams and ESAs. The Instream Works Plan will be in

alignment with the MOTI SS Sections 165.10 and 165.13.04. Environmental procedures

will also be required for certain construction tasks, including but not limited to:

Bridge Construction and Removal;

Watercourse Isolation; and,

Culvert Removal and Installation.

Pre-construction amphibian surveys shall be conducted prior to works within wetted

areas, or Designated Streams and ESAs. Should amphibians be detected, they shall be

salvaged and relocated away from the construction area, and into similar habitat

areas under an applicable provincial permit for amphibian salvage and relocation. All

applicable wildlife collection permits must be kept on-site at a location known to

Ministry and Contractor representatives in the event of regulatory or

compliance/enforcement agency site visit.

There is to be no water below the high water mark (HWM) on the Nass River.

3.5.1.4 Clearing and Grubbing Plan

A Clearing and Grubbing Plan must be prepared as part of the CEMP. Prior to initiation

of vegetation clearing, pre-construction surveys for bird nests shall be completed if

activities are to occur within the breeding bird window for nesting zone A2 (forest) of

April 15 – August 5 to aid in the protection of birds and avoid contravention of the

Wildlife Act (ECC Canada 2017). A sweep for raptor nests and nests of wildlife species

listed as endangered or threatened should be conducted prior to tree clearing

activities regardless of the time of year. Should any of these nests be found, the EM

should report the nest to the Canadian Wildlife Service (CWS) and follow the

recommended minimum buffers for nesting raptors.

Clearing activity may occur up to the limits outlined in the Project drawings, or as

specified by the Ministry Representative and in accordance with Sections 165 and 200

of the MOTI SS. Clearing limits should be visibly staked or flagged by the Contractor prior

to commencing clearing operations.

The Clearing and Grubbing Plan should lay out the schedule for clearing activity and

discuss BMPs to reduce the likelihood of negative environmental impacts as a result of

clearing. Erosion and sediment control measures should be implemented immediately

following clearing and grubbing activity. Care will be taken to protect and preserve all

vegetation outside of the clearing boundary; if disturbed, the Contractor will replace

such vegetation to the satisfaction of the Owner’s Environmental Representative.




3.5.1.5 Concrete Management Plan

Concrete products are harmful to fish and aquatic organisms. Cast-in-place concrete

must be isolated from sensitive areas during the curing period to avoid increases in

water alkalinity and resulting pH. A Concrete Management Plan shall detail how

construction activities involving the use of concrete or cement will be conducted, and

identify mitigation measures that will be implemented to ensure the protection of

surrounding Designated Streams and ESAs. The Concrete Management Plan should be

in alignment with requirements in the MOTI SS Section 165.14.04.

3.5.1.6 Invasive Plant Management Plan

No invasive plants were identified during field assessments; however, detection may

have been hindered due to the timing of field surveys. As part of the CEMP, an Invasive

Plant Management Plan must be generated outlining mitigation measures intended to

reduce the potential of invasive plant or noxious weed introduction or spread, and the

plan must be in accordance with the MOTI SS Section 165.15. BMPs to ensure that

invasive plants and/or noxious weeds are not spread or propagated during

construction could include:

Discussion of management of noxious weeds and invasive plant measures

during the on-site kickoff meeting;

Washing all equipment clean of soils, seeds, and plant parts prior to entering the

project site at the start of the Project;

Inspecting all equipment for soil/seeds/plant material when the Project is

completed;

Minimizing soil disturbance and revegetating disturbed areas as quickly as

possible;

If possible, locating laydown and storage areas away from infested areas; and,

Ensuring mulch sources are certified weed free and are visually inspected prior

to application to ensure no invasive plant seeds are present. Hay shall not be

used as mulch unless it is from a local area demonstrated to be free of invasive

species.

3.5.1.7 Erosion and Sediment Control Plan

Erosion and Sediment Control Plan (ESCP) in accordance with the National Guide to

Erosion and Sediment Control on Roadway Projects (Transportation Association of

Canada 2005) and MOTI SS Section 165.04. The main objective of the ESCP is to

minimize the introduction of sediment to watercourses adjacent to and within the site

and to surrounding vegetation. Erosion and sedimentation have the potential to cause

adverse environmental impacts if not effectively addressed and controlled. The

Contractor will be responsible for planning, scheduling, and performing the work in such

a manner that the quality of surface water flowing from the site meets provincial water

quality guidelines (Caux et al. 1997).




At a minimum, the ESCP must address the following items:

Construction schedule for proposed activities as they pertain to the ESCP and

construction staging including anticipated duration of construction;

A description of procedures used to limit the potential for erosion and sediment

production including estimate of all work areas, description of equipment to be

used in construction and staging of operations;

A detailed description of site specific measures for runoff and drainage

management;

A detailed description of the site specific mitigation measures and design

information for erosion prevention and control for example sizing of culverts,

ditches or sediment/detention ponds, silt fence specifications, and a description

of ditching and berming;

A schedule identifying various sloped areas by station and the dates in which

they will be protected using temporary and permanent revegetation measures

such as hydroseeding;

A detailed description of mitigation measures for ensuring acceptable water

quality and quantity at points of discharge to watercourses including size and

specifications for any proposed water treatment facilities;

A key plan and drawings, in suitable detail of the site and proposed mitigation

measures and applicable construction practices;

A written commitment of on-site equipment (i.e., water pumps) and materials

(i.e., silt fence, hay bales, rock armoring, ditch breakers) for erosion sediment and

drainage control to deal with emergency situations that may arise;

A written commitment of on-site equipment and staff to handle any fish salvage

and transfer operations if required; and,

A description of the specific monitoring procedures prior to, during and after

completion of construction activities at the Project site.

3.5.1.8 Construction Waste Management Plan

A Construction Waste Management Plan will be prepared as part of the CEMP to

address construction waste (including any hazardous waste and explosives waste) and

will be in accordance with MOTI SS Section 165.14. The plan will outline procedures for

how waste will be temporarily stored on-site, removed and disposed of off-site. All waste

must be disposed of at an approved facility that meets all federal, provincial, regional

and municipal bylaws and regulations. The Construction Waste Management Plan must

also contain measures for disposal of any acid generating rock potentially generated

by construction activities.

Contaminated Waste

In the event that contaminated material is produced or discovered on site, the

Contractor shall implement a Stop Work Authority in the specific area and notify the EM




and Owner. Measures to ensure the containment and proper disposal of any such

contaminated waste must be outlined within the Construction Waste Management

Plan, in accordance with the MOTI SS Section 165.14.03.

3.5.1.9 Environmental Incident Response and Reporting Plan

An Environmental Incident Response and Reporting Plan shall be provided in the

Contractors CEMP that describes strict environmental procedures to be followed in the

event of an environmental incident, including but not limited to a hazardous substance

release/spill/leak during construction.

Spill Contingency Response Procedures

The Environmental Incident Response and Reporting Plan will include Spill Contingency

Procedures. These procedures will be used to guide spill prevention and emergency

response on-site. The procedures will be based on requirements outlined in the MOTI

2016 Standard Specifications 165.13.02 through 165.13.04, and 165.14.01 through

165.14.05. Procedures will also clearly detail how environmental incidents will be

reported, what information will be required, and roles and responsibilities of applicable

personnel.

Potential spill sources include but are not limited to:

Leaking or ruptured fuel tanks;

Spills during refueling of vehicles and equipment; and,

Leaks from equipment or ruptured hoses.

General Measures for Spill Prevention and Containment

Spill prevention and containment will be achieved by application of the following

measures:

All equipment used within 5 m of any surface watercourse will be equipped with

bag type spill kits. At each surface watercourse crossing there will be at least

one fully stocked drum type spill kit available for timely deployment.

Hazardous or toxic products will not be stored within 30 m of any surface

watercourse and no washing of equipment is allowed within the riparian zone of

any watercourse.

Standard spill kits will be available at all refueling, lubrication, repair locations,

and on each piece of heavy equipment. These spill kits will be capable of

capturing 125% of potential spill volumes.

All on-site personnel will be trained in hazardous materials storage, handling

requirements, and effective spill response.

Generating refueling procedures for heavy equipment that will not impact any

surface water drainages in case of a release of hydrocarbons.




All fuel brought onto site will be stored within tidy tanks or in approved

secondary containment and will be clearly labelled.

Fuel and lubricant containers will be securely stored to prevent movement with

lids secured during transport.

During periods of inactivity, all fuels lubricants and other toxic substances will be

stored in locked containers.

All waste fuel or products such as filters will be stored in spill proof containers and

discarded at an appropriate facility as directed by the Ministry Representative.

Spill Kit Contents

All spill kits on-site will be stocked by a commercial vendor and include standard kit

contents for fuel, oil, and coolant spills. Any spill response materials used will be

documented and replaced prior to works restarting.

Safety Data Sheets

The Contractor will ensure that a copy of Safety Data Sheets (SDS) for all chemical

substances being used on-site will be maintained on-site in a clearly marked binder.

These sheets will be consulted in the event of a spill or leak to determine any potential

human health and environmental risks associated with the product.

Spill Cleanup Practices and Procedures

For spills to land, contain the material and collect it using applicable absorbents.

Separate and transfer the absorbents (spill kit materials) and containment material

(contaminated soils) to drums or other inert sealed containers. Clearly label drums with

their contents and store in a secured area prior to being hauled off-site for disposal by a

certified hauler and location authorized to dispose of contaminated materials and soils.

For spills to water, absorbent booms will be placed to prevent the spilled product from

flowing downstream. Absorbent materials will be used to recover the floating product.

Once the product is recovered and the spill abated, contain spill materials in drums or

other inert containers, clearly label the containers. Store the containers in a secure

location for off-site disposal by a certified hauler at a location authorized to dispose of

contaminated materials.

3.5.1.10 Wildlife Management Plan

Wildlife management measures include but are not limited to:

Reporting all wildlife observations on or adjacent to the work site to the EM.

Upholding a clean and well maintained work site, free of food waste and other

potential attractants, as should be clearly described within the CEMP, specifically

the Construction Waste Management Plan.

Adhering to safe speed limits and yielding to wildlife to minimize wildlife vehicle

collisions.




Feeding and/or harassment of wildlife will not be tolerated.

Should an increase in wildlife activity be observed, the EM may implement additional

mitigation measures.

3.5.1.11 Reclamation Plan

The Contractor’s CEMP should include a Reclamation Plan which will describe the

proposed methodology and timing for site recovery and closeout following Project

completion. Some general measures to include in this Plan are:

Removal of surplus materials and wastes from the work site; including but not

limited to temporary erosion and sediment control measures (e.g. sediment

fencing).

Prevent the spread of invasive species on equipment by conducting equipment

inspections prior to the equipment leaving site.

Grade and re-contour sites to their original condition, wherever possible. Restore

natural drainage patterns.

Rip or scarify soils in areas that have been compacted.

Re-establishment of ground cover on disturbed areas as soon as possible. Apply

a weed-free mix of grasses and legumes suitable to the climate conditions,

where available. All seed mixtures must be approved by the Owner’s

Environmental Representative prior to use.

Minimize traffic and disturbance during reclamation by avoiding the use of large

pieces of equipment, and conducting by hand as much of the work as possible.

De-commissioning of temporary access roads/trails including grading and cross-

ditching to minimize erosion.




4.0 References

Canadian Council of Minister of the Environment. 2014. Canadian Environmental

Quality Guidelines for the Protection of Aquatic Life.

http://www.ccme.ca/en/resources/canadian_environmental_quality_guidelines/.

Accessed April 2017.

Canadian Standards Association. 2003. Emergency Preparedness and Response: A

National Standard of Canada. CAN/CSA-Z731-03 (R2009).

Caux, P.-Y., D.R.J. Moore, and D. MacDonald. 1997. Ambient water quality criteria for

turbidity, suspended and benthic sediments in British Columbia: Technical appendix.

Prepared for British Columbia Ministry of Environment, Lands and Parks, Water Quality

Branch, Victoria, BC. As referenced in the Canadian Council of Ministers of the

Environment. 2002. Canadian Water Quality Guidelines for the Protection of Aquatic

Life – Total Particulate Matter.

Chilibeck, B., Chislett, G., and Norris, G. 1993. Land Development Guidelines for the

Protection of Aquatic Habitat. Prepared for Fisheries and Oceans Canada.

http://www.dfo-mpo.gc.ca/Library/165353.pdf. Accessed January 2017.

[DFO] Fisheries and Oceans Canada. 2013. Measure To Avoid Causing Harm to Fish and

Fish Habitat. http://www.dfo-mpo.gc.ca/pnw-ppe/measures-mesures/index-eng.html.

Accessed April 2017.

[ECC Canada] Environment and Climate Change Canada. 2017. General Nesting

Periods of Migratory Birds in Canada. http://www.ec.gc.ca/paom-

itmb/default.asp?lang=En&n=4f39a78f-1#_04. Accessed January 2017.

E-Fauna BC. 2016. http://ibis.geog.ubc.ca/biodiversity/efauna/ Accessed October

2016.

Fisheries Inventory Summary System. 2016 Fish Inventory Data Queries. Ministry of

Environment. http://www.env.gov.bc.ca/fish/fidq/queries.html Accessed October 2016.

Fish-stream Identification Guidebook – 2nd ed. 1998. Ministry of Forests and Range.

Fish-stream Crossing Guidebook – revised edition. 2012. Ministry of Forests, Lands, and

Natural Resource Operations.

Golder Associates. 2016. Archaeological Impact Assessment of the Ministry of

Transportation and Infrastructure's Proposed Nass River Bridge Replacement and

Approaches Project. Permit 2016-0097 Final Report. Prepared for MOTI by Adrienne

Marr. Terrace, BC.

McElhanney Consulting Services Ltd. 2015. Environmental Constraint Mapping for




Replacement of the Nass River Bridge. Prepared for MOTI by Kate Dillon and Brad

Pollard. Terrace, BC.

[MOE] Ministry of Environment. 2013. Guidelines for Raptor Conservation During Urban

and Rural Land Development in British Columbia.

http://www.env.gov.bc.ca/wld/documents/bmp/raptor_conservation_guidelines_2013.

pdf. Accessed January 2017.

[MOE] Ministry of Environment. 2014. Develop with Care 2014: Environmental Guidelines

for Urban and Rural Land Development in British Columbia.

http://www.env.gov.bc.ca/wld/documents/bmp/devwithcare/. Accessed January

2017.

[MOE] Working Water Quality Guidelines for British Columbia. 2015.

http://www2.gov.bc.ca/assets/gov/environment/air-land-

water/water/waterquality/wqgs-wqos/bc_env_working_water_quality_guidelines.pdf.

Accessed February 2017.

[MOE] Ministry of Environment. 2017. Habitat Wizard. http://www.env.gov.bc.ca/

habwiz. Accessed January 2017.

[MOE] Ministry of Environment. 2017. British Columbia Approved Water Quality

Guidelines: Aquatic Life, Wildlife & Agriculture.

http://www2.gov.bc.ca/gov/content/environment/air-land-water/water/water-

quality/water-quality-guidelines/approved-water-quality-guidelines. Accessed January

2017.

[MOF] Ministry of Forests. 1998. Fish-stream Identification Guidebook 2nd Edition. Forest

Practices Code of British Columbia. Victoria, BC.

[MFLNRO] Ministry of Forests, Lands, and Natural Resources Operations. 2014. A

Compendium of Wildlife Guidelines for Industrial Development Projects in the North

Area, British Columbia. http://www.env.gov.bc.ca/eirs/bdp/

biodiversity_publications_index/ bdpStaticPageC.htm. Accessed January 2017.

[MOTI] Ministry of Transportation and Infrastructure. 1997. Manual of Control of Erosion

and Shallow Slope Movement.

https://www.th.gov.bc.ca/publications/eng_publications/environment/references/Man

_Control_Erosion.pdf. Accessed April 2017.

[MOTI] Ministry of Transportation and Infrastructure. 2016. Standard Specifications for

Highway Construction Volume 1: Section 165 – Protection of the Environment.

[MOTI] Ministry of Transportation and Infrastructure. 2016. Standard Specifications for

Highway Construction Volume 1: Section 200 – Clearing and Grubbing.




[MOTI and NRC] Ministry of Transportation and Infrastructure and Natural Resources

Canada. 1995. Reclamation and Environmental Protection Handbook for Sand, Gravel

and Quarry Operations in British Columbia. http://www2.gov.bc.ca/assets/gov/driving-

and-transportation/transportation-infrastructure/contracting-with-the-

province/documents/16604-2017/t3_-_rclmhandbook1995.pdf. Accessed April 2017.

[MOTI and IPCBC] Ministry of Transportation and Infrastructure and Invasive Plant

Council of BC. 2010. Best Practices for Managing Invasive Plants on Roadsides.

https://www.th.gov.bc.ca/publications/eng_publications/environment/ManagingInvasi

vePlants.pdf. Accessed April 2017.

[MWLAP] Ministry of Water, Land, and Air Protection. 2002. A Field Guide to Fuel

Handling, Transportation & Storage.

http://www2.gov.bc.ca/assets/gov/environment/waste-management/industrial-

waste/industrial-waste/oilandgas/fuel_handle_guide.pdf. Accessed April 2017.

[MWLAP] Ministry of Water, Land, and Air Protection. 2004 (updated 2009). Standards

and Best Practices for Instream Work.

http://www.env.gov.bc.ca/wld/documents/bmp/iswstdsbps march2004.pdf. Accessed

January 2017.

Resource Inventory Standards Committee. 2008. Reconnaissance Fish and Fish Habitat

Inventory: Standards and Procedures. Report prepared by BC Fisheries Information

Services Branch for the Resource Inventory Standards Committee. Version 2.0

Stantec. 2017. Bridge Concept Design Report: Project No. 37195-0001 Highway 37 – Nass

River Bridge No. 07773 Replacement and Approaches. Prepared for MOTI by Laurie

Christiansen. Kamloops, BC.

Transportation Association of Canada (TAC). 2005. National Guide to Erosion and

Sediment Control on Roadway Projects. Ottawa, ON.

www.triton-env.com Page 1

Photo 1. View of Nass River bridge looking northbound from rest area.

Photo 2. View of Nass River bridge looking southbound.


Photo 3. View of highway approach looking southbound with bridge in

the background.

Photo 4. View of rest area south of the Nass River bridge.


Photo 5. View of watercourse 1 upstream of the highway crossing

looking upstream.

Photo 6. View of watercourse 1 upstream of the highway crossing

looking downstream.


Photo 7. View of watercourse 1 downstream of the highway crossing

looking downstream.

Photo 8. View of culvert inlet at watercourse 1.


Photo 9. View of overgrown culvert outlet at watercourse 1.

Photo 10. View showing one of many dry falls barriers observed

downstream from the highway crossing on watercourse 1.


Photo 11. View of steep ravine through which watercourse 1 (dry at

time of survey) would convey flows to Nass River below

Photo 12. View of WQ2 site where Nass River baseline water quality

was obtained. View looking downstream taken from right bank with

bridge in background showing typical habitat conditions.


Photo 13. View looking northbound at bridge structure.

Photo 14. View looking southbound at bridge structure.


Photo 15. View showing roosting conditions under the bridge structure.

Photo 16. View of large active wasp nest on bridge structure seen

through spotting scope.


Photo 17. View looking northbound at disturbed area and BC Hydro

right-of-way adjacent to the highway.

Photo 18. View of culvert inlet at watercourse 2 looking downstream.


Photo 19. View looking upstream at watercourse 2 taken from culvert

inlet.

Photo 20. View looking upstream at watercourse 2 taken ~30 m

upstream from the highway crossing.


Photo 21. View of wetland (beginning of WHA) at approximately 180 m

upstream from the highway crossing with watercourse 2.

Photo 22. Additional view of wetland at approximately 180 m

upstream from the highway crossing with watercourse 2.


Photo 24. View looking upstream at culvert outlet at watercourse 2.

Photo 23. View from highway of watercourse 2 culvert outlet showing

wetland complex downstream from the crossing.


Photo 25. View of plunge pool taken from watercourse 2 culvert outlet

looking downstream.

Photo 26. View showing wetland habitat conditions approximately 100

m downstream from the highway crossing with watercourse 2 at WQ5.


Photo 27. Inlet view of one of two 600 mm drainage culverts identified

south of the highway.

Photo 28. View of CMT identified and flagged by others, located at

UTM 09V 0490229 6209935.


Photo 29. View of zonal habitat conditions in vegetation polygon 9.

Photo 30. View of black huckleberry shrub typically found within the

zonal upland habitats assessed.


Photo 31. View of possible den site (Den1).


Photo 33. View of wildlife tree in advanced stage of decay (WT1).

Photo 34. View of zonal habitat conditions in vegetation polygon 1.


Photo 35. View of habitat conditions in polygon 2.

Photo 36. View of potential mustelid den opening (Den2).


Photo 37. View of potential bat roost habitat in balsam (WT2).

Photo 38. View of bear scat observed at Sign4.


Photo 39. View of habitat conditions in disturbed area (vegetation

polygon 6).

Photo 40. View of typical habitat conditions in vegetation polygon 8.


Photo 41. Southbound view of anthropogenic conditions in vegetation

polygon 8, south of the bridge site.

Photo 42. View of typical habitat conditions in vegetation polygon 12.


Photo 43. View of typical disturbance conditions in vegetation polygon

3.

Photo 44. View showing plot of rare ecosystem black

cottonwood/subalpine fir/devil’s club southeast of vegetation polygon

12.


Photo 41. Additional view of rare ecosystem identified southeast of

vegetation polygon 12.

Photo 42. View of moose tracks identified in vegetation polygon 12

(Sign3).

environmental assessment environmental management plan · environmental. assessment &...

Documents