non-native vegetation control on the lower and …...reach d 1.4 river oaks pathway to montague...

Non-native vegetation control on the lower and downtown Guadalupe River flood projects

Authorization Reach or Segment Acres Location and Notes

Guadalupe Adaptive Management Team

(AMT)

Reach B 0.3* Trimble Rd to Highway 101 Airport Parkway to I-880

I-880 to Coleman Ave Reach A (weeping willows) 0.2

Segments 1 and 2 (west) 0.4 Subtotal 0.9* Completed AMT recommendations

Lower Guadalupe River Project (LGRP) Mitigation and Monitoring Plan (MMP)

Reach D 0.1 Montague Expressway Highway 101 to Airport Parkway Reach A 2.9

Subtotal 3.0 Completed MMP and CDFW agreement

Clean, Safe Creeks (CSC) grant / Safe, Clean Water and Natural

Flood Protection Program Project D2*

Reach D 1.3 River Oaks Pathway to Montague Expressway Montague Expressway to Trimble Rd

Trimble Rd to Highway 101 Highway 101 to Airport Parkway

I-880 to Hedding St I-880 to Coleman Ave

Reach C 0.3 Reach B 0.2* Reach A 0.2

Segment 1 (east) 0.4 Segments 1 and 2 (west) 0.1

Subtotal 2.5* Completed CSC grant and CDFW agreement

Subtotals for reach or segment

Reach D 1.4 River Oaks Pathway to Montague Expressway Montague Expressway to Trimble Rd (W-side)

Trimble Rd to Highway 101 Highway 101 to I-880 I-880 to Coleman Ave

Reach C 0.3 Reach B 0.3 Reach A 3.4

Segments 1 and 2 0.8 Total 6.2 River Oaks Pathway to Coleman Ave

Notes: * LGRP Reach B acres controlled for the Clean, Safe Creeks grant is also counted as fulfilling an AMT recommendation. The 0.2 acres was not LGRP riparian or shaded riverine aquatic mitigation. None of the Clean, Safe Creeks grant or Safe, Clean Water and Natural Flood Protection Program Project D2 non-native vegetation control locations were inside mitigation areas. LGRP Reach C (Montague Expressway to Trimble Ave) requires more non-native vegetation management: The 0.3 acres above were only along the west (W) levee. Areas above do not include vegetation management of non-native vines, shrubs, saplings, and giant reed (Arundo donax) conducted under the district’s Stream Maintenance Program (SMP). Long-term management of non-native vegetation and conservation of native riparian habitat along the Guadalupe River will be conducted under SMP.

1st St

Lick Mill Blvd

Moreland Way

Fitz

patr

ick

Way

Innovation Dr

Crand

all Cir

Orchard D

r

Mill Creek Ln

Park View Dr

Oak Grove Dr

River

Sid

e Ct

Mansion P

ark Dr

Mansion Ct

Lick Mill Blvd

Montague Expy

Gua

dalu

pe R

iver

Approximate Scale

0 100 200 300 40050Feet

N

Date of Photography: June 2009

GIS themes are for illustration and general analysispurposes only and are not accurate to surveying orengineering standards. Information is not guaranteedto be accurate, current, or complete and use of thisinformation is your responsibility.

Nonnative VegetationWater Years 2014 and 2015Guadalupe River projects,

San Jose and Santa Clara, CALegend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree

Giant reed

Ash

Holly oak

SRA Cover Mitigation

Planting area (SRA PA)

Pilot planting area (SRA PA)

Riparian Vegetation MitigationMitigation planting area

Sampling plot (RIP)Line transect (RIP-T)

Tree basal area reference plot (RIP REF)

CalTrans mitigation site

SCVWD VMUrevegetation sites

Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

Acacia

!. olive

Elm

cactus

Vinca

English ivy

Himalayan blackberry

Montague Expy

River Oaks Pathway

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

D

Guadalupe River

450+00

460+00

420+00

470+00

430+00

440+00

Triathlon Inc.

Tree SpeciesAlmondArroyo WillowAshBlack WalnutBox ElderBuckeyeCoast Live OakCottonwood

ElderberryHolly OakPlumRed WillowSandbar WillowSycamoreValley OakWeeping Willow

Guadalupe River - Reach CTrimble Rd to Montague Expy

Species in 15ft Buffer

D

D

D490+00

500+00

480+00

£�101£�101

£�101

Ewert Rd

Orchard Pkwy

Seaboard Ave

Atmel

Way

Compo

nent

Dr

Channing Ave

Airport Blvd

Trimble

Rd

Trimble

Rd

Trimble

Rd

ReachBGuadalupe River

Approximate Scale

0 100 200 300 40050Feet

N



Nonnative VegetationWater Year 2014

Guadalupe River projects, lower and downtownSan Jose and Santa Clara, CA

Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak


Planting area (SRA PA)Sampling plot (SRA Plot)


Riparian Vegetation MitigationMitigation planting area





Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

Acacia

!. olive

Elm

cactus

Vinca

English ivy

Vinca

Aprime

A3

A1

A15

A14

A2

Airport Blvd

Hwy 87

Airport Blvd

Hwy 87

Approximate Scale

0 50 100 150 20025Feet

N





Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak




Riparian Vegetation MitigationPlanting area





Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

£�101

Acacia

Airport Green Isl

and

Elm

cactus

!. olive

A4

A3

A9

A5

A12

A14

A8

A11

A15

A13

A10

Hw

y 87Airport Blvd

Guadalupe Pkw

y

Airport BlvdH

wy 87

Guadalupe Pkw

y

Approximate Scale

0 50 100 150 20025Feet

N





Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak









Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

�«87

Acacia

Elm

cactus

!. olive

A6

A5A8

A7

Airport Blvd

Guadalupe Pkwy

Airpor

t Pkw

yAirport Blvd Guadalupe Pkwy

Approximate Scale

0 50 100 150 20025Feet

N





Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak









Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

Airpor

t Par

kway

�«87

Acacia

Elm

cactus

!. olive

RIP-2

RIP-1

RIP-20

RIP-19

SRA PA-16

SRA PA-18

SRA PLOT-08A

SRA PA-14

SRA PLOT-08B

SRA PLOT-08D

SRA PA-17

SRA PLOT-08C

SRA PA-13

SRA PA-15

RIP-T9

RIP-T8

RIP-T7

RIP-T6

RIP-T5

RIP-T11

RIP-T10

RIP-T4

RIP-T12

RIP-T3

RIP-T2

RIP-T1

RIP REF-1

�|}�87

Hedding St

Ruff D

r

�|}�87

�|}�87

�|}�87

�|}�87

Stand 06

Approximate Scale

0 50 100 150 20025Feet

N



Water Year 2012Nonnative woody riparian vegetation; downtown Guadalupe River Project

Segment 1, San Jose, CA

Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Elm

Acacia

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak


Planting area (SRA PA)

Sampling plot (SRA Plot)







Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

!. olive

London planetree

Japanese privet

RIP-18

RIP-17

RIP-15

RIP-16

SRA PA-26SRA PLOT-09C

SRA PA-25

Segment 2

RIP-T45

RIP-T46

RIP-T47

RIP-T44

RIP-T48

RIP-T49

RIP-T50

RIP-T43

RIP REF-2

Coleman Ave

Ryland Ave

Vendome St

Clayton Ave

Santa Teresa St

Lenzen Ave

Hawthorne WayN San Pedro St

Coleman Ave

Stand 02

SABAB 01

Approximate Scale

0 50 100 150 20025Feet

N





Legend

Nonnative riparian

Palm

Weeping willow

Black locust

Walnut

Eucalyptus

Tree-of-heaven

Peruvian peppertree


Giant reedAsh

Holly oak









Lombardy popular

Chinese pistache

mapped by others

Italian buckthorn

London planetree

Japanese privet

castor bean

�«87

Acacia

Elm

cactus

!. olive

Lower Guadalupe RiverVegetation Removal

Non-native trees near the pedestrian bridge are a flood protection concern identified by the United States Army Corps of Engineers.

The Safe, Clean Water measure, passed in 2012 to continue a parcel tax initially approved by voters in 2000, funds this effort to revitalize stream, upland, and wetland habitat. The water district’s web page at http://www.valleywater.org/SCW-D2.aspx provides more information about this priority as it relates to the measure.

Work should take two to three weeks, with crews on site weekdays from 8 a.m. to 5 p.m. using trucks, crane, wood chippers, chainsaws and other tools.

Vehicles will use Montague Expressway and Tasman Drive for project access, but the Guadalupe River Trail will remain open and signage will alert the public.

Vegetation maintenance targets invasive speciesThis month, the Santa Clara Valley Water District will remove non-native trees, shrubs and woody plants on the lower Guadalupe River as part of a larger effort to ensure flood protection in the area and preserve native habitats.

The work is targeted to begin Saturday, Oct. 4. Removal of invasive and non-native vegetation along the river around the River Oaks Pathway bridge and Montague Expressway will prevent flows from harming the levee, bridges and trail.

The reach is currently overrun, particularly with invasive weeping willow trees, creating a hazard as invasive plants can affect levee and bank stability and, due to their thickness, block channels and hamper water flow.

Read more about weeping willows at http://www.na.fs.fed.us/fhp/invasive_plants/weeds/weeping-willow.pdf or on the flier accompanying this mailer.

Highlight indicates project area.

SantaClara

SanJose

Guadalupe River

Montague Expy

Tasman Dr

Lafayette St

Lick Mill Blvd

1st St

N

Project Area

Project Area

continued on back »

Last year, the water district performed similar vegetation removal work in the same area.

Conta

ct u

s For more information, contact Doug Titus at (408) 630-2083, or visit

our website at www.valleywater.org and use our

Access Valley Water customer request and information system. With three easy steps, you can use this service to find out the latest information on the project or to

submit questions, complaints or compliments directly to a district staff person.

© 2013 Santa Clara Valley Water District • 1/7/2013 TM

Importance of vegetation management in our creeks Vegetation management is a key strategy of the water district’s mission as it:

• Maintains 100-year flood protection and river flow conveyance

• Ecologically benefits forests, fish and wildlife by reducing competition, maintaining genetic integrity of native plants and reducing negative impacts of some non-native plants

• Improves health, functions and values of the river’s native riparian forest

• Meets permit requirements of Guadalupe River flood protection projects to provide native riparian forest and Shaded Riverine Aquatic cover mitigation

• Improves views to the river, increasing scenic and aesthetic values and the effectiveness for police and park ranger patrols.

Translations

You’re in a watershedA watershed is the area of land that drains to a common waterway. In Santa Clara County, our creeks and rivers catch rain and runoff from storm drains and carry the water north to San Francisco Bay or south to Monterey Bay. Along the way, some of the water is used to fill reservoirs for drinking water, replenish the underground aquifer and create better habitat for fish and wildlife. This project is in the Guadalupe Watershed.

GuadalupeWatershed

LowerPeninsula

Watersheds

Uvas/LlagasWatersheds

Drains toAlameda County

CoyoteWatershed

WestValley

Watersheds

Weed of the Week

Weeping Willow Salix x sepulcralis Simonkai [alba × ?pendulina] Synonyms: Salix babylonica auct. non L. p.p. [misapplied], Salix ×chrysocoma Dode, Salix salomonii hort., Salix ×sepulcralis Simonkai var. chrysocoma (Dode) Meikle Native Origin: China

Weeping willow shades out and displaces native vegetation, potentially leading to erosion and poor water quality.

Description: Weeping willow is a deciduous tree in the willow family (Salicaceae) that grows 35 to 70 feet in height. It is easily recognized by its short trunk (2 feet in diameter) and broad, open, irregular crown of drooping golden yellow branches. The bark is grayish-brown

deeply and coarsely fissured. The leaves are narrow, lance-shaped, alternate, finely saw-toothed, long-pointed tips, and 2 1/2-5 inches long and up to 1/4-1/2 inches wide. They are bright green above, bluish-green below, and only hairy, on both surfaces, when young. Leaves hang from short leafstalks. Male and female flowers are yellow and appear in catkins with the leaves on separate trees (dioecious) in April. Fruit appears as a 1/16 inch long light brown capsule in late spring or early summer. The small seeds have long, silky hairs that attach to one end like a parachute, which help them spread. Trees form large, dense root-mats on the surface of the soil or in shallow water. They reproduce by stems and twigs breaking off and taking root or by seed, which can be carried up to approximately 60 miles by wind or water.

Habitat: Weeping willow grows in part shade/part sun and full sun. It is adaptable to clay, loam, sand, acidic, or alkaline soils in areas with extended flooding or well-drained. Plants are often found near rivers, lakes, wetlands, parks, forest edges and gardens. Distribution: This species is reported from states shaded on Plants Database map. It is considered invasive in CT, DC, IL, NC, NY, OR, WA, and WV. Ecological Impacts: Weeping willows can spread roots into the bed of a watercourse, slowing the flow of water and reducing aeration. Trees form thickets which divert water outside the main watercourse or channel, causing flooding and erosion where the creek banks are vulnerable. The leaves create a flush of organic matter when they drop in autumn, reducing water quality and available oxygen, and directly threatening aquatic plants and animals. These factors, together with the amount of water willows use, can damage stream health.

Control and Management: • Manual- Hand pull small seedlings; use large machinery such as excavators or

bulldozers to remove larger trees and root systems in dry areas; control of regrowth from stumps, pieces of stems or seeds may be required for 3-5 years after initial control.

• Chemical- It can be effectively controlled using any of several readily available general

use herbicides such as glyphosate. In wet areas use glyphosate approved for aquatic applications. Follow label and state requirements.

• Natural Enemies- Pests include scales, caterpillars, borers, and aphids. The willow is a favored host for the

gypsy moth. References: http://plants.usda.gov, www.nps.gov/plants/alien/map/eucy1.htm, http://images.google.com/images, www-saps.plantsci.cam.ac.uk/trees/willoweep.htm, www.enature.com/fieldguides/detail.asp?recnum=TS0170, http://hort.ufl.edu/trees/SALSPPA.pdf www.deh.gov.au/biodiversity/invasive/publications/salix.html

Produced by the USDA Forest Service, Forest Health Staff, Newtown Square, PA. WOW 12-26-06 Invasive Plants website: http://www.na.fs.fed.us/fhp/invasive_plants

http://images.google.com/imgres?imgurl=http://www.bomengids.nl/pics/Treurwilg__Salix_x_sepulcralis__Weeping_willow%40treurwilg%401%40bladleaf%40img_3485.jpg&imgrefurl=http://www.bomengids.nl/uk/soorten/Treurwilg__Salix_x_sepulcralis__Weeping_willow.html&h=709&w=532&sz=58&hl=en&start=7&tbnid=pkcdSL1W1rPT6M:&tbnh=140&tbnw=105&prev=/images%3Fq%3DSalix%2B%25C3%2597sepulcralis%2B%26svnum%3D10%26hl%3Den%26lr%3D%26sa%3DG

http://plants.usda.gov/java/ClassificationServlet?source=profile&symbol=Salicaceae&display=63

http://www-saps.plantsci.cam.ac.uk/trees/glossary.htm#alternate

http://www-saps.plantsci.cam.ac.uk/trees/glossary.htm#catkin

http://www-saps.plantsci.cam.ac.uk/trees/glossary.htm#dioecious

http://plants.usda.gov/

http://www.nps.gov/plants/alien/map/eucy1.htm

http://images.google.com/images

http://www.enature.com/fieldguides/detail.asp?recnum=TS0170

non-native vegetation control on the lower and …...reach d 1.4 river oaks pathway to montague...

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