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Springbrook Creek Watershed Evaluation and Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design

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Page 1: Springbrook Creek Watershed Evaluation and …...Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design !!!!! !!!!! (((((New Br oklyn Rd

Springbrook Creek Watershed Evaluation and

Feasibility Project

Appendix III Project 11

Upper Springbrook Protection Project

Conceptual Design

Page 2: Springbrook Creek Watershed Evaluation and …...Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design !!!!! !!!!! (((((New Br oklyn Rd

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New Brooklyn Rd

High School Rd

Sprin

gridg

e Rd

Fletcher Bay Rd

0

AU1

AU2

AU5

AU4 AU6

AU7

AU3

1111

13c

9

2

7

17

16

13a

12

3a

10

3

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14

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13b

86

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13d

StreamsUnk

éé éé ShorelineNon-fish-habitat SeasonalNon-fish-habitat PerennialFish habitat

Stream Crossings% Passable!( Full barrier, 0%!( Partial, 33%!( Partial, % unk!( Partial, 67%!( Unk status!( Non-fish-habitat

0 0.1 0.20.05Miles

Data: City of Bainbridge Island, WildFish Conservancy, Kitsap County,Bainbridge Island Land Trust

Upper SpringbrookProtection ProjectProject3Type

Protection

Project1TypeStormwater managementFish passage improvementIn-stream habitat restorationProtectionRiparian habitat restoration

Project2Type

! ! ! !

! ! ! !

! ! ! !

Fish passage improvement

! ! ! !

! ! ! !

! ! ! !Protection

! ! ! !

! ! ! !Riparian habitat restoration

Assessment UnitsPonds

Springbrook Watershed

= ProjectLocation

Page 3: Springbrook Creek Watershed Evaluation and …...Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design !!!!! !!!!! (((((New Br oklyn Rd

Upper Springbrook Creek Protection Conceptual Design

This project proposes to protect by acquisition nearly 23 acres of mostly undisturbed and undeveloped

forested wetland, stream and associated riprairan habitat in Springbrook Creek Assessment Unit 6 (AU).

During the Springbrook Creek Watershed Assessment the Upper Springbrook Creek tribuatary (SB01-2)

was identified as hosting some of the highest quality stream and wetland conditions within the entire

watershed. Water monitoring indicates temperatures in the stream are of high quality all year round –

the only area within the watershed to meet temperature water quality standards year round.

Coho and cutthroat have been documented

within this reach of the stream and

downstream, and there is excellent potential

for fish rearing habitat within the AU. There is

mature riparian vegetation hydrologically

connected to the stream.

The Upper Springbrook Creek tributary is

characterized by a large wetland complex,

native vegetation which provides shade to the

stream and food for a number of birds and

other animals. The stream width varies from 6

feet in width with a defined chanel to a narrow

approximately 2 foot channel within a large

wetland complex. The stream runs year round. Due to the large undisturbed wetland complex, the

Washington Department of Ecology’s Watershed Characterization identified this AU as particularly

important for provding water recharge and discharge functions thus keeping this functioning wetland

protected is important to overall waterhshed health.

During the Springbrook Creek Watershed Assessment, this property, and adjoining properties

downstream were identified as a high priority for protection.

Specific Goals:

This proposal is to acquire the property from the existing willing landowner (see Landowner

Acknowledgment) for protection purposes and leave the property as is, for the most part, except for

perhaps some well sited foot path for hikers, invasive plant and debris removal over time. There is a full

fish passage barrier culvert on the northwest property boundary. There is an opportunity to remove the

culvert after the acquisition takes place, to improve fish utilization of over .25 miles of stream habitat

above the fish culvert.

There are two separate parcels:

Kitsap County tax parcel 282502-1-005-2006 (20.03 acres)

Kitspa County tax parcel 282502-2-001-2008 (2.96 acres)

Page 4: Springbrook Creek Watershed Evaluation and …...Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design !!!!! !!!!! (((((New Br oklyn Rd

The 2.96 acre parcel had an old home and outbuildings on it which have been removed by the existing

landowner. The conceptual plan does reserve the opportunity to utilize approxiamtely 1.16 acres of

this parecel for flexible uses such as parking for public use of trails or an interpretive kiosk.

In discussing options for protection, the acquisition tool, versus a conservation easement, was chosen

based on discussion with the landowner. The goal would be to have the property acquired by an entity

such at Bainbridge Island Land Trust who is experienced in holding preserve property and who would

would develop a stewardship and management plan for the property which would outline the care

needed to retain and preserve the important stream and wetland functions the property provides to

the entire Springbrook Creek watershed.

Page 5: Springbrook Creek Watershed Evaluation and …...Feasibility Project Appendix III Project 11 Upper Springbrook Protection Project Conceptual Design !!!!! !!!!! (((((New Br oklyn Rd

Poperty Map and Protection Concept