springbrook creek watershed evaluation and …...feasibility project appendix iii project 11 upper...
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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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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
4
14
15
13b
86
5
1
18
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
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Fish passage improvement
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! ! ! !Protection
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! ! ! !Riparian habitat restoration
Assessment UnitsPonds
Springbrook Watershed
= ProjectLocation
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)
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.
Poperty Map and Protection Concept
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