F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 54 l l l Issaquah Creek APPENDIX F APPENDIX
WRIA 8 Salmon Habitat Project List Monday, October 02, 2017 Issaquah Creek
APPLICABLE STRATEGIES LEGEND:
Protect and restore Protect and Protect and Protect and restore restore restore cold water marine water and forest cover and Site-Specific ProjectsList sediment quality, floodplain sources and reduce headwater areas connectivity thermal barriers to especially near migration commercial and industrial areas
Protect and Improve juvenile Provide adequate Improve water restore functional and adult survival stream flow quality riparian at the Ballard Locks vegetation
Integrate salmon Restore sediment Protect and Reduce predation recovery priorities into processes necessary restore channel on juvenile local and regional for key life stages complexity migrants and lake- planning, regulations, rearing fry and permitting (SMP, CAO, NPDES, etc.)
Restore shallow Remove (or Restore natural Continue existing and water rearing reduce impacts of) marine shoreline conduct new research, and refuge overwater monitoring, and adaptive habitat structures management on key issues
Reconnect and Remove fish Reconnect Increase awareness enhance creek passage barriers backshore areas and and support for mouths pocket estuaries salmon recovery
Page 1 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Issaquah Creek Riparian Restoration and other Considerations Invasive Species Control Protect and restore riparian habitat throughout Issaquah Creek. Control invasive knotweed and Project other invasive species on a coordinated basis in IC-3-BB priority riparian habitats and areas upstream. Number After initial control is achieved, regularly monitor, Four-Year detect and rapidly respond to any new Project Location Work Plan? infestations. Implement planting with native Riparian Vegetation species in treated areas.
Yes Site-Specific ProjectsList Basinwide
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Lake Sammamish State Park Restoration other Considerations Vast (50 acres within shoreline buffer) and largely Channel is active in this area, and undisturbed area within State Park at mouth of any park development should be Project Issaquah Creek. Former farmland with somewhat conducted so as to allow for IC-R1-1-INS poor habitat conditions: incised channel, extensive continued meandering. Some work Number non-native vegetation. Potential projects include could be done to reduce incision of Four-Year stream, riparian, floodplain, lakeshore and creek and reconnect it with the Project Location Work Plan? wetland restoration on Issaquah Creek, Tibbetts floodplain in the uppermost Floodplain Channel Connectivity Complexity Yes Creek, and along Lake Sammamish lakeshore. portion of the site. State Parks has Issaquah Good connectivity to adjacent restoration projects next phase of strategic planning upstream in City. underway and is interested in Estimated Project Costs restoration along Issaquah Creek and the lakeshore in ways that are Acquisition Restoration Total compatible with recreational uses of the park. Riparian Vegetation
Page 2 of 13 F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 55 APPENDIX F Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 56 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Bush Lane Acquisition and Restoration other Considerations 12.5 acres of Issaquah Creek and North Fork City has interest in this project, but Issaquah Creek floodplain, located between it will need to be compatible with Project confluence of these two streams and Darst Park Costco expansion and a planned IC-R2-1-RB (just north of I-90). Stream, riparian, and extension of 62nd Street across the Number floodplain restoration on 1,200 feet of Issaquah site. A component of this project Four-Year Creek east bank. Project could include stream and (or a separate project) could be Project Location Work Plan? riparian restoration, side channel creation, and relocating the North Fork away Floodplain Riparian Connectivity Vegetation Yes wetland restoration. Existing habitat is poor due to from 221st. Approximately 5.8 Issaquah residential development. Stream/buffer acres are already in public Site-Specific ProjectsList enhancements can be combined with other public ownership. Estimated Project Costs use of upland area of site. Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Issaquah Creek Pickering Reach Restoration other Considerations Located between SE 56th Street and I-90 along Mountains to Sound has treated west bank of Issaquah Creek. Stream restoration some invasives and planted Project along 1,800 feet of the creek within 200-foot portions of this area; but additional IC-R2-2-LB setback. Restoration could include removal of restoration opportunities remain. Number hardened banks, floodplain restoration, side Private property, but City has utility Four-Year channels, and riparian enhancements. Extension of easement that could allow for some Project Location Work Plan? restoration work conducted by City in 1998. restoration work. Floodplain Riparian Connectivity Vegetation Yes Issaquah
Estimated Project Costs Acquisition Restoration Total
Page 3 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Relocation of City Parks Maintenance Facility other Considerations and Restoration of Site Property is at confluence of Issaquah Creek and City of Issaquah has identified a East Fork Issaquah Creek, adjacent to Confluence potential replacement site for the Project Park. Relocation of the maintenance facility and maintenance facility, but funding is IC-R5-1-RB restoration of the stream and buffer offers needed to advance the project Number excellent opportunity to restore important forward. This project is in the City Four-Year sections of these two streams and build on Parks Strategic Plan. Project Location Work Plan? previous restoration efforts. Channel Riparian Complexity Vegetation
No Site-Specific ProjectsList Issaquah
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Issaquah Creek Wildwood Acquisition and other Considerations Restoration Located Between Wildwood Trail and Issaquah Some knotweed removal has Creek along Wildwood Blvd Trail to hatchery occurred. The site has steep slopes Project intake. Private and City ownership. Mature shade and is covered with ivy, which IC-R6-1-LB canopy and native vegetation being lost due to makes restoration potentially very Number English Ivy and other weed infestation. If site is expensive. Site is owned by a Four-Year developable, pursue a restoration easement with partnership with the intent to Project Location Work Plan? private property owners to allow for restoration develop the area; however, there is Riparian Vegetation No focused on retaining the existing shade canopy disagreement about whether the Issaquah through riparian vegetation enhancements on top site is actually developable. of slope of west bank. Estimated Project Costs Acquisition Restoration Total F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 57 APPENDIX F Page 4 of 13 Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 58 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies "Guano Acres" Ingi Johnson Park Restoration other Considerations Ingi Johnson Park is immediately downstream of In the Watershed Company's 2006 the recently-removed fish hatchery intake dam. restoration report, this site scored Project Some restoration was implemented through that high for potential benefit and IC-R6-2-RB project, but opportunities remain for floodplain feasibility. Number restoration, wetland enhancement, side channels, Four-Year and riparian enhancement. Project Location Work Plan? Floodplain Riparian Connectivity Vegetation No Issaquah Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies South Issaquah Creek Greenway Acquisitions other Considerations Large parcels adjacent to the South Issaquah Creek The City of Issaquah purchased Greenway offer additional potential for open several properties, including the Project space preservation, riparian and wetland Fowler and Steiglitz properties, IC-R7-1-BB enhancements, instream restoration, and side totalling 5.18 acres. Lots of Number channels. Includes the Mohl Property, located restoration occurred here from Four-Year immediately downstream of Sycamore Drive on 2000 – 2005 (wood placements and Project Location Work Plan? west bank; and other properties. Explore whether side channels). The area includes Riparian Channel Vegetation Complexity No SE Sycamore Lane can be abandoned and removed wetlands and extensive reed Issaquah as part of additional restoration. canarygrass.
Estimated Project Costs Acquisition Restoration Total
Page 5 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Squak Valley Park South other Considerations Located between the city limits at SE 104th St and Two of the three parcels targeted Squak Valley Park. Install log complexes in the by this project are in city Project main channel and along its banks to encourage ownership. IC-R8-1-RB pool formation, provide protective cover, and Number improve habitat diversity and quality. Restore the Four-Year floodplain and side channel to increase edge Project Location Work Plan? habitat. Implement wetland and riparian Channel Riparian Complexity Vegetation enhancements. Pursue acquisition or of lone
No Site-Specific ProjectsList Issaquah remaining privately held parcel to enable full scale restoration on the right bank. Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Remove Bank Hardening at Issaquah Creek & other Considerations Fifteenmile Creek Remove bank armoring at confluence of Issaquah Sites include expensive homes that Creek and Fifteenmile Creek. would need to be protected. Project IC-R9-1-RB Number Four-Year Project Location Work Plan? Channel Complexity No King County
Estimated Project Costs Acquisition Restoration Total F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 59 APPENDIX F Page 6 of 13 Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 60 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Remove Bank Hardening at Issaquah and other Considerations McDonald Creek Remove bank armoring at the Issaquah Creek Sites include expensive homes that confluence with McDonald Creek. would need to be protected. Project IC-R10-1-BB Number Four-Year Project Location Work Plan? Channel Complexity No King County Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Log Cabin Natural Area Restoration other Considerations Remove non-native plants and plant with native Work is ongoing, being led by King vegetation. Potential for removal of bank County Parks. Have removed Project hardening in upper portion of property. approximately 15 acres of IC-R11-1-BB blackberries and replanted this Number area with approximately 10,000 Four-Year plants over the past 15 years. Project Location Work Plan? Revegetation is mostly complete; Channel Riparian Complexity Vegetation No will add about 500 trees in fall of King County 2017 to the pasture area.
Estimated Project Costs Acquisition Restoration Total
Page 7 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Remove Bank Hardening in Four Creek other Considerations Subdivision Remove bank hardening in subdivision located just Expensive homes would need to be upstream of McDonald Creek confluence, between protected. Project 231st Place SE and 229th Drive SE. IC-R11-2-BB Number Four-Year Project Location Work Plan? Channel Complexity No King County Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Carey/Holder/Issaquah Creek Confluence other Considerations Restoration On the 120 acre site under a King County Some fencing has been built. conservation easement, restore riparian Restoration work remains. Project vegetation, add livestock fencing, and implement IC-R12-1-BB other best management practices for livestock. Number Four-Year Project Location Work Plan? Riparian Vegetation Yes King County
Estimated Project Costs Acquisition Restoration Total F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 61 APPENDIX F Page 8 of 13 Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 62 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Fish Passage at 276th Avenue SE Crossing - other Considerations Carey Creek Partial fish passage barrier. Remove or replace culvert to improve fish passage. Project IC-R13-1-INS Number Four-Year Project Location Work Plan? Passage Barriers No King County Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Fish Passage Improvements at Highway 18 - other Considerations Holder Creek Install a bridge at the Highway 18 crossing to WSDOT culvert subject to culvert eliminate a partial fish passage barrier. injunction. Not on WSDOT’s near- Project term action plan. IC-R13-2-INS Number Four-Year Project Location Work Plan? Passage Barriers No King County
Estimated Project Costs Acquisition Restoration Total
Page 9 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Carey and Holder Creek Headwaters other Considerations Protection Protect existing natural flow regime in the Through the State Trust Land headwaters areas of Carey and Holder creeks, Transfer program, some state DNR Project which are in the Tiger Mountain State Forest and parcels are being transferred to IC-R14-1-BB Taylor Mountain Forest vicinity, by acquiring forest King County Parks or are proposed Number property, development rights/conservation for transfer. Four-Year easements. Also, provide enhanced incentives to Project Location Work Plan? retain and plant forest area environments. Forest Cover
No Site-Specific ProjectsList King County
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Fish Passage Improvement in Fifteenmile other Considerations Creek Improve fish passage at RM 1.5 where there is a WDFW cites marginal benefits due barrier which consists of a bedrock cascade with to impassable falls a short distance Project an abandoned water supply dam on top. upstream. Also, height is 7 meters. IC-4-INS Number Four-Year Project Location Work Plan? Forest Cover No King County
Estimated Project Costs Acquisition Restoration Total F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 63 APPENDIX F Page 10 of 13 Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 64 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Increase Buffers and Restore Riparian Areas - other Considerations North Fork Issaquah Creek Increase stream buffers and restore riparian The portion of the North Fork that vegetation along North Fork Issaquah Creek. goes through the lower portion of Project Lakeside Property has highly IC-5-BB impacted buffers and non- Number conforming uses in close proximity Four-Year to the stream. Project Location Work Plan? Riparian Vegetation No Issaquah Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Fish Passage Improvement near Front other Considerations Street - North Fork Issaquah Creek Improve fish passage at the downstream end of These culverts are undersized and wetland where a culvert is a partial barrier to fish have persistent sedimentation Project passage at low water and near the Front St. problems. New design should direct IC-6-INS interchange by reconfiguring the culverts under channel directly into the wetland Number the road. rather than cross under the road an Four-Year additional two times as it currently Project Location Work Plan? is built. Per WDFW fish passage Passage Barriers No database, this remains a partial fish Issaquah passage barrier.
Estimated Project Costs Acquisition Restoration Total
Page 11 of 13 APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies Wetland Revegetation at Front Street / I-90 other Considerations Interchange - North Fork Issaquah Creek Plant trees in the large wetland near the Front St. This is WSDOT right-of-way; not interchange to shade the creek as it flows through sure what agency/entity takes lead Project this section. on this effort. IC-7-BB Number Four-Year Project Location Work Plan? Riparian Vegetation No Issaquah Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies Reduce Sedimentation Problems from Gravel other Considerations Plant - North Fork Issaquah Creek Explore opportunities for reducing sedimentation City will need to identify specific problems related to the gravel plant. Possible to actions to deal with impacts of Project implement source control and also push for larger gravel plant. IC-8-LB riparian buffers through the gravel plant property. Number Four-Year Project Location Work Plan? Sediment Processes No Issaquah
Estimated Project Costs Acquisition Restoration Total F- l Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan l 10-YEAR UPDATE l 2017 65 APPENDIX F Page 12 of 13 Issaquah Creek F- APPENDIX F Lake Washington/Cedar/Sammamish Watershed (WRIA 8) Chinook Salmon Conservation Plan 10-YEAR UPDATE 2017 66 l l l Issaquah Creek APPENDIX F APPENDIX Opportunities, Constraints, and Description Applicable Strategies North Fork Issaquah Creek Headwater other Considerations Wetlands Protection Protect headwater wetlands in this basin. An important issue in the North Fork watershed is the impact of Project impervious surfaces on base flows IC-1-BB and the lack of water in the Number wetlands. Four-Year Project Location Work Plan? Forest Cover No Issaquah Site-Specific ProjectsList
Estimated Project Costs Acquisition Restoration Total
Opportunities, Constraints, and Description Applicable Strategies East Fork Issaquah Creek Restoration other Considerations Assessment The East Fork provides valuable habitat but is highly urbanized in the lower reaches and passes Project under I-90 numerous times. Investigate potential IC-2-BB restoration project opportunities benefitting Number Chinook. Four-Year Project Location Work Plan? Channel Complexity No Issaquah
Estimated Project Costs Acquisition Restoration Total
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