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King County’s procedures for considering public safety when placing large wood in King County rivers requires that the Department of Natural Resources and Parks develop and maintain a list of projects where large wood will be or is likely to be installed in a King County river or stream. This project list will be updated every year and made available by request and via the county Website or e-mail notifications. For each project, the project manager will develop the following information for use in the public outreach process:

  • Brief project description, including approximate type and amounts of wood expected to be used;
  • Location of project;
  • Primary purpose of the project and its relative importance to the success of County programs and mandates;
  • Project goals and objectives;
  • Existing project site conditions;
  • Type, intensity and seasonality of recreational uses, if known;
  • Intended function of the wood, including identification of how wood meets project goals and objectives;
  • Project status and timing of conceptual design input opportunities; and
  • Timing of planned and completed project construction.
Project managers present information about upcoming projects in a public meeting held in the spring/summer of each year.

Projects in progress

Location: Bear Creek-Doyle, RM 3.25

Description: Place large woody debris in the channel to enhance habitat and excavate side channels to provide off-channel habitat.

Purpose and importance: Project will enhance habitat quality for juvenile Chinook salmon and other salmonid species, including off-channel habitat.

Goals and objectives: To enhance rearing habitat for juvenile Chinook salmon and other salmonid species.

Existing site conditions: The existing channel is overly-simple and lacks cover, complex habitat and off-channel habitat.

Recreational uses, timing, intensity: Bear Creek is too small for recreational floating, but the riparian areas are used for passive recreation (fish and wildlife viewing, etc.).

Intended large wood function: To provide fish cover and velocity refuge during high flows, and scour; to provoke changes to the channel geometry that will provide better habitat conditions.

Project status:

Project manager: Laird O’Rollins

Anticipated construction: Summer 2017

Cedar Rapids Levee Setback Repair Project

Location: Cedar River, RM 7.45, Right Bank

Description: Repair an existing engineered log jam (ELJ) that protects against channel migration. Construction activities include restoring the ELJ to the as-constructed condition by replacing the light, loose riprap and alluvium that were lost from within the ELJ matrix after the 2010 construction. Willow stakes will be installed where fill material is replaced. Bumper logs will be added to the upstream face of the ELJ to reduce hazards to recreationalists.

Purpose and importance: The primary purpose is to repair the existing ELJ to as-constructed condition. Currently, a large portion of the ELJ is porous due to the loss of ballast material from within the ELJ matrix. This condition allows for flow through the ELJ, creating trapping risks to recreationalists. The inclusion of bumper logs on the upstream face of the ELJ will also address these risks.

Goals and objectives: Reconstruct the ELJ to the 2010 as-constructed condition and include permittable features that were not part of the original design, such as bumper logs on the upstream face of the ELJ, to further ensure recreational safety.

Existing site conditions: In 2010, 12 ELJ structures were constructed in the Cedar Rapids reach of the Cedar River to satisfy several project goals, one of which was to discourage migration of the mainstem channel towards setback levees. The ELJs were designed to function as non-porous structures, and although originally constructed 20 to 50 feet landward of the channel bank at the time, the 12 ELJ structures were designed to ultimately fully engage with the river channel. However, soon after the 2010 construction, unusual hydrologic conditions caused the river to flow immediately adjacent to one of the ELJs (ELJ 6), resulting in the loss of fill material and creating porous conditions.

Recreational uses, timing, intensity: The project is located in a reach that had the second highest rate of recreational boater use according to a 2010 study by King County. The reach with the highest rate of use is immediately downstream of the project. During the 2010 observation period for the study, more than 2,000 floaters passed through the reach between the Union 76 Station on Maple Valley Highway and Carco Park in Renton, with almost 400 on the busiest day. Recreational use on the Cedar River is highest between Memorial Day and Labor Day.

Intended large wood function: The bumper logs will principally have a hydraulic function. The bumper logs will reduce risks to recreational boaters that result from the way flows sweep along the upstream face of ELJ 6. The bumper logs will create a relatively smooth and continuous facing on the ELJ, preventing recreational users from getting snared by the ELJ. The placed wood meets the repair project's objectives of reducing risks to recreational boaters.

Project status: Design and permitting complete (July 2017)

Project manager: Jay Smith

Anticipated construction: August 2017

Countyline Levee Setback

Location: White River, RM 5.0-6.3, Left Bank

Description: Remove 4,100 linear feet of existing levee and rock revetment. Construct 5,780 linear feet of engineered log biorevetment, four bank deflector engineered logjams, and one apex engineered logjam along the eastern edge of the existing wetland. Construct three apex engineered logjams in the northern portion of the wetland. Construct 6,000 linear feet of setback levee behind the biorevetment (from the A Street/BNSF bridges to the 8th Street/Stewart Road bridge).

Purpose and importance: The project accomplishes objectives of the adopted 2006 King County Flood Hazard Management Plan, including reducing risk to public safety and damage to public infrastructure and private structures. The project meets the goals of the Salmon Habitat Protection and Restoration Strategy for the Puyallup and Chambers/Clover Creek Watersheds.

Goals and objectives: Reduce existing flood hazards by increasing flood conveyance and storage capacity in the adjacent floodplain; restore riverine processes and functions within the project area to enhance salmonid rearing habitat, in particular spring and fall Chinook, coho, and steelhead; and design and construct a project that best meets these goals by using the most cost-effective means available.

Existing site conditions: The project site is located on the alluvial fan of the lower White River in the vicinity of the cities of Pacific and Sumner. Levees and revetments constructed as early as 1914 have disconnected the river from the adjacent floodplain and concentrated sediment deposition within the active channel, thereby reducing conveyance and increasing flood hazards.

Recreational uses, timing, intensity: River recreational use in the project reach is limited due to high turbidity/ limited visibility, and cold temperatures. Recreational use includes kayaking, fishing, boating, and occasional rafting. Active recreation at City of Pacific Park includes river access, fishing, and wading. The existing left bank levee is used for passive recreational walking and hiking.

Intended large wood function: The primary functions of the wood installations will be to protect adjacent properties while improving fish habitat. The biorevetment will prevent bank erosion beyond the existing wetland edge. The bank engineered logjams will be integrated into the biorevetment and will function to deflect flows away from the setback levee. The three engineered logjams at the north end of the wetland will deflect and split flow coming into the project site.

Project Status: Permitting is complete.

Project manager: Chris Brummer

Anticipated construction: 2016

Lower Russell Levee Setback

Location: Green River, RM 17.85 - 19.25, right bank

Description: Replace an existing system of levees and revetments, construct a floodwall, and setback the levee from the river. The project will integrate existing road, trail and park amenities and enhance existing recreational opportunities.

Purpose and importance: The project provides flood protection benefiting the lower Green River valley and the communities of Kent, Tukwila and Renton.

Goals and objectives: Construct a flood protection system that balances policy directives regarding flood protection (e.g., flow containment, scour protection, stability, and vegetation maintenance), habitat restoration, and recreational use.

Existing site conditions: The existing, aging levee system was constructed in the early1960s and does not meet current engineering design standards.

Recreational uses, timing, intensity: Low use for floating, boating and fishing.

Intended large wood function: To provide fish cover and velocity refuge during high flows, and scour; provide native riparian vegetation, including trees, to reduce water temperature, stabilize streambanks, and create overhanging cover; and to recruit wood in the future.

Project status:

Project manager: Erik Peters

Anticipated construction: 2019


 

Porter Reach Restoration Project

Location: Middle Green River, River Mile 34, left bank

Description: The Porter Levee Setback project will remove approximately 800 lineal feet of existing training levee, and constructs, 1,000-foot backwater channel, one large wood deflector jam, six floodplain jams, 500 feet of bank roughening structures, and 900 feet of new levee along an elevated Green Valley Road.

Purpose and importance: Project is a prioritized action to implement the WRIA 9 Salmon Recovery Plan recommendations for the Middle Green River. This reach was also identified as a priority in the MGR Blueprint, the Ecosystem Restoration Plan, and the 2012 Middle Green River feasibility study. The expected outcome is restored salmon habitat.

Goals and objectives: To restore habitat-forming processes in the river floodplain that will improve rearing habitat for fall Green River Chinook salmon. The project will also improve flood control features and prevent river migration into neighboring properties.

Existing site conditions: The Porter Levee is a training levee. Its primary function is to confine the river to its current location. Floodplain landward of the levee is mixture of deciduous forest, open reed canarygrass field and two historic side channels.

Recreational uses, timing, intensity: A variety of recreational users and crafts year-around, but with more intensive use upstream of project location and during warm summer days. WDFW access and parking located downstream of project on left bank.

Intended large wood function: Bank stability and fish habitat.

Project Status:

Project manager: Fauna Nopp

Anticipated construction: Summer 2017

Project Name: Sammamish River Bank Repairs

Location: Sammamish River, RM 4.7 – 4.9, Right Bank  

Description: Two locations along the right bank of the Sammamish River (RM 4.7-4.9) in Bothell, upstream of the I-405 overpass have been identified as over-steepened and is threatening the integrity of the adjacent Sammamish River Trail. The Sammamish River is a US Army Corps of Engineers (USACE) facility (Sammamish River Flood Control Facility). The King County River and Floodplain Management Section is responsible to USACE for the maintenance of the facility, and supports King County Parks in protection of regional trail systems.

Both sites will involve bank reshaping and installation of native woody vegetation plantings to establish a stable slope condition. In addition, the east site will also include the use of large woody material for bank and toe protection.  The Project will require local realignment of the existing Sammamish River Trail at both sites. The Washington State Department of Transportation maintenance facility underneath I-405 is adjacent to the project area, and will be used to provide access to the site for all construction equipment.      

Purpose and importance: This primary objective of this project is to provide stabilization of the bank in the locations of identified failure. This project is necessary to limit the potential for further failure of the bank and possible failure of the Sammamish River Trail; the project will provide a greater level of safety for trail users. In addition, the project will provide maintenance to the Sammamish River Flood Control Facility. Recent further damage to the banks in both project site locations has bolstered the importance of this project to repair the federal facility and support in protection of the regional trail system.        

Goals and Objectives: The objectives of the project consist of the re-stabilization of two sections of the right bank of the Sammamish River, provide habitat enhancement for project permit required mitigation, develop a streamlined design alternative that can work within existing programmatic permits, serve as a model for future small bank repair projects along the Sammamish River, prevent any hydraulic impact on the conveyance capacity of the channel, and develop a design consistent with Sammamish River Corridor Plan and WRIA 8 Salmon Recovery Plan.    

Existing site conditions: Existing levee system has eroded and river bank is receding towards Sammamish River Trail.

Recreational uses, timing, intensity: Low use for watercraft (canoes and kayaks) and fishing.

Intended large wood function: The east site is situated along a bend in the river, and is thus more likely to experience toe erosion.  The intended function of Large Wood at this project site will be to provide protection for the bank against toe erosion.

Project manager: Dan Heckendorf

Anticipated construction: 2018


Scott Property, Judd Creek Habitat Enhancement Small Habitat Restoration Project

Location: The project is located on Vashon Island at 10375 SW 225th Street and at the mouth of Judd Creek in Quartermaster Harbor.

Description: The project has both stream and estuary components. The project will enhance 550 feet of Judd Creek and 400 feet of shoreline in the Judd creek estuary by placing large and small wood debris.

Purpose and importance: The purpose of the project is to restore natural habitat forming processes and enhance habitat conditions for Chinook, Coho and chum salmon, forage fish, aquatic and marine organisms by placing woody debris. The restoration of the mouth of Judd Creek is a priority recommendation by the WRIA 9 technical committee, and restoration of this parcel is part of action NS 17 in the WRIA 9 Salmon Habitat Plan. 

Goals and objectives: Restore natural habitat forming processes by placing large and small woody debris into Judd creek and the Judd Creek estuary. Promote long term stewardship of Judd creek and the Judd Creek estuary by coordinating with stakeholders. Avoid and minimize impacts to cultural resources.

Existing site conditions: The property is owned and managed by the Vashon Maury Island Land trust for Open Space. King County holds a conservation easement on the property. The previous property owners maintains a lease on the property. The Tide Lands in the estuary are privately owned. 

Recreational uses, timing, intensity: Recreational use of the project area is for passive recreation. In the steam reach, Judd Creek is wadable but does not have sufficient flow for boating. In the estuary, recreation is limited to small boats with minimal draft, and then only at high tide. The wood placements will not exclude recreational use of the estuary.

Intended large wood function: The wood placements are designed to mimic what was naturally and historically more common on Puget Sound shores and streams. Woody debris provides structure, cover and hydraulic complexity in streams and provides structure, cover and substrate for marine organisms and spawning forage fish that are an important and limited resource for Chinook salmon.

Project status: Design and permitting complete.

Project manager: Paul Adler

Anticipated construction: Summer 2015

Teufel Nursery - Green River Corridor Mitigation Site

Location: Green River, Left Bank, RM 19.9-20.8

Description: 85 logs will be placed at the site along with the planting of 1,046 native plants within 150 feet of the Green River.

Purpose and importance: The project is required mitigation for previously completed work to clear trees and vegetation along Green River levees in the City of Kent to maintain USACE PL-8499 eligibility in 2009.

Goals and objectives: Mitigate for impacts due to tree cutting on lower Green River levees in 2009; interact with sediments and river flows to moderate channel migration rates and channel geometry; provide cover and refuge locally for adult and juvenile salmonids.

Existing site conditions: Large site previously occupied by plant nursery.

Recreational uses, timing, intensity: Low to moderate use for floating, boating and fishing.

Intended large wood function: To restore ecological functions associated with wood being located in the floodplain. Design is underway.

Project status as of March 2017:

Project manager: Jennifer Rice

Anticipated construction: Summer 2018

Tolt Pipeline Protection Project 

Location: Snoqualmie River near Duvall.

Description: Reconstruction of failing lower end of the Winkleman Revetment.

Purpose and importance: High priority project to protect against river hazard.

Goals and objectives: Stop bank erosion threatening the City of Seattle Tolt River Water Supply pipeline in a manner consistent with Flood Hazard Management Plan goals and objectives.

Existing site conditions: Previous revetment has eroded and river bank is receding toward pipeline.

Recreational uses, timing, intensity: Recreational use is very low.

Intended large wood function: Stabilize bank and improve ecological conditions.

Project status as of March 2017:

Project manager: Craig Garric

Anticipated construction: Summer 2017

Projects completed

Mitigation for hazard log repositioning, May 2014

Location: Snoqualmie River downstream of Fall City.

Description: Place two logs on Aldair Levee.

Purpose and importance: The King County River and Floodplain Management Section cut and repositioned large wood at approximately River Mile 36 in response to a report from the sheriff’s office (dated May 14, 2014). RFMS obtained a permit from the Washington State Dept. of Fish and Wildlife to do the work that requires large wood placement elsewhere as mitigation.

Goals and objectives: The project objective is to meet a permit requirement for the hazard wood alteration upstream.

Existing site conditions: The site and reach have been constrained by levees on both banks. The site where King County plans to place the two logs is on the Aldair Levee, across the river from the Upper Carlson project, where river widening and channel migration is expected to occur in the coming years.

Recreational uses, timing, intensity: River recreation studies indicate most people using the river for recreation take out at Fall City. The level of recreational use in the project area is low. During a pilot study, an average of 220 to 302 people recreated on the river upstream of Fall City compared to an average of seven per day downstream.

Intended large wood function: Fish habitat.

Project Status:

Project manager: Phyllis Meyers

Project completed: 2015

Project name: Belmondo Revetment Enhancement Project

Location: Cedar River RM 9.5-10.8

Description: Reconstructed 370 linear feet of an eroding revetment facility with vegetated geogrids, two engineered log jams and two boulder clusters.

Purpose and importance: The project enhanced and extended an existing bank protection facility that protects s regional trail, data cable, and state highway.

Goals and objectives: To continue and complete the bank stabilization and flood control that was initiated with the emergency repair performed in January 2009.

Recreational uses, timing, intensity: The trail has moderate year-round use by bicyclists. The river has moderate seasonal use by floaters, boaters, and fishermen.

Intended large wood function: The large wood and habitat structures will increase the quantity and quality of aquatic and riparian habitat and provide mitigation for impacts to aquatic habitat associated with the Cedar Rapids project.

Project manager: Mason Bowles

Completed: 2013

Project name: Cedar Rapids Repair

Location: Cedar River RM 7.3-7.8

Description: Repaired/reconstructed a stable setback levee; modified the emergency repair work done to comply with permit requirements; and managed natural large wood recruited to site during flood.

Purpose and importance: To provide ongoing flood protection to homes and infrastructure located outside the project area, comply with permit requirements, and address public safety needs.

Goals and objectives: Eighty linear feet of emergency repair constructed in January 2011.

Recreational uses, timing, intensity: Moderate use by floaters, boaters, and fishermen.

Project manager: John Engel

Completed: 2011

Project name: Cedar River Trail Site 2B

Location: Cedar River RM 6.5 Left Bank

Description: Reconstructed 100 linear feet of the eroded facility with rock, vegetated geogrids and six pieces of large wood.

Purpose and importance: The project maintains an existing bank protection facility that protects Cedar River Trail and Highway 169.

Goals and objectives: The project goal was to repair damage to the facility and provide mitigation for the site disturbance.

Recreational uses, timing, intensity: Moderate use by floaters, boaters, and fishermen.

Intended large wood function: Create bank stability and fish habitat.

Project manager: Kate Akyuz

Completed: 2010

Clough Creek Off-Channel Sediment Facility

Location: The project is located near North Bend at the intersection of 415th Way Southeast and Southeast 142nd Street.

Description: The project included the purchase and demolition of a home; creation of a sediment facility on the site; and stabilization of the stream bank using wood, rock and native plantings.

Purpose and importance: The purpose of the project was to create a sediment facility next to the stream and to collect excessive sediment and reduce downstream flooding. Flooding, erosion and sediment deposition impacts roads, residences and utilities.

Goals and objectives: The main goal of the project was to reduce the amount of excessive sediment in the stream to reduce overbank flood events which have damaged homes, yards, buildings, roads, and utility infrastructure. The project also removed residents from a potentially dangerous location and improved the aquatic environment.

Recreational uses, timing, intensity: Recreational use of the project area is for passive recreation. In the stream reach, Clough Creek is wadeable but does not have sufficient flow for boating.

Intended large wood function: The wood placements are designed to protect the streambank from erosion and mimic what was naturally and historically more common on streams. Woody debris provides structure, cover and hydraulic complexity in streams and provides structure, cover and substrate for aquatic organisms.

Project manager: Wendy Kara

Elliott Bridge Reach Off-Channel Habitat and Floodplain Reconnection Project Phase 2

Location: Cedar River at River Miles 5.2 to 5.6, just downstream of the 154th Place Southeast Bridge, on the north bank.

Description: Construction of an engineered log jam on the margin of the mainstem channel to create a scour pool and instream cover for adult salmon.

Purpose and importance: To provide habitat benefits to salmon as mitigation for impacts from construction of the SR 520 Bridge Replacement Project.

Goals and objectives:

  • Construct an engineered log jam in the mainstem Cedar River to create a scour pool and satisfy mitigation obligations transferred to King County from the WSDOT SR 520 project (external link).
  • Address potential impacts to recreational safety.
  • Maintain current level of flood hazard protection to adjacent properties.
  • Implement a project that is compatible with future reach-wide habitat and flood hazard reduction projects.

Recreational uses, timing, intensity: River recreation studies indicate that this reach of the Cedar River is among the most heavily used by recreational boaters, mostly during the summer.

Intended large wood function: Fish habitat.

Project manager: Jon Hansen

Completed: 2016

Project name: Fenster 2B Revetment Setback

Location: Left bank of the Green River at RM 31.8 within the City of Auburn.

Description: Removed approximately 500 linear feet of rock bank armoring from the left bank of the Green River and constructed a 900 foot long buried setback revetment; installed three buried wood structures in the floodplain between the buried setback revetment and the present river bank; and another along the downstream end of he buried setback revetment. Both large cottonwood trees and shorter conifer logs were used in the buried log structures. No wood was placed directly in the channel of the Green River.

Purpose and importance: The project allows natural river processes to form more complex habitat for recovering salmon populations while protecting neighboring properties from river migration.

Goals and objectives: Restore habitat forming processes and improve flood conveyance of the local reach by widening the channel cross-section; slow floodwater velocities, thereby reducing erosion, and increasing refuge from flooding for juvenile salmonids.

Recreational uses, timing, intensity: The reach is used by recreational tubers, floaters and fishermen. Most floating activities occur during the summer months, while fishing occurs mostly in the autumn months.

Intended large wood function: The buried wood structures will provide habitat benefits by increasing the complexity and quality of bank and instream fish habitat as the bank retreats.

Project manager: Laird O’Rollins

Completed: 2014

Project name: Fenster Log Placement Mitigation site at the Green River Natural Area

Location: Green River Natural Area Open Space at River Mile 38.0 on the Green River

Description: Seventy-nine coniferous logs with rootwads were placed into an approximately 360 foot long reach of an aquatic side-channel of the Green River. This project location was chosen after extensive design and modeling of instream wood placement alternatives at the original project site (Fenster Park in Auburn at RM 31.9 on the left bank of the Green River) illustrated unacceptable safety risks to recreational river users that could not be overcome by project design changes at that location.

Purpose and importance: The 79 pieces of large wood placed in this location fulfill several permitting requirements.

  1. Thirty-one pieces were original mitigation requirements due to trees cut on the riverward side of the Dykstra Levee in Auburn as part of vegetation maintenance requirements of the U.S. Army Corps of Engineers for levees enrolled in the PL-8499 program in 2009;
  2. Sixteen are additional pieces required by the Washington State Department of Fish and Wildlife for placing the wood in the Middle Green River instead of the Lower Green River where the trees were cut; and
  3. Thirty-one pieces of wood replace part of the 59 pieces removed at the Fenster 2A project site in Auburn, which was removed because bank retreat had stranded wood mid-channel thereby creating a hazard to recreational river users.
Goals and objectives: Project goals were to fulfill permit-related instream log placement mitigation requirements. The logs will also locally provide cover and refuge for adult and juvenile salmonids.

Recreational uses, timing, intensity: The side channel is not used by the recreational boating or swimming community. It is occasionally used for fishing. The project is not expected to negatively impact recreational river users.

Intended large wood function: To restore ecological functions associated with wood being located in the floodplain.

Contact: Fatin Kara

Completed: 2015

Project name: Fenster Log Placement Mitigation site at Fenster Park

Location: Fenster Park Green River, left bank, RM 31.9-32.0

Description: Twenty-eight pieces of large wood were placed in the floodplain, outside the active river channel.

Purpose and importance: The project included 28 pieces of wood that were removed at the Fenster 2A project site because the bank retreat had stranded wood mid-channel, thereby creating a hazard to recreational river users.
 
Goals and objectives: To satisfy permit requirements established as a condition of approval for removal of the instream logs.

Recreational uses, timing, intensity: Recreational river users should not be impacted by the placement of wood in this location.

Intended large wood function: To restore ecological functions associated with wood being located in the floodplain.

Contact: Fatin Kara

Completed: 2015

Project name: Foster Golf Course Instream Log Placement Mitigation Site

Location: Duwamish River, right bank, RM 10.25-10.3

Description: Thirteen logs were secured to wooden pilings driven along an eroded portion of the riverbank at the Tukwila Foster Golf Course.

Purpose and importance: The project was required mitigation for previously completed levee clearing of trees and other vegetation. It also supplements an existing habitat restoration and levee setback project constructed a short distance downstream in 2008.
 
Goals and objectives: To mitigate for impacts due to tree cutting on the lower Green River levees in 2009; to interact with sediments and river flows to moderate channel migration rates and channel geometry; and to provide cover and refuge for adult and juvenile salmonids.

Recreational uses, timing, intensity: Extremely low recreational use; occasional canoeing or fishing; and constant golf play present upslope.

Intended large wood function: To restore ecological functions associated with wood being located in the floodplain.

Contact: Fatin Kara

Completed: 2015

Project name: Harris Creek Fish Passage Restoration

Location Harris Creek at the outfall of the Northeast Stossel Creek Way culvert and Northeast 138th Place

Description: A fishway located in Harris Creek was deteriorating and a barrier to upstream fish passage. The project removed the 25-foot long fish passage barrier at the downstream end of the Northeast Stossel Creek Way culvert and installed a 90-foot long roughened channel of well-graded bed mixture and logs.

Purpose and importance: The Harris Creek fish passage barrier was prioritized in an assessment of fish barriers within the Snoqualmie watershed that was conducted by Wild Fish Conservancy.

Goals and objectives: The goal of the project was to provide unimpeded fish passage to more than four miles of upstream habitat in Harris Creek and its tributaries.

Recreational uses, timing, intensity: The project is on private property and there are no adjacent trails or other passive recreation uses/features nearby. The adjacent land use is rural residential properties and open space parcels. The creek, especially during the typical recreational season, has only small flows. No recreational uses are known at this site.

Intended large wood function: The purpose of the project was to provide fish passage in a self-sustaining channel and restore natural processes.

Project manager: Carolyn Butchart

Completed: 2015

Project name: Herzman Levee Repair

Location: Cedar River RM 6.6 right bank

Description: Reconstructed 270 linear feet of the eroded facility with rock, vegetated geogrids, and six pieces of large wood.

Purpose and importance: To maintain an existing bank protection facility.

Goals and objectives: To repair damage to the facility and provide mitigation for the site disturbance.

Recreational uses, timing, intensity: Moderate use by floaters, boaters, and fishermen.

Intended large wood function: Bank stability and fish habitat.

Project manager: Wes Kameda

Completed: 2010

Project name: Klapp Property Habitat Restoration Project

Location At the confluence of Mackey and Bear Creeks, near Northeast 106th Street and Avondale Road Northeast.

Description: Removed bank armoring from Mackey Creek and re-graded the channel banks. Connect Mackey Creek with adjacent wetland and place woody debris in Mackey Creek and adjacent wetland to improve habitat.

Purpose and importance: Improvement of salmon habitat, including Chinook salmon rearing habitat, in the Bear Creek Basin is a high priority of the WRIA 8 Salmon Recovery Plan.

Goals and objectives: Remove placed bank armor; regrade channel banks to form a compound channel; connect an adjacent wetland to the stream system; provide salmon rearing habitat off of the Bear Creek channel; and revegetate the site with native plant species.

Recreational uses, timing, intensity: Recreational use is very low. Neither Bear Creek nor Mackey Creek convey sufficient flows for instream recreation.

Intended large wood function: Improve instream habitat complexity and provide channel roughness.

Project manager: Laird O'Rollins

Completed: 2015

Project name: Long Marsh Creek Drainage Improvement

Location: Long Marsh Creek at May Creek confluence.

Description: Sediment removal from channel.

Purpose and importance: Improve flow capacity of stream channel and reduce inundation of surrounding properties.

Goals and objectives: Woody debris and native plants were installed in and around Long Marsh Creek, helping to restore instream habitat.

Recreational uses, timing, intensity: No use by floaters, boaters, or fishermen.

Intended large wood function: Bank stability and fish habitat.

Project manager: Wes Kameda

Completed: 2014

Project name: May Creek Drainage Improvement

Location: May Creek at 148th Avenue Southeast

Description: Sediment removed from the channel.

Purpose and importance: Improve flow capacity of stream channel and reduce inundation of surrounding properties.

Goals and objectives: Woody debris and native plants were installed around May Creek, helping to restore habitat.

Recreational uses, timing, intensity: No use by floaters, boaters, or fishermen.

Intended large wood function: Bank stability and fish habitat.

Project manager: Wes Kameda

Completed: 2014

Project name: McElhoe Pearson Restoration Project

Location: Snoqualmie River, Right Bank, RM 23.1-23.3

Description: Levee breach and channel excavation with setback flood protection. Nine pieces of large wood were placed in backwater area. A dozen or more small trees were placed in floodplain.

Purpose and importance: This project will enhance rearing and refuge habitat for endangered Chinook in the Snoqualmie River and reduce flood facility maintenance requirements.

Goals and objectives: Restore floodplain connectivity by breaching the confining levee.

Recreational uses, timing, intensity: Moderate use by floaters, boaters, and fishermen.

Intended large wood function: Large wood in the backwater channel provides habitat value and meets the Washington State Department of Transportation mitigation need. Placing felled trees in floodplain provide habitat value and reduces hauling cost.

Project manager: Fauna Nopp

Completed: 2012

Project name: Rainbow Bend Levee Removal and Floodplain Reconnection

Location: Cedar River RM 11.2 and 11.5

Description: King County and Seattle acquired frequently flooded properties, removed existing homes and related improvements and plans to remove approximately 900 feet of levee and revetment. The project also included grading to reconnect historic side channels and/or encourage side channel formation, the addition of floodplain roughness (large woody debris clusters), and planting native vegetation to restore a more natural floodplain community.

Purpose and importance: The project is identified in the Flood Hazard Reduction Plan to reduce flood hazards and long-term maintenance via buyouts and levee removal. The WRIA 8 Chinook Salmon Conservation Plan also identifies the project as an important component to salmon recovery in the Cedar River.

Goals and objectives: To restore river processes that create sustainable off channel rearing and refuge habitat for Chinook and other salmonid species; restore floodplain connectivity, increasing habitat complexity and hydraulic diversity; maximize habitat availability across the range of flow levels while minimizing the potential for fish stranding; provide overall flood relief to reach - lower elevations and velocities; and eliminate the need for long term facility maintenance and emergency response.

Recreational uses, timing, intensity: This reach of the river had an estimated 250-500 floaters in 2010 based on data collected for the Cedar River Recreational Study.

Intended large wood function: Large wood was used within the floodplain to increase roughness and limit the potential for broad, shallow sheet flow across the site. No wood was placed within the river's mainstem.

Project manager:  Jon Hansen

Completed: 2013

Project name: Reddington Levee Setback and Extension Project

Location: Green River, RM 28.2 - 29.5, left bank

Description: Removed 4,800 feet of existing levee along the riverbank and constructed a 6,600 feet levee setback from the river.

Purpose and importance: To provide flood protection benefiting property valued at $680M (2009 assessed values).

Goals and objectives: To improve flood protection for Auburn and the Green River valley and riparian processes and functions for listed endangered species.

Recreational uses, timing, intensity: Low use by floaters, boaters and fishermen.

Intended large wood function: Large wood will provide levee toe scour protection and river edge roughening for riparian habitat.

Project manager: Erik Peters

Completed: 2013

Project name: Singer Judd Creek Pond Enhancement

Location: Judd Creek

Description: The project involved sealing an old culvert that presently serves as the pond’s outflow and creating a new channel connecting the south end of Singer Pond to Judd Creek. Woody debris was placed in Judd Creek and consist of 40 to 60 logs, 10 to 12 inches in diameter and 20 to 25 feet in length.

Purpose and importance: To improve water quality and create habitat for the Judd Creek basin and Paradise Valley. Both the pond and the new channel will be planted with native plants and emergent vegetation.

Goals and objectives: Woody debris and native plants will be installed in and around Judd Creek, helping to restore instream habitat and degraded riparian areas

Existing conditions: Degraded riparian land due to grazing and agriculture.

Recreational uses, timing, intensity: None, other than hiking on nearby trails.

Intended large wood function: Bank stability and fish habitat.

Project manager: Cody Toal

Completed: 2011

Project name: Sinnema Quaale Upper Revetment analysis and repair project

Location: Snoqualmie River between Carnation and Duvall.

Description: Reconstruction of failing upper end of revetment.

Purpose and importance: High priority project to protect against river hazard.

Goals and objectives: Interrupt bank erosion threatening SR 203 and the Snoqualmie Valley Trail in a manner consistent with the Flood Hazard Management Plan goals and objectives.

Recreational uses, timing, intensity: Recreational use is very low.

Intended large wood function: Stabilize bank and improve ecological conditions.

Project manager: Chase Barton

Completed: 2016

Location: Snoqualmie River, Right Bank, RM 23.1-23.3

Description: Levee breach and channel excavation with setback flood protection. Nine pieces of large wood placed in backwater area. A dozen or more small trees placed in floodplain.

Purpose and importance: To enhance rearing and refuge habitat for endangered Chinook in the Snoqualmie River and reduce flood facility maintenance requirements.

Goals and objectives: Restore floodplain connectivity by breaching confining levee.

Recreational uses, timing, intensity: Moderate use by floaters, boaters, and fishermen.

Intended large wood function: Large wood provides habitat value and meets Washington State Department of Transportation mitigation needs. Placing felled trees in the floodplain provides habitat value and reduces hauling cost.

Project manager: Fauna Nopp

Completed: 2012

Project name: Tate Creek Drainage Improvement

Location: Tate Creek at North Fork Road Southeast

Description: Sediment removal from the river channel.

Purpose and importance: Improve flow capacity of stream channel and reduce inundation of surrounding properties.

Goals and objectives: Large wood was installed to reduce erosion on banks of channel.

Existing conditions: The project was an emergency response to a beaver dam break and flooding outside of the channel.

Recreational uses, timing, intensity: Low or no use by floaters, boaters, fishermen.

Intended large wood function:  Bank stability and fish habitat.

Project manager: Shannon Kelly

Completed: 2011

Project name: Upper Carlson Floodplain Restoration Project

Location: Snoqualmie River, RM 33, right bank

Description: Removed 1,600 linear feet of existing levee and associated toe rock along the right bank. Construct 1,500 linear feet setback revetment, including several engineered log structures within the right bank floodplain adjacent to Neal Road.

Purpose and importance: This project is a prioritized action to implement Salmon Recovery Plan recommendations for the Fall City Reach of the Snoqualmie River. The Fall City Reach has been identified as one of the most important and productive reaches in the Snoqualmie.

Goals and objectives: To reconnect the Snoqualmie River to the floodplain and associated side channels and restore channel and floodplain processes, including: channel widening, channel migration, large wood recruitment and retention and natural distribution of sediment throughout the reach.

Recreational uses, timing, intensity: There are a wide variety of recreational users and crafts year-around, but with more intensive use during warm summer days. There is a Washington Sate Department of Fish and Wildlife access and parking is located on the downstream end of the project site.

Intended large wood function: Large wood was used in bank protection structures on the right bank along Neal road and in the floodplain adjacent to the existing levee. Along Neal road, a mix of large logs, driven piles, and engineered logjams was incorporated in the design to improve the reliability of existing and new bank protection measures while providing more complex, higher quality fish habitat. In the floodplain, upon removal of the levee, large existing trees will be recruited to the river and dramatically improve the quality of mainstem edge habitat along the right bank.

Project manager: Dan Eastman

Completed: 2014

For more information about projects with large wood installations, please contact Laird O'Rollins, ecologist, WLR Ecological Services and Engineering Services Unit.