Zackuse Creek Fish Passage and Stream Restoration Project PUBLIC - - PowerPoint PPT Presentation

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zackuse creek fish passage and stream restoration project
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Zackuse Creek Fish Passage and Stream Restoration Project PUBLIC - - PowerPoint PPT Presentation

Nov 28, 2022 325 likes •632 views

Zackuse Creek Fish Passage and Stream Restoration Project PUBLIC OPEN HOUSE MARCH 29, 2017 Project Goals Improve fishery resources by increasing access to habitat for Lake Sammamish Kokanee and other salmonids Restore cultural

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Zackuse Creek Fish Passage and Stream Restoration Project

PUBLIC OPEN HOUSE MARCH 29, 2017

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Project Goals

  • Improve fishery resources by increasing access to habitat for

Lake Sammamish Kokanee and other salmonids

  • Restore cultural resources and tribal connection to local

streams and lakes

  • Successfully partner with local residents, governments, and

tribes

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Project Objectives

  • Replace the East Lake Sammamish Parkway (ELSP) culvert

with a fish passable culvert

  • Realign and regrade Zackuse Creek upstream of ELSP
  • Provide outreach opportunities with local community
  • Coordinate with King County on the downstream culvert

projects

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Zackuse Creek – Project Map

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Zackuse Creek Characteristics

  • Cultural History
  • Geology
  • Hydrology
  • Topography
  • Land Use
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Zackuse Creek Geology

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Zackuse Creek Photos

Downstream of East Lake Sammamish Shore Lane

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Zackuse Creek Photos

Culvert at East Lake Sammamish Shore Lane

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Zackuse Creek Photos

Downstream of East Lake Sammamish Trail Culvert

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Zackuse Creek Photos

Downstream of East Lake Sammamish Parkway

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Zackuse Creek Photos

Upstream of Culvert at East Lake Sammamish Parkway

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Zackuse Creek Photos

Upstream of East Lake Sammamish Parkway (Ditch)

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Zackuse Creek Photos

Upstream of ditch (Pereyra property)

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Zackuse Creek Photos

400‐ft upstream of ELSP culvert (Pereyra property)

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Zackuse Creek Photos

600‐ft upstream of ELSP culvert (Pereyra property)

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Zackuse Creek Photos

800‐ft upstream of ELSP culvert (Headcut)

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Zackuse Creek Photos

800‐ft upstream of ELSP culvert

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Zackuse Creek Photos

Outlet of culvert at 206th Ave NE and upstream culvert

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Zackuse Creek Photos

200‐ft upstream of 206th Ave NE (north embankment slide 3/25/17)

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Zackuse Creek Photos

Upstream 206th Ave NE

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Zackuse Creek Photos

Channel at Louis Thompson Hill Road and 210th Pl NE (retaining wall slide)

11/15/15 12/14/16

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Zackuse Creek Photos

Zackuse Creek Outfalls

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Zackuse Creek Photos

Zackuse Creek Outfalls

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Zackuse Creek Photos

Zackuse Creek Outfalls

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Fish Passage Culvert Design

  • Conducted field study and measurements of existing system
  • Reviewed previous work and recommendations for culvert replacement size
  • Hosted field meeting with WDFW and Snoqualmie and Muckleshoot tribes
  • Agencies and tribes agreed on culvert design methodology discussed in field
  • A culvert width of 12 feet proposed
  • Next step – culvert construction methods
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Stream Restoration Design

  • Design a stable channel to retain spawning size gravel at design flows
  • Introduce roughness to reduce velocity, direct flows, and provide habitat
  • Review channel bed form options to reduce gradient (ie, chute/pool/run type sequence)
  • Evaluate optimal tie in points for stream re‐alignment to allow maximum habitat restoration
  • Next step – stream restoration layout and design details
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Project Schedule

February/Ongoing Coordinate with Stakeholders and Partners March 29, 2017 Public Open House 1 April 2017 Preliminary design completed and submit for permits May 1, 2017 Update to Sammamish City Council November 2017 Public Open House 2 February 2018 Final Design and Permitting Completed March 2018 Construction Advertisement and Bid Award July – October 2018 Construction November 2018 Project Completed

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Project Partners

  • City of Sammamish
  • King County
  • Kokanee Work Group
  • Snoqualmie Tribe
  • Trout Unlimited
  • Private Property Owners
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Questions