SWC2012Projects-Steelhead Haven

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This project built a wood revetment 500 feet from the toe of the Steelhead haven landslide thereby reducing fine sediment inputs into the North Fork Stillaguamish. A sediment retention pond was also constructed to capture surface erosion off of the landslide, also reducing fine sediment inputs into the North Fork Stillaguamish River.

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  • Needs location map. And blurb and sponsor and logo
  • Needs location map. And blurb and sponsor and logo
  • Needs property today photo and blurb and sponsor and logo
  • Needs property today photo and blurb and sponsor and logo
  • SWC2012Projects-Steelhead Haven

    1. 1. www.stillaguamishwatershed.org Dedicated to restoring and maintaining a healthyStillaguamish River Watershed since 1990
    2. 2. The mission of the Stillaguamish Watershed Council(SWC) is to maintain a healthy, functioning Stillaguamish Watershed by providing a local forum in which agencies, organizations, communities, and the public can engage in a collaborative watershed based process of decision making and coordination. This slideshow highlights the work of the SWC www.stillaguamishwatershed.org
    3. 3. Steelhead Haven Fine Sediment Reduction ProjectSponsored by the Stillaguamish Tribe of Indians This project built a wood revetment 500 feet from the toe of the Steelhead haven landslide thereby reducing fine sediment inputs into the North Fork Stillaguamish. A sediment retention pond was also constructed to capture surface erosion off of the landslide, also reducing fine sediment inputs into the NF Stillaguamish. Location
    4. 4. Steelhead Haven Fine Sediment Reduction ProjectSponsored by the Stillaguamish Tribe of Indians Expected Change This project built a wood revetment 500 feet from the toe of the Steelhead haven landslide thereby Log Cribwall Placement reducing fine sediment inputs into the North Fork Stillaguamish. A Expected Channel Migration sediment retention pond was also constructed to Expected Head cut capture surface erosion off of the landslide, also reducing fine sediment inputs into the NF Stillaguamish. Project Site Plan
    5. 5. Steelhead Haven Fine Sediment Reduction ProjectSponsored by the Stillaguamish Tribe of Indians Cribwall 1,300 feet long, 25 feet What the river will see high This project built a wood revetment 500 feet from the toe of the Steelhead haven landslide thereby reducing fine sediment inputs into the North Fork Stillaguamish.
    6. 6. Steelhead Haven Fine Sediment Reduction ProjectSponsored by the Stillaguamish Tribe of Indians This project built a wood revetment 500 feet from the toe of the Steelhead haven landslide thereby reducing fine sediment inputs into the North Fork Stillaguamish. Left: Aerial view of the wood revetment backfilled with wood debris Below: Close up of backfill
    7. 7. Steelhead Haven Fine Sediment Reduction ProjectSponsored by the Stillaguamish Tribe of Indians 20 Acre-feet of storage During the first flooding event the river migrated toward the structure as designedA sediment retention pond was also constructed to capture surfaceerosion off of the landslide, also reducing fine sediment inputs intothe NF Stillaguamish.
    8. 8. For more information about the Stillaguamish Watershed Council visit our website at: www.stillaguamishwatershed.org

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