grande ronde river restoration project - la grande, or union soil and water conservation district,...

Grande Ronde River Restoration Grande Ronde River Restoration Project - La Grande, ORProject - La Grande, OR

Union Soil and Water Conservation District, Union County, City of La Grande and U.S. Army Corps of Engineers

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Project Vicinity MapProject Vicinity Map

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The ProblemsThe Problems

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The ProblemsThe Problems

Headcut

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The ProblemsThe Problems

Fish Passage

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The ProblemsThe Problems

Lack of Quality Pool Habitat

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The ProblemsThe Problems

High Sediment Input

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The ProblemsThe Problems

Lack of Large Woody Debris

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The ProblemsThe Problems

Lack of Riparian Vegetation

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Project GoalsProject Goals

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Project GoalsProject Goals

Headcut StabilizationStabilize Irrigation Diversion FacilityStabilize Channel MorphologyImprove Fish PassagePrevent Stream Bank ErosionVegetate Riparian Zone

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Project DescriptionProject Description

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Project DescriptionProject Description

Cooperate with landowners to vegetate riparian zones, improving diversity and function, providing shade and preventing stream bank erosion.

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Project DescriptionProject Description

Replace the pushup irrigation diversion and stabilize the headcut structure to improve adult and juvenile salmon, steelhead and bull trout passage.

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Project DescriptionProject Description

Place root wads, anchored logs, J-hooks and W-weirs to provide safe migration corridors by reducing channel gradient, prevent channel migration, and provide stream bank erosion protection thereby reducing sedimentation.

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Project DescriptionProject Description

Educate landowners on management practices that will enhance riparian zones.

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Project DescriptionProject Description

Pursue Phase II - Next mile downstream to the Island City Bridge

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Plate 1Plate 1

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Plate 2Plate 2

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Plate 3Plate 3

2020

Plate 4Plate 4

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Future Without ProjectFuture Without Project

Headcut Could Break Free Resulting in the Following:

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Future Without ProjectFuture Without Project

Severe Headward Channel Downcutting Loss of Channel Complexity Continued Riparian Habitat Degradation Loss of Spruce Street Bridge Massive Sediment Movement and Entrapment (gravel bars)

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FundingFunding

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FundingFunding

Feasibility Study, Environmantal Assessment and Specifications (up to August 2001) $250,000

Phase I Construction $3,264,320 U.S. Army Corps of Engineers share -$2,448,240 BPA Request (25% of total) $816,080

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