grande ronde river restoration project - la grande, or union soil and water conservation district,...
TRANSCRIPT
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
11
Project Vicinity MapProject Vicinity Map
22
The ProblemsThe Problems
33
The ProblemsThe Problems
Headcut
44
The ProblemsThe Problems
Fish Passage
55
The ProblemsThe Problems
Lack of Quality Pool Habitat
66
The ProblemsThe Problems
High Sediment Input
77
The ProblemsThe Problems
Lack of Large Woody Debris
88
The ProblemsThe Problems
Lack of Riparian Vegetation
99
Project GoalsProject Goals
1010
Project GoalsProject Goals
Headcut StabilizationStabilize Irrigation Diversion FacilityStabilize Channel MorphologyImprove Fish PassagePrevent Stream Bank ErosionVegetate Riparian Zone
1111
Project DescriptionProject Description
1212
Project DescriptionProject Description
Cooperate with landowners to vegetate riparian zones, improving diversity and function, providing shade and preventing stream bank erosion.
1313
Project DescriptionProject Description
Replace the pushup irrigation diversion and stabilize the headcut structure to improve adult and juvenile salmon, steelhead and bull trout passage.
1414
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.
1515
Project DescriptionProject Description
Educate landowners on management practices that will enhance riparian zones.
1616
Project DescriptionProject Description
Pursue Phase II - Next mile downstream to the Island City Bridge
1717
Plate 1Plate 1
1818
Plate 2Plate 2
1919
Plate 3Plate 3
2020
Plate 4Plate 4
2121
Future Without ProjectFuture Without Project
Headcut Could Break Free Resulting in the Following:
2222
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)
2323
FundingFunding
2424
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
2525