Dredged Material Management Plan and Environmental Impact Statement. Mcnary Reservoir and Lower Snake River Reservoirs. Appendix O PDF Download

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Dredged Material Management Plan and Environmental Impact Statement. Mcnary Reservoir and Lower Snake River Reservoirs. Appendix O

Dredged Material Management Plan and Environmental Impact Statement. Mcnary Reservoir and Lower Snake River Reservoirs. Appendix O PDF Author:
Publisher:
ISBN: 9781423505235
Category :
Languages : en
Pages : 143

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Book Description
This final Dredged Material Management Plan/Environmental Impact Statement (DMMP/EIS) presents the Corps of Engineers' programmatic plan for maintenance of the authorized navigation channel and certain publicly owned facilities in the lower Snake River reservoirs between Lewiston, Idaho and the Columbia River, and McNary reservoir on the Columbia River for 20 years; for management of dredged material from these reservoirs; and for maintenance of flow conveyance capacity at the most upstream extent of the Lower Granite reservoir for the remaining economic life of the darn and reservoir project (to year 2074). The Corps, along with the U.S. Environmental Protection Agency, analyzed four alternatives for this Final DMMP/EIS: Alternative 1 - No Action (No Change) - Maintenance Dredging With In-Water Disposal; Alternative 2 - Maintenance Dredging With In-Water Disposal to Create Fish Habitat and a 3-Foot Levee Raise; Alternative 3 - Maintenance Dredging With Upland Disposal and a 3- Foot Levee Raise; and Alternative 4 - Maintenance Dredging With Beneficial Use 0 Dredged Material and a 3-Foot Levee Raise (Recommended Plan/Preferred Alternative).