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Title: Grays Harbor, Washington, Navigation Improvement Project, General Investigation Feasibility Study: Final Limited Reevaluation Report
Authors: United States. Army. Corps of Engineers. Seattle District
Keywords: Grays Harbor (Wash.)
Inland navigation
Channels (Hydraulic engineering)
Dredging spoil
Environmental management
Environmental protection
Publisher: United States. Army. Corps of Engineers. Seattle District.
Abstract: This Limited Reevaluation Report (LRR) and attached appendices document the U.S. Army Corps of Engineers (Corps) reevaluation of the economic justification of authorized depths and potential environmental impacts of deepening the federal deep-draft navigation channel in Grays Harbor, Washington from the currently maintained depth of -36 feet mean lower low water (MLLW) to the full legislatively authorized project depth of -38 feet MLLW. Congress authorized the Grays Harbor, Washington, Navigation Improvement Project (NIP) in the Water Resources Development Act (WRDA) of 1986, Public Law 99-662. This reevaluation focused on two alternatives that would deepen approximately 14.5 miles of the 27.5-mile federal navigation channel, along with a No Action alternative. Channel deepening would occur from the South Reach upstream to Cow Point Reach adjacent to the Port of Grays Harbor Terminal 4. The recommended plan, based on the economic and environmental analyses conducted for this reevaluation, is Alternative 3: Deepen Channel to -38 feet MLLW. Alternative 3 maximizes net benefits (average annual benefits less average annual cost) and is the plan that maximizes net benefits for National Economic Development (NED). This is the federal recommended plan. The depth in the recommended plan is the original legislatively authorized project depth and no additional congressional authorization would be required to implement the recommended pan.
Description: Limited Reevaluation Report
Rights: Approved for Public Release; Distribution is Unlimited
Appears in Collections:Environmental Documents

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