Crescent City, California Inner Harbor Basin and Entrance Channel. Draft. Supplemental Environmental Impact Statement.

Abstract

The inner harbor basin as authorized, would have a project depth of 20 feet below MLLW, a 300-foot wide entrance, and would extend along the northeast side of the inner breakwater and along the northwest side of Citizen's Dock. The inner breakwater extension, authorized in the same legislation was completed in 1973. The navigation improvements were authorized to facilitate and reduce delays in receipt of petroleum products at Crescent City Harbor. A final environmental statement on the entire project was filed with the Council on Environmental Quality in 1972. Recent navigation problems in the harbor entrance as a result of shoaling, and other changes in the project area since 1965 have lead to a reevaluation of the recommended deepening plan. The purpose of this supplement is to describe the proposed changes in the authorized plan and to present the results of additional studies conducted. Various plans for the offloading of petroleum products were analyzed. Those studied in detail include the No Action Plan (Plan A), the modified authorized plan (Plan B), and a relocation of the oil dock to the inner breakwater extension (Plan C). Both Plans B and C contain the dredging of a harbor entrance channel to a depth of 20 feet below MLLW.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1981
Accession Number
ADA104781

Entities

Organizations

  • United States Army Corps of Engineers

Tags

Communities of Interest

  • Biomedical
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Birds
  • Fish
  • Fisheries
  • Habitats
  • Medical Personnel
  • Wildlife

Readers

  • Coastal and Marine Engineering/Sediment Transport/Hydraulic Engineering