Anchorage Sewer Rehabilitation in Campbell Lake

by Bruce J. Corwin, Corwin & Associates Inc, United States,

Document Type: Proceeding Paper

Part of: Pipeline Design and Installation


This paper discusses the proposed rehabilitation/replacement of the Campbell Lake portion of the Campbell Creek C-5 Trunk Sewer (C-5 Trunk) located in Anchorage, Alaska. The original corrugated metal pipe (CMP) from 36 inch to 54 inch in diameter, installed in the early 1960's, was inspected in 1986 and found to be in a failure mode. Since the portion installed in Campbell Lake was considered to be the most critical to repair, the Anchorage Water and Wastewater Utility (AWWU) authorized the design to proceed in July 1988. Many unique and interesting challenges have faced the design team for this project including a difficult Environmental Assessment process due to fish concerns, an intensive public involvement program, innovative soils investigation methods, and innovative design techniques which would allow the new pipeline to be installed within the lake.

Subject Headings: Sewers | Rehabilitation | Lakes | Anchorages | Fish and fishery management | Rivers and streams | Pipeline design | Public opinion and participation | Alaska | United States

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