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Tied by water

TitleTied by water
Publication TypeJournal Article
Year of Publication2001
AuthorsReese AGroome, Palmer RN, Nelligan-Doran SE
JournalCivil Engineering—ASCE
Volume71
Issue2
Start Page50
Pagination50-53
Date Published02/2001
KeywordsEnvironmental issues, Washington, Water distribution systems, water quality, water resources, Water supply
Abstract

Seattle, Tacoma, and three utilities in the southern part of King County already are investing $250 million in a new regional water transfer arrangement: the Tacoma-Seattle intertie (TSI), or second supply project. The project involves adding additional storage and improving fish passage facilities at the Howard A. Hanson Dam and Eagle Reservoir, building water treatment facilities, and constructing a 33 mi, 60 in. diameter pipeline and an 8 mi, 42 in. diameter pipeline. This transfer between Tacoma and Seattle sets the stage for further regionalization of central Puget Sound in what is referred to as the Everett-Seattle intertie (ESI). Although legal and political impediments have hindered a full evaluation of the proposed ESI project, an agreement could represent the most promising alternative source of water for the growing metropolitan region.