PORTLAND, Ore. (AP) A $138 million reservoir project will create about 1,500 jobs in Portland over the next three to four years, according to city officials.

Excavation is set to begin this summer on the Powell Butte reservoir. The new 50 million-gallon reservoir will be next to a 50 million-gal. underground reservoir that was built in 1979.

The excavation for the new reservoir should require six to eight months and will involve 100 dump-truck trips each day.

Portland Water Bureau officials say the project will be done in two phases. The first phase includes excavation, access road improvements, trail relocation, temporary parking lots and tree removal.

Phase two of construction, scheduled for summer of 2010, includes emergency overflow pipe, relocation of a caretaker house, a new interpretive center and trail improvements.

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