Structure Type: built works - infrastructure - transportation structures - dams
Designers: McClure and Adkison, Architects (firm); Thomas Reed Adkison Sr. (architect); Royal Alfred McClure Jr. (architect)
Dates: constructed 1967
Building Notes
According to Seattle City Light's facts page, the Boundary Dam, a thin-arch type of dam, had a height of 340 above bedrock, a length of 740 feet and a thickness of 32 feet at its base to 8 feet at its top. Boundary is a 740 feet long, rising 340 feet from its bedrock. The dam cost $94 million to erect in 1967. (See "Boundary Project Dam Facts,"
Tel: 509.446.3083 (2015).
PCAD id: 17748