Arizona Spillway And Highway Bridge At Boulder Dam

Price: $4.95

Stock #: 89639
Type: Postcard
Era: Linen
City: Hoover Dam
State: Nevada (NV)
County: Clark
Publisher: J.T. Watters Wholesale Co.
Size: 3.5" x 5.5" (9 x 14 cm)

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Additional Details:
Pipes installed in the tunnels for reservoir outlets are 4,700 feet of 30-foot diameter main headers,1,900 feet of 25-foot diameter pipes below the branch penstock tunnels to the power plant, and 2,000 feet of 8.5-foot diameter pipes in 11-foot diameter tunnels leading to the needle valve outlets. The maximum thickness of the largest pipe is almost 3 inches.

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