February, 2004 - July, 2004
Lake Mead Intake No. 1 Modifications
Boulder City, NV







The contract required tie in of the existing water intake for the city of Las Vegas from 100' to 170' of water depth. The existing 12' diameter raw water intakewas prepared to receive a 10' diameter tee section. A 12' diameter x 168' long mortar coated steel pipe section weighing 180 tons was constructed on shore and placed in the lake utilizing a critical lift plan involving two 300-ton cranes. The pipe was towed to deep water, where it was deployed utilizing a controlled descent plan developed by C&W and naval architects. The pipe was mated to a Carnegie joint section attached to the tee section in 100 ffw. The lower end of the pipe was set on a precast slab located at 170 ffw.

Point of contact:
Southern Nevada Water Authority
Armin Vogt, 509/838-4455