Evergreen Caissons, Inc

foundations that power families

Centennial Transmission Line

anchor bolt cages_platte river

Project Name: Centennial Transmission Line (345kV)

Location: Las Vegas, Nevada

Contract Amount: $3.6 million

Dates: May 2002 – December 2002

Owner: Nevada Power

General Contractor: Irby Construction

Transmission Line Length: 48 miles

Range of Depth & Diameters: 5′ diameter x 20′ deep to 10′ diameters x 40′ deep

Safety Record: Injury Free

Special Conditions: Summer desert temperatures and travel distances required the use of concrete retardants. The project consisted of lattice tower and anchor-bolt foundations. Drilling was difficult in the hard desert caliche formations, and rock coring was required in several foundations.