Bridge construction from Powerhouse Tour. Construction progress on the Mike O’Callaghan-Pat Tillman Memorial Bridge scheduled to be completed in late 2010. The Bridge is 1,900 feet long, 900 feet above the Colorado River, and 1,500 feet south of the Hoover Dam. O’Callaghan was a longtime Nevadan, former Governor, community leader, and businessman. Tillman was a member of the NFL's Arizona Cardinals prior to joining the army and being killed in Afghanistan in 2004 at the age of 27.