Mike O'Callaghan - Pat Tillman Memorial Bridge (Hoover Dam ...

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New Structure for a U.S. Icon

The Central Federal Lands Highway Division of the Federal Highway Administration awarded us a contract to provide design and construction support services for the landmark Mike O'Callaghan - Pat Tillman Memorial Bridge. Under the management of CFLHD, we led an integrated team of professionals from HDR, T.Y. Lin International and Jacobs Engineering (formerly Sverdrup) which was collectively known as the Hoover Support Team. Several supporting specialty subconsultants completed the design team.

The work included design of roadway grading and paving, bridges, wildlife crossings, drainage, lighting, utilities, traffic management systems, pedestrian accommodations, interpretive exhibits, high-voltage transmission line relocations and a signature long-span bridge over the Colorado River. It also included geotechnical engineering, survey and mapping, and corridor architectural design.

HDR was responsible for designing the Nevada approach, including a high-level crossing of Gold Strike Canyon; two grade separations with existing U.S. 93; a grade separation with the Lower Portal Road; and the Nevada interchange with existing U.S 93, which will become the Hoover Dam access road. HDR subconsultant, Jacobs Engineering, designed the Arizona approach consisting of a major bridge near Sugarloaf Mountain and the Arizona interchange. The landmark river bridge, featuring the longest concrete arch in North America, was designed by a joint team led by T.Y. Lin with major support from HDR. The 3.5-mile corridor includes 1 mile of approach roadway in Arizona, 2.1 miles of roadway in Nevada and a nearly 1,900-foot-long crossing of the Colorado River approximately 1,500 feet downstream from the dam.

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Client Central Federal Lands Highway Division of the Federal Highway Administration Location

Boulder City, NV United States

Size The 3.5-mile corridor includes 1.2 miles of approach roadway in Arizona, 2.1 miles of roadway in Nevada and a 1,900-foot-long crossing of the Colorado River approximately 1,500 feet downstream of the dam. Watch Videos Markets Transportation Highways & Roads Services Engineering Project Delivery

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Awards

Special Mention (2014) fib Awards for Outstanding Concrete Structures The International Federation for Structural Concrete (fib) Award of Excellence (2013) Major Civil Engineering Projects, Centenary Awards International Federation of Consulting Engineers Outstanding Civil Engineering Achievement Award (2012) American Society of Civil Engineers Eugene C. Figg, Jr. Medal (2011) International Bridge Conference Be Inspired Award (2011) Innovation in Bridges Category Bentley Be Inspired Awards Outstanding Project Award (2011) Bridges and Transportation Structures Category National Council of Structural Engineers Associations Grand Conceptor Award (2011) Engineering Excellence Awards American Council of Engineering Companies Globe Award (2011) Bridges (Projects > $100 Million) Category American Road & Transportation Builders Association Project of the Year Award (2011) Transportation (Greater than $75 Million) American Public Works Association Grand Award (2011) Engineering Excellence Awards American Council of Engineering Companies of Nevada Excellence in Structural Engineering Award (2011) Bridges and Transportation Structures Category Structural Engineers Association of Arizona Bridge Award of Excellence (2011) American Segmental Bridge Institute Related Projects NE Spring Boulevard Multimodal Corridor Poplar Street Bridge Widening and Rehabilitation Nashville East Bank Redevelopment Nevada Statewide Wildlife Crossing Prioritization Study