The I-15 South Design-Build Project has been awarded "major project of the year" in the over $20 million category by the Nevada chapter of the American Public Works Association.
The Nevada Department of Transportation announced the honor at its fall conference in Lake Tahoe.
Projects nominated for APWA awards are evaluated on the basis of service to the public, community need, intricacy of design, aesthetic consideration, difficulty of construction, cost growth and time growth and complexity of financing.
The $246.5 million project involved collaboration between NDOT, the Las Vegas Convention and Visitors Authority (LVCVA), Clark County and the Regional Transportation Commission (RTC).
Project goals included creating a safer, more efficient I-15 commute from Tropicana to Silverado Ranch and providing easier access to Strip properties and McCarran Airport.
Components of the six-mile project included widening the freeway, adding northbound and southbound access roads, redesigning five interchanges and building 26 new bridge sections, 35 retaining walls as well as sound walls. Other features include Intelligent Transportation System infrastructure to improve traffic flows, landscape and aesthetic enhancements, steel sculptures of indigenous animals (sheep, coyotes, horses, burros, hawks and reptiles) as well as native plants and desert-adapted seeds, which require minimal water and no long-term irrigation. At its zenith, the project provided more than 400 jobs.
In design-build projects, final phases of construction are often designed at the same time as earlier phases are built, reducing both project length and cost. In addition, both design and construction are contracted with a single contractor, minimizing project risk and offering greater project innovation and collaboration.
In March, NDOT was named "Transportation Owner of the Year" in the southwestern United States by Engineering News-Record/Southwest magazine for the I-15 South Design-Build, West Mesquite.
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