>>> Clark County Public Works submitted a grant application requesting $38.4 Million for the Cactus Avenue / Interstate 15 Interchange to the United States Department of Transportation's Transportation Investment Generating Economic Recovery (TIGER) Discretionary Grant Program. "*UPDATE: This project was not selected for funding.
Interstate 15 (I-15) is the major freeway corridor that traverses north south through the Las Vegas Valley. It provides regional travel to destinations such as Northern Nevada, California, Utah, and beyond. It also is the main freeway corridor that links the residential areas of the south and southwest to the commercial and business areas centralized within the Las Vegas Valley. Clark County Public Works proposes to construct a new interchange on I-15 at Cactus Avenue to serve the south-central part of the Valley.
Based on right-of-way constraints at the project site, the interchange will be a Tight Urban Diamond Interchange (TUDI) configuration. The Cactus Avenue Interchange bridge over I-15 will be a two-span continuous Composite Steel Plate Girder structure. An existing flood control facility consisting of a three-cell (3) 12’ x 4’ reinforced concrete box (RCB) culvert crosses I-15 at an approximate skew of 44 degrees within the footprint of the proposed bridge structure for Cactus Avenue. The substructure will provide a cap beam spanning the existing three-cell box culvert.
The project includes roadway improvements along Cactus Avenue from Dean Martin Drive to Las Vegas Boulevard, a distance of 3,500 ft., to connect the interchange to the existing arterial street network. The proposed Cactus Avenue bridge over I-15 will be 132 feet wide, comprised of four 11-foot and two 15-foot traffic lanes, four 10-foot traffic turning lanes, one four-foot median, two 5.5-foot sidewalks, and two 1-foot barriers with Type “M” pedestrian rail. Roadway improvements will include drainage, traffic, and utility work from Dean Martin Drive to Las Vegas Boulevard. The project will also include landscaping of the interchange.
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