CDG staff designed, prepared and coordinated the completion of final landscape architectural construction documents for this 15 mile long widening of the existing 2 lane highway to a new 4 lane divided highway configuration. This project is the main route from Arizona to Nevada and directly connects to the new Hoover Dam Bridge project recently completed in October 2010.
Key components included working with the National Park Service (NPS), Lake Mead Recreation Area and the U.S. Bureau of Land Management implementing environmental commitments. These items included preparation of aesthetic design details for slope grading plans, rock cut/fill slope mitigation, geotechnical investigations and temporary erosion control plans, scenic pullouts, information kiosk details and soil salvage and placement requirements. CDG staff also worked with ADOT and the NPS in the implementation of a native seed collection and re-vegetation program for restoration requirements within the boundaries of the Lake Mead National Recreation Area.
Significant to this projects development was the construction of 2 new wildlife bridge crossing structures for Big Horn Sheep Habitat. These bridges are first of their kind built by ADOT in Arizona and were coordinated with the Arizona Game and Fish Department. CDG played a key role in designing and preparing interpretive panels and way-finding exhibits for these unique structures.
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