DBA recently completed another access roadway improvement project for Salt River Project at Horse Mesa Dam. Along the steep, winding narrow access road from Apache Trail down to the dam, there are a total of 6 switchback areas that had become unsafe for driving (particularly in the early morning hours). DBA was contracted by the utility company to improve one of the worst corners by building a retaining/curb wall, an anchored and rebar reinforced turndown, and improved driving surfaces that were rebar reinforced and tined for better traction. The project also called for the installation of additional CMP under the roadway and the construction of two modified concrete headwalls for improved drainage.
Adding to the complex project in an extremely remote area of Maricopa County, was the delivery of concrete to the site. Due in part to the steepness of the access road and the tight turns, concrete mixer trucks could only haul 6 CY per load. The entire project required a total of 160 CY. As A result, the project was completed in four weeks.