Class III Cultural Resource Inventory of 175.4 Acres for the Salt River Project Abel-Pfister-Ball 230kV Transmission Line in the City of Mesa, the Towns of Gilbert and Queen Creek, and the San Tan Valley, Maricopa and Pinal Counties, Arizona

To meet increased demand for electricity due to growth, SRP plans to construct an approximately 20-mile (mi), double-circuit, 230-kilovolt (kV) transmission line including associated tubular steel pole structures that average 110–140 feet (ft) tall (Project). The Project would connect three 230/69kV receiving stations, including the Ball Substation in Gilbert, the Pfister Substation in southeastern Queen Creek, and the Abel Substation east of San Tan Valley. This Project was approved by the Arizona Corporation Commission (ACC) in 2009, when they issued a Certificate of Environmental Compatibility (CEC) (Decision No. 71441)