A.H. Beck is contracted for 55 foot deep drilled shafts on reconstruction of the Pinto Creek Bridge in Miami, Arizona.
The Pinto Creek Bridge Project is located southwest of Miami, AZ on US 60 just east of the Gila/Pinal County line. The project is a complete bridge replacement of the existing structure built in 1949 that no longer meets the current minimum FHWA, AASHTO and ADOT Bridge Design Guidelines. The project consisted of 48”, 54” and 120” diameter drilled shafts with depths between 40 and 55 feet. The four 10’ diameter shafts terminated approximately 12-feet below the working surface at the bottom of the 14’ diameter transition cap designed for the interior bents. The abutment shafts were installed using conventional rock tools and an A.H. Beck Oruga 360 Euro Style drill rig. The shafts for the interior bents were installed utilizing a combination of specialty down hole hammer equipment and conventional tooling to excavate the Schultze Granite.