ASEC supported a 26-mile project that consisted of 17 miles of overhaul-rebuild and an additional 9 miles of OPGW Fiber addition to the existing transmission line structures. The existing H-Frame line was converted to delta-monopoles.


The rebuild structures are a combination of engineered concrete and steel poles. ASEC generated the loading tree calculations for these poles and reviewed the vendor calculations and fabrication drawings. The foundations have been designed by ASEC using a combination of direct embedded with crushed rock and concrete backfills, and drilled pier shafts utilizing the anchor bolt cage design from the vendor. The geotechnical specifications were specified by ASEC and the soil parameters sifted from the boring reports while discussing foundation design concerns with the geotechnical engineer. ASEC utilized PLS-CADD, FAD Tools, and PLS-CAISSON for the modeling efforts.