Williams Fork Dam Hydro Overhaul

Williams Fork Dam Hydro Overhaul

Gracon performed a complete overhaul of Unit #1 and fixed wheel penstock maintenance. During the project we overhauled a 3 MW vertical turbine and generator including brushless excitation conversion, turbine parts refurbishment, and generator cleaning. In addition the project consisted of maintenance and testing of HPU1, replacement and modification of the Unit No. 1 draft tube dewatering system. Gracon refurbished the 70-inch by 93-inch penstock fixed wheel gate hydraulic cylinder, performed demolition and replacement of the existing penstock fixed wheel gate HPU, installed a second air compressor in the dam bubbler system, replacement of discharge line heat trace and insulation, and greaselss bushing conversion.


October 2017


July 2019


Denver Water


Parshall, CO