Tumbleweed is a new 115kV/15kV open air substation with 8 feeder positions. Grading, rammed aggregate piers, concrete foundations, and a new fence were included in the scope. A ground grid and conduit ductbank were installed, as well as the construction of new steel structures. Substation equipment included switches, breakers, instruments transformers, two power transformers, as well as two MTU’s. A new control building will be set and relay panels installed. Cabling will be pulled to the yard equipment and terminations performed. Project has an aggressive construction schedule and with the bulk of the work occurring during the winter months.
Client: Umatilla Electric Cooperative
Location: Boardman, Oregon