ROTSCHY, INC.
GENERAL CONTRACTOR
​WASTEWAY 5 RE-REGULATION RESERVOIR: FINAL CONSTRUCTION

COMPLETED: IN-PROGRESS

$14,699,160

LOCATION: SUNNYSIDE, WA

OWNER: ROZA IRRIGATION DISTRICT

         The completed work shall provide the Owner with a fully functional geomembrane-lined re-regulation reservoir with approximately 1,600 acre-feet of capacity. Water will be pumped from the Roza Canal into the reservoir with five vertical electric turbine pumps and returned to the canal by gravity through 4 control valves. Reinforced concrete structures include a spillway (labyrinth weir, chute, and stilling pool), canal
inlet/outlet structure, box culvert, storm water inlet protection, ramp flume, and pump station. Other components include significant valving, pump station discharge and return steel inlet/outlet header piping, earth and rock moving, power transmission and transformer elements, and electrical controls.
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