IDOT Pump Station #27
John Burns Construction Company completed a Pump Station Rehabilitation Project for the Illinois Department of Transportation.
• John Burns Construction has recently completed a Pump Station Rehabilitation Project for the Illinois Department of Transportation. IDOT Pump Station #27 is located at Interstate Highway 94 (I-94) and 110th Street in Chicago. The pump station receives storm water from a 400-acre tributary area, through three sewer main drains, totaling 6.5 miles in length in I-94, I-57 and Stony Island Avenue. The pump station discharges water to Lake Calumet through a 1-mile lone outlet channel. Pump Station 27 has eight (8) 30,000 gpm pumps and is the largest IDOT storm water pump station in the Chicago area.
• The project consisted of the complete rehabilitation of the existing pump station including electrical, mechanical, structural, architectural and civil disciplines with the bulk of the work consisting of mechanical and electrical upgrades.
• The mechanical upgrades included the complete removal of eight (8) 30,000 gpm pumps and replacement with eight (8) 540 HP 4160V submersible axial/mixed flow pumps with draft tube assembly column. This work also included the installation of new 36” recirculation line with knife gate, slide gate, and a new ventilation system. The contract only allowed for one (1) pump to be take out of service at a time, thus requiring the new pumps and piping to be installed sequentially which allowed the pump station to have a firm pumping capacity of 210,000 gmp at all times.
• The major electrical upgrades included a new 5KV switchgear and motor starters, new Control and SCADA panels and two (2) new electrical services. Close coordination with ComEd was required as the existing ComEd Transformer Room was turned into the new Electrical Room for the 5KV switchgear and motor starters. To complete this work, two (2) temporary transformers were installed and fed from the new ComEd transformers to provide the existing pumps with the required 480V service. The existing ComEd Transformer Room was demolished, facility put completely on a temporary service, new ComEd transformer Yard constructed and two (2) new electrical services brought into the new 5KV switchgear without interrupting the pump station operations. During construction John Burns Construction also provided 24-hour, 7 days a week emergency response to any pump station alarms as a contractual requirement.