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The Brushy Creek Wastewater Treatment Plant project completed in 2009 was a $26M, 10 MGD expansion of an existing wastewater treatment plant near Austin, Texas.
While not unusual to perform a "bypass " to maintain a water or wastewater treatment plant's operating capacity while mprovements are being made, the Brushy Creek project required one of the longest and largest. A complete 24/7 bypass operation was required for 2 months. It consisted of seven 12-inch pumps, capable of bypassing 37 MGD, and more than 1,000 feet of pipe!
Team
Owner
Lower Colorado River Authority
Design Engineer
HDR Engineering
Project Location
Round Rock, Texas
Creative Solutions
PepperLawson Waterworks found creative ways to perform the complex retrofit and rehabilitation of the headworks process and piping, sludge dewatering equipment and piping and the pump station inside, on top of and underneath enclosed masonry buildings to achieve a most successful bypass without any loss of plant capacity.
Modification of Existing Facilities
These included expansion of the influent lift station and screen and grit facility along with new aerations, blower facilities, two 130-foot diameter final clarifiers, new UV disinfection system, new solids dewatering facility with upgraded 3-meter belt filter presses and an odor control system.
