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City of Lafayette <br />GSC Greenbush CSO Storage Tank; Lafayette, IN <br />Project Size: $23,100,932 <br />October 2017 - May 2019 <br />Bowen, teaming with Greeley and Hansen, constructed a 4.2 million gallon <br />concrete holding tank designed to eliminate overflows to the Wabash River. The <br />buried tank is located at an old city dumpsite. Bowen mitigated and restored the <br />site to pave the way for a future city park. <br /> <br />Project Challenges:• Dewatering - The project site is located 200 yards from the Wabash River <br />and less than 100 feet away from a creek with direct connection to the <br />Wabash. The tank sits 30ft below grade and requires constant dewatering. <br />Bowen engineered and constructed a dewatering discharge point to take the <br />20.7 MGD we needed to keep the excavation dry. • Site restoration - The site used to be a city dump and was recently used <br />to store yard waste. Handling the waste material and developing a site for a <br />future park location has been a challenge Bowen has overcome. <br />Bowen Resourceful:• The existing site was void of topsoil. Bowen is using the existing mulch pile <br />and compositing the mulch to turn it into viable topsoil to grow grass. • To blend into the future park, the electrical building will have architectural <br />concrete work and exposed concrete cladding. <br />Bowen Responsive: • Bowen has closely monitored river levels, placing sandbags to protect the <br />transformer and building berms during near-record river levels in early 2018. <br />Bowen Results: • Awarded the 2019 Concrete Achievement Award from the Indiana Ready Mix <br />Concrete Association (IRMCA) for excellence in concrete construction <br />RESOURCEFUL. RESPONSIVE. RESULTS. <br />PROJECT SCOPE <br />• Site Work• Civil / Concrete Work• Underground Piping• Structural Steel Erection• Equipment Setting• (4) Grande Flushing Gates• (1) Tipping Bucket for Flush Water• (4) Sets of Fine Screens• (2) Flygt Dewatering Pumps• Mechanical / Piping• Architectural / Finishing Work <br /> PROJECT SPECS <br />• 141,646 CY of excavation• 816 - 50, 45, and 30 FT Piles• 9,978 CY of concrete• 990 tons of rebar• 108,788 SF of formwork• 719 LF of 110” piping• 4 building structures <br /> PROJECT TEAM <br />• Bowen OM: Chris Manges• Bowen PM: Jared Weber• Client Contact: Brad Talley <br /> 765.807.1800• Engineering: Greeley and Hansen <br /> www.bowenengineering.com <br />Multiple Guaranteed Savings Contract Community