Title
Consider and take action on a resolution ratifying the agreement with D. Wagner Construction Co., Inc. for the Emergency Repair of the 42-inch gravity sewer located at the Butler Rd Lift Station in an amount not to exceed $472,874.40 (Director of Public Works)
Background:
Approval of this item will ratify the agreement with D. Wagner Construction Co., Inc. for the Emergency Repair of the 42-inch gravity sewer located at the Butler Rd Lift Station in an amount not to exceed $472,874.40.
On Thursday, January 16, 2025 staff identified a large sink hole within the lift station perimeter fencing and the adjacent Mustang Cat facility. The cause appeared to be similar to what we recently experienced at Smith Lane and East Main LS’s, which was the failure of early 1980’s era ductile iron pipe and associated concrete manhole structure. It was deemed an “Emergency Status” repair due to the size of the LS and its’ associated service area, which provides sanitary sewer conveyance for 80 percent of the City, west of I-45. The sink hole threatened further collapse of soil conditions that could have severely impeded gravity flow into the LS wet well, along with threatening the onsite electrical control panel, genset, ATS, odor control system, and electrical service pole.
D. Wagner Construction was contacted and was able to respond the following day to assess the failure and begin formulating a plan to stabilize the area around the failed gravity line and manhole structure to ensure an acceptable level of flow into the wet well prior to forecasted rain and Winter Storm Enzo. Wagner was able to install sheet piling to sustain flow during the weather event and further protect the electrical gear. This effort was successful and prevented costly damage to the lift station electrical infrastructure. Wagner, Sander Engineering, and City staff continued to work on alternative pipe alignments that helped us determine the quickest most cost-effective repair method.
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