Title
A Resolution Of The City Commission Of The City Of Hollywood, Florida, Ratifying The City Manager's Approval Of A Purchase Order With Lanzo Construction Co., Florida For The Emergency Repair Of A 72-Inch Grit Chamber Effluent Pipe In An Amount Up To $425,580.00, Pursuant To Section 38.41(C)(1) Of The City's Procurement Code; Approving And Authorizing The Appropriate City Officials To Execute An Authorization To Proceed For Work Order Number H&S 23-07 With Hazen And Sawyer, P.C. In An Amount Up To $31,611.00 For Construction Administration Services For This Project.
Strategic Plan Focus
Infrastructure & Facilites
Body
Staff Recommends: Approval of the attached Resolution.
Explanation:
A progressive collapse in the asphalt between the Grit Chamber and the Influent Pump Station at the Southern Regional Wastewater Treatment Plant ("SRWWTP") was observed on Monday, April 17, 2023. Department of Public Utilities ("Department") staff sequestered the sinkhole and surrounding area for safety on the same day. On April 18, 2023, Department staff arranged for CCTV and diver inspections of the pipe under the collapsed area, which revealed an approximately 12-inch hole in the pipe crown.
On April 20, 2023, consultants from Hazen and Sawyer, P.C. ("H&S") completed a preliminary evaluation based on the CCTV findings and recommended additional inspections by a diver to determine the best repair method. On April 26, 2023, a diver completed the inspection and H&S recommended an emergency repair with either cured-in-place pipe lining or slip-lining techniques. This recommendation was based on the extensive loss of pipe material observed and the potential for imminent pipe collapse caused by heavy groundwater ingress.
H&S confirmed that Lanzo Construction Company ("Lanzo") and Insituform Technologies, LLC are the only two contractors in South Florida qualified to repair this size pipe with the recommended methods. Department staff met with both Lanzo and Insitu...
Click here for full text