R2016-95 ACCEPTING THE BID AND AUTHORIZING THE EXECUTION OF A CONTRACT WITH SAK CONSTRUCTION, LLC (CITY PROJECT 2016-28)

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2016 Trenchless Long Lining Project The purpose of this project is to repair structural deficiencies that have been identified within the sanitary sewer system with a minimum disruption to service and disturbance to the surface. Structural deficiencies include broken and missing pieces of pipe, offset pipe joints and voids. The project locations were identified from the annual televised inspections conducted in the City's sanitary sewer system. The trenchless long lining process involves the insertion of a resin saturated felt tube from manhole to manhole that hardens to provide a smooth repair. The felt tube is inflated using water or air through the sewer. Water or air pressure is increased in the tube which presses it tightly against the walls of the sewer pipe. The water or air then heated to activate the resin system within the tube, causing the pipe lining to cure and harden to form a new structural pipe within the old damaged sewer pipe. When curing is complete, private lateral lines are re-opened using a remote controlled cutting tool. Long lining is the most cost effective approach to repair pipes that have many structural deficiencies or significant damage. The 2016 Trenchless Long Lining Repairs Project will line approximately 16,SOO lineal feet of the City's sanitary sewers ranging from 8-in to 18-in diameter. The work also includes lateral reinstatement, video inspection, sewer cleaning, liner testing, and traffic control. Project Bid Review The project plans and specifications were prepared by Engineering Division staff. The project was advertised June 22, 2016 and bids were opened on Thursday, July 14, 2016. The results for the letting are as follows: Compared to Bidder Bid Price Engineer's Est. Over (-Under) SAK Construction, LLC $461,573.50 (19A1%) Insituform Technologies, USA, LLC $470,848.25 (17.38%) Visu-Sewer of Missouri, LLC $488,294.80 (14.32%) Hoerr Construction, Inc. $580,247.00 (10.82%) J C Dillon, Inc. $770,826.75 35.25% Engineer's Estimate $569,912.50 -------- SAK Construction, LLC provided the lowest, qualified bid. SAK is located in the St. Louis area and has successfully completed sewer lining work for the City in the past. They were a main contractor involved in the Lake Shore Drive Sewer Rehabilitation project which was completed in 2014. SAK will adhere to the prevailing wage requirements of the State of Illinois. Staff recommends that the City Council approve a contract with SAK Construction, LLC to perform the 2016 Trenchless Long Lining Repairs project. Contractors for City Projects shall comply with City Code Chapter 28, Article 10, "Minority Participation Goals for Public Works Contracts." �2 �