R2012-92 ACCEPTING THE BID AND AUTHORIZING CONTRACT FOR 2012 TRENCHLESS LONG LINING REPAIRS

Home Browse Search

The trenchless long lining process involves the insertion of a resin saturated felt liner from manhole to manhole that hardens to repair the damaged pipe. Long lining the pipe repairs the entire pipe segment from manhole to manhole. Long lining is the most cost effective approach for pipes that have many structural deficiencies or significant damage. Once the lining is in place, it is pressed to fit tightly against the walls of the sewer pipe by either water or air pressure. The liner is then heated to activate the resin system, causing the pipe lining to cure and harden, thereby forming a new structural pipe within the old damaged sewer pipe. During this process, excess resin is forced into cracks,joints and irregularities of the old pipe, resulting in a bond between new and old pipe. When curing is complete, private lateral lines are re-opened using a remote controlled cutting tool. The 2012 Trenchless Long Lining Repairs Project will line approximately 14,100 lineal feet of 6", 8", 10", 12", and 15" sanitary sewers and 150' of 18" storm sewer at various locations throughout the City. The work also includes lateral reinstatement, video inspection, sewer cleaning, mobilization and traffic control. Project Bid Review The project plans and specifications were prepared by Engineering Division staff. The project was advertised March 7, 2012, and bids were opened on April 4, 2012. The results for the letting are as follows: Compared to Engineer's Est. Bidder Bid Price Over(-Under) Insituform Technologies USA, Inc. $416,674.25 (-7.08%) Hoerr Construction, Inc. $423,471.00 (-5.56%) Engineer's Estimate $486,513 -------- Insituform Technologies USA, LLC provided the lowest, qualified bid. Insituform headquarters are located in Chesterfield, MO and is one of the leaders and founders of cured in place pipe lining systems. Insituform was founded in 1971 and has lined over 17,000 miles of pipe throughout the world. Insituform successfully completed the 2009-28 Trenchless Long Lining project for the City. Staff recommends that the City Council approve a contract with Insituform Technologies USA, LLC to perform the 2012 Trenchless Long Lining Repairs project. POTENTIAL OBJECTION: There are no known objections to this resolution and bid award. INPUT FROM OTHER SOURCES: None STAFF REFERENCE: Richard Marley, Public Works Director, Matt Newell, City Engineer and Paul Caswell, Civil Engineer II. Richard Marley will be in attendance at the City Council meeting to answer any questions of the Council on this item. Page 12