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The trenchless long lining process involves the insertion of a resin saturated felt liner from manhole
<br /> to manhole that hardens to repair the damaged pipe. Long lining the pipe repairs the entire pipe
<br /> segment from manhole to manhole. Long lining is the most cost effective approach for pipes that
<br /> have many structural deficiencies or significant damage. Once the lining is in place, it is pressed to
<br /> fit tightly against the walls of the sewer pipe by either water or air pressure. The liner is then heated
<br /> to activate the resin system, causing the pipe lining to cure and harden, thereby forming a new
<br /> structural pipe within the old damaged sewer pipe. During this process, excess resin is forced into
<br /> cracks,joints and irregularities of the old pipe, resulting in a bond between new and old pipe. When
<br /> curing is complete, private lateral lines are re-opened using a remote controlled cutting tool.
<br /> The 2014 Trenchless Long Lining Repairs Project included a base bid of lining approximately
<br /> 15,000 lineal feet of 8", 10", 12", 15", and 27" sanitary sewers. The work also includes lateral
<br /> reinstatement, video inspection, sewer cleaning, mobilization and traffic control. There was a bid
<br /> alternate included within the project to line the Old Wikoff Sewer, located near the 400 block of
<br /> South Edward Street. The Old Wikoff Sewer is tributary to the Union Street critical sewer but is
<br /> not included in the Union Street Sewer rehabilitation project.
<br /> Project Bid Review
<br /> The project plans and specifications were prepared by Engineering Division staff. The project was
<br /> advertised February 5, 2014, and bids were opened on March 5, 2014. The results for the letting are
<br /> as follows:
<br /> Base Bid Bid Base Bid+ Compared to
<br /> Bidder Alternate Alternate Engineer's Est.
<br /> Price Price Price Over(-Under)
<br /> Insituform Technologies $465,357.00 $28,902.00 $494,259.00 (-4.41%)
<br /> USA, Inc.
<br /> Hoerr Construction, Inc. $458,221.00 $37,850.00 $496,071.00 (-4.06%)
<br /> Michels Corporation $476,001.00 $33,607.00 $509,608.00 (-1.44%)
<br /> SAK Construction, LLC $489,441.05 $34,305.00 $523,746.05 1.29%
<br /> Heitkamp, Inc. $501,631.00 $35,875.00 $537,506.00 3.95%
<br /> Visu-Sewer of Missouri, $579,646.00 $79,010.40 $658,656.40 27.38%
<br /> LLC
<br /> Engineer's Estimate $483,745.00 $33,330.00 $517,075.00 ------
<br /> Insituform Technologies USA, LLC provided the lowest, qualified bid. Insituform headquarters
<br /> are located in Chesterfield, MO and is one of the leaders and founders of cured in place pipe lining
<br /> systems. Insituform was founded in 1971 and, since then, has lined enough pipe to circle the world.
<br /> Recently, Insituform successfully completed the 2012-28 Trenchless Long Lining project for the
<br /> City and is completing Division B and Division C of the Lake Shore Drive Sewer Rehabilitation
<br /> project.
<br /> Staff recommends that the City Council approve a contract with Insituform Technologies USA,
<br /> LLC to perform the 2014 Trenchless Long Lining Repairs project.
<br /> Page 12
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