AgdaPkt 2011-03-21 - Laserfiche WebLink

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� 6.2A ; Page 1 REPORT To the Honorable Mayor and City Council From the Cit Mana er �� ��I March 21, 2011 I S UBJ ECT II I Final Acceptance — 2010-2011 Sewer Rehabilitation Project RECOMMENDATION Accept, by motion, the 2010-2011 Sewer Rehabilitation Project and authorize the release of bonds and retention according to city procedures. BACKGROUND On September 27, 2010, Council awarded the construction contract for the 2010-2011 Sewer Rehabilitation Project which rehabilitated approximately 5,050 linear feet of sewer main in the sewer basin bordered by Whipple Avenue, Hopkins Avenue, EI Camino Real, Edgewood Road, and Upland Road. This project mitigated pipe defects such as longitudinaf/circumferential cracks, damage from root intrusion, and minor joint offsets. Improvements to the sewer main limit groundwater infiltration into the pipelines which increases the operational efficiency of the collection system. Construction technology that does not require extensive trenching, cured-in-place-pipe (CIPP), was utilized on this project. CIPP is a cost effective approach to replacing aging sewer infrastructure. The contract was awarded for a base bid of $537,275.00. The project was successfully completed in accordance with the plans and specifications. Change orders were issued totaling a credit of $16,717.42. The final contract amount is $520,557.58 which is 3.11 % less than the initially awarded contract amount. Change orders for credit resulted from deleting approximately thirty-nine (39) linear feet of CIPP liner, fifteen (15) lateral to main connection seals, and twenty (20) linear feet of extra point repair length that was in the bid schedule but not necessary. Southwest Pipeline and Trenchless Corporation began construction in November, 2010. The contractor achieved final completion in January, 2011 and within the 90 calendar days required by contract. ALTERNATIVES Council may choose not to accept the project and/ar authorize the release of bonds and retention which would be contrary to the terms of the contract, prior Council action, and the public contracting code. FISCAL IMPACT Sufficient funding for this construction contract was previously approved as Sewer Fund Capital Projects — Collec�ion Sysfem Replacemenf Program.