AgdaPkt 2011-12-12 - Laserfiche WebLink

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6.2.A. - Page 1 RE PO RT To the Honorable Mayor and City Council From the Cit Mana er December 12, 2011 SUBJECT Final Acceptance — Sanitary Sewer and Storm Replacement Project (Manzanita Street, Shasta Street, Spruce Street, Heller Street, and Pine Street) RECOMMENDATION Accept, by motion, the Sanitary Sewer and Storm Replacement Project and authorize the release of bonds and retention according to city procedures. BACKGROUND On January 24, 2011, the City Council awarded a construction contract for the Sanitary Sewer and Storm Replacement project to Robert F. Enz Construction, Inc., to replace sewer main pipes. This project was identified in the Sewer Master Plan as Priority 1 to improve the overall flow and condition of the collection system. ANALYSIS The contract was awarded for a base bid of $1,116,405.00. The project was successfully completed in accordance with the plans and specifications. Change orders were issued totaling $113,756.81. The final contract amount is $1,230,161.81 which is 10.2% more than the initially awarded contract amount. Change orders resulted from unforeseeable site conditions. Change orders included payment for: a. Delay claim by Contractor due to contaminated soil issue b. Differing site condition claim due to presence of cement treated base rock c. Realignment of proposed storm drain and sanitary sewer pipeline due to conflict with unknown and unmarked existing utility d. Installation of additional anodes to provide cathodic protection e. Installation of moisture barrier and straw waddles around the excavated soil on city's property Robert F. Enz Construction, Inc., started construction in February, 2011 and achieved final completion in September, 2011. The contract time was extended beyond the 65 days initially allowed for this project.