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w~ ,i}, <br /> REQUEST FOR ~ - <br /> r~i. <br /> COUNCIL ACTION <br /> CITY COUNCIL MEETING DATE: CLERK OF COUNCIL USE ONLY: <br /> JUNE 21, 2010 <br /> TITLE: APPROVED <br /> INCREASED CONTINGENCIES FOR ? As Recommended <br /> MID-CITY NEIGHBORHOOD AND ? As Amended <br /> ? Ordinance on 1 S` Reading <br /> EDINGER AVENUE IMPROVEMENTS ? Ordinance on 2"d Reading <br /> (PROJECT NOS. 107554 AND 077577) ? implementing Resolution <br /> AND RESIDENTIAL STREET REPAIR ? Set Public Hearing For <br /> - PHASE 12 (PROJECT NO. 106718) <br /> CONTINUED TO <br /> ~ ` FILE NUMBER <br /> CITY MANAGER <br /> RECOMMENDED ACTION <br /> 1. Increase the contingency for the contract with All American Asphalt for the Mid-City <br /> Neighborhood Improvements and Edinger Avenue Improvements project by $400,000 to a <br /> total estimated contract amount of $2,032,723 and approve a supplemental agreement for <br /> $400,000 with All American Asphalt for the additional work. <br /> 2. Increase the contingency for the contract with All American Asphalt for the Residential Street <br /> Repair-Phase 12 project by $320,000 to a total estimated contract amount of $3,542,115. <br /> DISCUSSION <br /> On February 1, 2010, the City Council awarded a contract for the Mid-City Neighborhood and <br /> Edinger Avenue Improvements project to All American Asphalt in the estimated amount of <br /> $1,310,298 plus a contingency of $322,425 totaling $1,632,723. Since then, additional funds <br /> from the Community Development Block Grant Fund Recovery Act became available for the <br /> Mid-City Neighborhood. In order to use the available funds, staff recommends extending the <br /> limits of pavement rehabilitation within the neighborhood. <br /> In addition, contract documents call for construction of one and one-half inch asphalt concrete <br /> pavement over six inches of cement-treated base (CTB). An initial field investigation prior to the <br /> start of construction revealed no issues with the subgrade. However, once the CTB process <br /> was started, some areas of unstable subgrade were encountered. To mitigate the unstable <br /> subgrade, the pavement thickness for all the streets needs to be increased from one and one- <br /> half inch to two inches. The contractor will be paid according to the actual quantities of work and <br /> <br /> the bid unit prices. With the additional contingency, the aggregate amount of the change order <br /> is estimated at $722,425, which equals to 55 percent of the original contract. <br /> 23A-1 <br /> <br />