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03/13/2017 City Council Agenda
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03/13/2017 City Council Agenda
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3/13/2017
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3/13/2017
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Nearly 12,000 tons of RAP was used on 2016 capital paving projects, reducing the need for nearly <br />690 tons of asphalt cement and 11,000 tons of aggregate to be mined, refined, processed and <br />subsequently shipped to the pavement producers. Using warm mix asphalt with typical reclaimed <br />asphalt pavement content resulted in an estimated reduction of 911 MT COze compared to using <br />hot -mix asphalt pavement with no reclaimed pavement on 2016 capital paving projects. <br />Funding Status and Forecast <br />In 2012, project costs were estimated for each street for the purpose of selecting streets to be <br />included in the bond measure. These cost estimates were based on the overall surface condition <br />of each street as described in the City's Pavement Management System. A unit cost was assigned <br />to each street based on whether the street rehabilitation treatment was assumed to be a <br />reconstruct or an overlay. Approximately 18 months prior to construction, more detailed pavement <br />testing is conducted to determine specific treatments to each street based on the existing <br />pavement structure, subgrade soil conditions and traffic loading. Actual rehabilitation treatments <br />may be different than the original assumptions, requiring more, less or a combination of <br />rehabilitation techniques. <br />For the streets scheduled for 2016 construction, the 2012 estimated cost with inflation was <br />$7,564,000. As of January 1, 2016, although not all project contracts have been closed out, the <br />projected actual cost for the 2016 bond projects is $5,481,000; a net difference of $2,083,000 <br />below the costs projected in 2012. Several of the 2016 projects that were originally scoped as <br />reconstruct projects were completed with alternative rehab techniques that reduced overall project <br />costs. We continue to see a steady increase in construction costs and we expect that trend to <br />continue over the remaining two years of the Bond. Details on an annual project -by -project basis <br />are provided in the following pages and summarized in Appendix A. As construction is completed <br />each year, Appendix A will be updated and included in future reports to track the funding status <br />of the overall bond funds. <br />The 2012 bond measure also allocated an average of $516,000 for pedestrian and bicycle <br />improvements each year. In 2016, the project expenditures on all pedestrian and bicycle <br />improvements funded by the bond are estimated at $810,000, which is $293,000 over the annual <br />average allocation. Due to expenditures to date, $547,000 is available for the final two years to <br />maintain the annual average allocation. <br />
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