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05
City of Pleasanton
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2016
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05
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3/10/2016 11:20:21 AM
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CITY CLERK
CITY CLERK - TYPE
AGENDA REPORT
DOCUMENT DATE
3/15/2016
DESTRUCT DATE
15Y
DOCUMENT NO
05
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BACKGROUND <br /> The Pedestrian and Bicycle Master Plan recommends a paved trail on the south side of <br /> the Arroyo Mocho canal from Hopyard Road to the eastern City limit. The project included <br /> three different paving methods to "test"the performance properties of the three materials. <br /> The plans were reviewed and approved by the Bicycle, Pedestrian, and Trails Committee, <br /> and the Parks and Recreation Commission. <br /> This project consisted of paving the Arroyo Mocho trail on the south side from Sutter Gate <br /> Avenue to Guzman Parkway with asphalt paving and two innovative test sections. The <br /> existing asphalt-paved trails along the Arroyo Mocho and the Arroyo De La Laguna have <br /> experienced major distresses and have become a significant maintenance concern. The <br /> Engineering Department investigated the issue and determined that the distresses are a <br /> function of the underlying soils and the trails' proximity to the sloping channel bank. In <br /> efforts to reduce the maintenance impacts and create a smoother walking and riding <br /> surface, the Engineering and Traffic Engineering divisions worked to identify some <br /> alternative paving materials. It was determined that a decomposed granite (DG) surface, <br /> porous concrete, and strengthened asphalt are viable long term trail surface alternatives. <br /> The three alternate trail surfaces (in one segment each) were installed as part of the <br /> project to determine the acceptability, durability and maintenance of the three options. <br /> On May 19, 2015, Pleasanton's City Council awarded the contract to Suarez & Munoz <br /> Construction Inc., in the amount of $866,598. Council authorized the Director of <br /> Community Development to approve change orders up to the project contingency amount <br /> of$108,400. The project has since been completed and is ready for acceptance. <br /> All surfaces are performing well at this time. Engineering will continue to monitor the trail <br /> to see if there is appreciable difference and benefit of one product over another. <br /> Engineering does not intend to write a formal report regarding the performance of each <br /> material, but instead observe performance over the long term and use the observations <br /> to help determine appropriate reconstruction methods of other trail sections along the <br /> arroyos as necessary. <br /> DISCUSSION <br /> Budget <br /> Funding for this project was provided by Bicycle and Pedestrian Related Improvement <br /> projects (CIP Nos. 115043 and 145043), as well as the General Trails Improvement <br /> project, CIP No. 017037. Ten change orders totaling $11,031 were issued for the project <br /> including the balancing change order. The changes include addition of a bollard and drain <br /> inlet warning signs, removal of trees and shrubs to provide more trail clearance, and <br /> additional grading to preserve the top of the bank grades. <br /> The final project funding and expenditures are summarized in Attachment 1 to this report, <br /> indicating total expenditure of $909,056 and a balance of $104,270. Actual remaining <br /> funds in the CIP total $103,194 due to an earlier payment for the in-pavement flasher <br /> controller installation near Harvest Park Middle School. <br /> Page 2 of 3 <br />
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