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CASE # 3 <br />CONSIDER CHANGE ORDER FOR ELMCREST PARK PARKING LOT <br />IMPROVEMENTS <br />By: Leonard Linton, Civil Engineer II <br />Background: <br />Elmcrest Park parking lot improvements were approved for construction on July 2004. Soil borings <br />indicated that clay soils were present under most -of the parking areas. Borings were not performed <br />for all of the trail areas. The pavement design included geotextile fabric and sand under the Class 5 <br />aggregate due to the presence of the clay. The sand was also specified to be placed under all trails. <br />Areas of sand were found during the excavation of the site and the extent of the geotextile fabric <br />was reduced per the recommendation of the geotechnical testing firm. Grading for the trails has <br />encountered extensive areas of sandy soils that will not require additional sand fill. The project <br />design anticipated sand would be available from the excavation of both ponds on the eastern side of <br />the site, thus the quantity of sand to be imported was reduced. The soils in the easternmost pond <br />turned out to be clay down to the excavated depth. These soils were used as fill below the <br />geotextile fabric, requiring import of additional sand. <br />The lack of sand in the easternmost pond -required the import of additional sand to complete the <br />project. The presence of sand under the trails will reduce the required quantity of imported sand. <br />The impacts of these changes are summarized below: <br />Area <br />Cost <br />Parkin Lots <br />$ 27,300 <br />Trails <br />$(69,164) <br />Net Change <br />$ (41,934) <br />These numbers reflect the changes in the quantity of sand used on this project. The cost savings due <br />to the reduced quantity of geotextile fabric used are not included in this tabulation. <br />Staff is working with the contractor to finalize the amount of the change order. This amount will be <br />presented at the meeting for evaluation. <br />Action: <br />Staff recommends that the Committee forward the request for Change order # 1 for Elmcrest Park <br />improvements to City Council for approval. <br />Reviewed by: <br />Director of'Public Works <br />Assistant Public Works Director <br />Parks/Utilities Supervisor <br />PW: 10/19/04 <br />