Loading...
HomeMy WebLinkAboutItem 1e - Accept all work for the Canyon Slope Stabilization Projectvti GPLI:� RN,-1 August i, 1903 �o�'hnnityof�o�y STAFF REPORT Public Works Services Department DATE: November 4, 2014 TO: Honorable Mayor and City Council FROM: Tom Tait, Public Works Services Director By: Ken Herman, P.E., Principal Civil Engineer SUBJECT: ACCEPT ALL WORK PERFORMED BY SOUTHWEST GENERAL ENGINEERING, INC. FOR THE CANYON RESERVOIR FACILITY SLOPE STABILIZATION PROJECT AS COMPLETE AND AUTHORIZE THE FINAL PAYMENT TO BE MADE IN ACCORDANCE WITH THE CONTRACT DOCUMENTS, SUBJECT TO THE RETENTION OF $3,604.75 AND AUTHORIZE AN ADDITIONAL APPROPRIATION OF $5,780 FROM THE WATER FUND Recommendation: Approve SUMMARY On July 1, 2014, the City Council approved a contract with Southwest General Engineering, Inc. in the amount of $66,315 for the Canyon Reservoir Facility Slope Stabilization Project. The terms and conditions of this project have been complied with and the work has been performed satisfactorily for a total project cost of $72,095. This amount reflects the original contract amount of $66,315 plus contract change orders totaling $5,780 or 8.72% above the original contract amount, which is within the City's standard 10% contingency. It is recommended that the City Council accept all work performed by Southwest General Engineering, Inc. as complete and authorize the final payment to be made in accordance with the contract documents, subject to the retention of $3,604.75 and authorize an additional appropriation of $5,780 from the Water Fund. BACKGROUND The Public Works Services Department ( "PWSD ") is responsible for the operation, maintenance, and repair of all municipal water reservoir and pumping facilities. The Canyon Reservoir facility provides water for residents living north of Elkins Drive. The facility was built in 1955 and consists of two 500,000 gallon water storage reservoirs and a booster pump station. In order to build the Canyon Reservoir facility, the hillside was graded and the east side of the property was cut back to create a level pad for the Accept Canyon Slope Stabilization Project November 4, 2014 Page 2 of 3 reservoirs. Over the years, the natural sloughing of material from the hillside has been a concern for the residents living on the adjoining property. In order to address this concern, an agreement was reached between the property owners at 2205 Canyon Road and the City in which the City agreed to construct a shotcrete wall on the hillside to prevent further erosion. DISCUSSION On July 1, 2014, the City Council approved a contract with Southwest General Engineering, Inc. in the amount of $66,315 for the Canyon Reservoir Facility Slope Stabilization Project. The work included clearing the hillside of all vegetation and loose material, installing slope anchors and reinforcement, and applying shotcrete paving. This work was performed under the inspection of Public Works Engineering staff. During the slope clearing phase of the project, staff evaluated the area necessary to be covered by shotcrete and made an adjustment with the contractor in order to meet the requirements of the agreement between the City and the adjacent property owner. The adjustment included an additional 400 square feet of shotcrete application to the project scope and resulted in a contract change order based on the work performed and material applied. A photo of the shotcrete wall at Canyon Reservoir Facility is shown on Attachment "A ". Below is a breakdown of the contract change order for this project: 1 Increase shotcrete area by 400 square feet for $5,780 reauired slooe coveraae The terms and conditions of this contract have been complied with and the work has been performed to the satisfaction of the Project Engineer. Southwest General Engineering, Inc. completed the slope stabilization work required by the contract in an efficient and timely manner. The change order is within the 10% contingency provided in the City Council's authorization. ENVIRONMENTAL ANALYSIS This project is considered a Class 1 exemption as defined in Section 15301(b) of the California Environmental Quality Act in that the project includes alteration of an existing water facility. FISCAL IMPACT This project was not included in the Fiscal Year 2014 -15 Budget as settlement negotiations were ongoing at the time of budget development. On July 1, 2014, the City Council appropriated $66,315 from the Water Fund for this project. The total cost to complete the construction of the Canyon Reservoir Slope Stabilization Project, including all necessary change orders is $72,095, which will require an additional appropriation of Accept Canyon Slope Stabilization Project November 4, 2014 Page 3 of 3 $5,780 to be made from the Water Fund. Sufficient fund balance exists in the Water Fund to cover the costs of this project. RECOMMENDATION It is recommended that the City Council accept all work performed by Southwest General Engineering, Inc. as complete and authorize the final payment to be made in accordance with the contract documents, subject to the retention of $3,604.75 and authorize an additional appropriation of $5,780 from the Water Fund. Approved: Dominic Lazza City Manager Attachment "A" — Photo of Shotcrete Wall Attachment "A"