TO:
Honorable Mayor and Members of the City Council
THROUGH:
David N. Carmany, City Manager
FROM:
Tony Olmos, Public Works Director
Gilbert Gamboa, Senior Civil Engineer
SUBJECT:Title
Progress Payment No. 2 in the Net Amount of $100,605.00 to Miramontes Construction Co, Inc. for the 2012-2015 Rehabilitation of Sewer Manholes Project.
APPROVE
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Recommended Action
RECOMMENDATION:
Staff recommends that the City Council approve progress payment No. 2 in the amount of $100,605.00 to Miramontes Construction Co., Inc. for the 2012-2015 Rehabilitation of Sewer Manholes Project. 95% ($100,605.00) will be released immediately and 5% ($5,295.00) will be retained and released after project completion.
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FISCAL IMPLICATIONS:
Sewer Enterprise Funds in the amount of $300,000 have been appropriated by City Council for this project. Please see Attachment 1 (Tables 1 and 2) for budget, anticipated expenditure and progress payment details in tabular format. Based on progress payments to date, Staff is anticipating that use of the inspection contingency will not be required.
BACKGROUND:
This project is a result of the Wastewater Master Plan completed in 2010. Upon the inspection of 2,031 sewer manholes, the Wastewater Master Plan identified the manholes in need of repair and rehabilitation due to deterioration from age and high traffic loading. Staff has developed a maintenance program and has merged all recommended repairs through 2015 into one project for economic benefits gained by the City.
The 2012-2015 Rehabilitation of Sewer Manholes Project includes the rehabilitation, repair and/or replacement work on 60 manholes. One (1) manhole will be removed and replaced. Two (2) manholes will have manhole frames and covers replaced. Eight (8) manholes will have concrete flow channels repaired. Sixteen (16) manholes will be lined with a long-lasting, spray-on interior lining and thirty-three (33) manhole frames and covers will be replaced on manholes located on Sepulveda Boulevard.
On May 7, 2013, City Council authorized the City Manager to:
1. Award a construction contract in the amount of $171,124 to Miramontes Construction Co., Inc. for the 2012-2015 Rehabilitation of Sewer Manholes Project;
2. Approve additional construction work, if necessary, in an amount not-to-exceed $17,000 (10%);
3. Execute a professional engineering services contract with Wallace & Associates Consulting, Inc. in an amount not-to-exceed $48,824 for construction management and inspection services;
4. Authorize the City Manager to approve additional construction inspection work, if necessary, in an amount not-to-exceed $5,000.
DISCUSSION:
Construction started on August 12, 2013. Because the manholes were dispersed around the City, notices were distributed to the adjacent residents as the work progressed. Sewer Manhole Rehabilitation project mobilization included construction staging, stormwater pollution prevention measures and traffic control for each work location. The Contractor has completed the entire removal and replacement of one manhole; repaired the concrete channel and bench bases on eight manhole locations; finished the spray-on interior lining of sixteen manholes; and replaced a total of thirty-five manhole frame and covers at various locations throughout the City. The thirty-three sewer manholes located within the State Highway right-of-way (on Sepulveda Boulevard) required a permit from the California Department of Transportation (CALTRANS) and necessitated significant traffic control while the work was performed.
Project Schedule
The contract includes 90 working days to complete the work. The contractor has completed all contract work to date and negotiations are currently underway for minor extra-work items that will be reported on the final payment.
CONCLUSION:
The contractor has submitted an invoice for Progress Payment No. 2 in the total amount of $105,900.00 for work completed to date. Public Works staff has verified that the work was completed in compliance with the contract plans and specifications. Five percent retention will be retained and a net progress payment in the amount of $100,605.00 will be released upon City Council approval of this progress payment. Retention will be released after City Council acceptance of the completed project.
Attachments:
1. Tables 1 and 2 - Budget, Expenditures and Contract Payments
2. Map of FY 2012-2015 Rehabilitation of Sewer Manhole Project