Title
AUTHORIZATION TO ENTER INTO A CONSTRUCTION MANAGER AT RISK AGREEMENT WITH ACHEN-GARDNER CONSTRUCTION, LLC, FOR CONSTRUCTION PHASE SERVICES FOR WATER LINE REPLACEMENT AT VARIOUS LOCATIONS
Staff Contact: Craig Johnson, P.E., Director, Water Services
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Purpose and Recommended Action
Recommendation
This is a request for City Council to authorize the City Manager to enter into a Construction Manager at Risk (CMAR) agreement with Achen-Gardner Construction, LLC (Achen-Gardner) for construction phase services for various waterline replacements and approve the expenditure of funds in an amount not to exceed $4,694,759.75.body
Background
The city’s water distribution system is a vast network of water mains, service lines, valves and fire hydrants which foster the conveyance of potable water for domestic and fire protection purposes. There are over 994 miles of water lines, including 24,000 valves, 61,000 service lines and 8,400 fire hydrants.
Moving water through the city’s distribution system is a key component in ensuring uninterrupted service and reliability. Proactive rehabilitation and replacement efforts minimize maintenance issues, emergency disruptions and assist with maintaining the integrity of the water distribution system. The project is part of an on-going proactive preventive maintenance effort to maintain the operational reliability of the city’s water distribution system.
The project is needed to replace aging waterlines that have required excessive maintenance and reached their useful life. Staff identified seven (7) locations, city-wide where existing waterlines are in need of replacement.
Analysis
A Request for Qualifications was issued in August 2015 by the Engineering Department to provide design phase assistance and construction services as the Construction Manager at Risk (CMAR) for waterline replacement and new waterline installation at various locations throughout the City. Five (5) firms’ submitted qualifications and Achen-Gardner Construction was determined to be the most qualified.
This will be a multi-year/multi-phase project. The phases/locations are prioritized based on their condition, age and ease of constructability to minimize cost and public impact. This proposal is a guaranteed maximum price (GMP1) proposal for phase I and includes the replacement of the water lines at the 59th Avenue and Olive intersection, 67th Avenue and Bethany Home Rd. intersection, and 59th Avenue and Bethany Home Rd. intersection, and the water line from 59th to 60th Avenues on Bethany Home Rd. and includes all related equipment. The remaining phases will be brought to the Council at a future date.
Previous Related Council Action
On May 10, 2015, Council approved a Construction Manager at Risk agreement with Achen-Gardner for design services for the seven locations.
On December 18, 2014, Council approved a Professional Services Agreement with Stantec Consulting Services, Inc. for design and construction administration services.
Community Benefit/Public Involvement
The project will enhance the integrity of the water distribution infrastructure, minimize pipeline breakage, service interruptions, and improve water quality.
Budget and Financial Impacts
Funding is available in the Water Services FY2015-16 capital budget for $1,676,000, the Council tentatively approved Water Services FY2016-17 capital budget for $2,250,000, and the Water Service CIP Contingency fund for the remaining amount plus administration charges.
|
Cost |
Fund-Department-Account |
|
$4,694,759.75 |
2400-61013-551200 Water Line Replacement |
Capital Expense? Yes
Budgeted? Yes
Requesting Budget or Appropriation Transfer? Yes
If yes, where will the transfer be taken from? Water Services CIP Contingency fund.