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CITY COUNCIL AGENDA COMMUNICATION |
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| | | | | | | | | AGENDA DATE: | September 10, 2019 |
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| | | | | | | | | SUBJECT: | Award Bid and Authorize the City Manager to Execute a Contract with Four Star Excavating for the Construction of the Allenwood Drainage Improvement Water Line Lowering Project in the Amount of $365,117. |
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| | | | | | | | | STAFF RESOURCE: | Chris Flanigan, Director of Engineering |
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| | | | | | | | | PREVIOUS COUNCIL ACTION: | On November 13, 2018, City Council authorized the City Manager to negotiate and execute a License Agreement with Dallas Area Rapid Transit (DART) regarding Allenwood Drainage Improvements.
On April 9, 2019, City Council authorized the City Manager to Purchase Water Line Materials from Thompson Pipe Group - Pressure, Inc. in an Amount Not-to-Exceed $110,876 for the Allenwood Drainage Improvements Project |
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| | | | | | | | | ACTION PROPOSED: | Award Bid and Authorize the City Manager to Execute a Contract with Four Star Excavating for the Construction of the Allenwood Drainage Improvement Water Line Lowering Project in the Amount of $365,117. |
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| | | | | | | | BACKGROUND
The Allenwood Drainage basin has been developing over the years to the point that improvements to an existing detention pond currently owned by the Allen Economic Development Corporation are needed (e.g. the pond needs to be enlarged by making it deeper). During the consultant's design of these modifications, it was determined that an existing 24" waterline would conflict with the lower outfall and channel of the deeper pond. This conflict requires the existing waterline to be lowered.
The entire project was initially put out for bid and prices came in over budget. To lower the cost of the overall project, staff chose to construct the waterline components under a separate contract. Furthermore, this waterline lowering requires a long lead-time to manufacture the pipe. Consequently, this work can proceed, while the remainder of the project was prepared to be rebid.
The materials were ordered and are ready for installation. While the water lowering is taking place, staff will advertise for bids to construct the new outfall channel.
In order to take advantage of the economy of scale this project will also install 4 - 24" valves along our major water mains at four (4) remote locations throughout the City of Allen. These additional valves are needed to isolate sections of the main for maintenance. It will also reduce the amount of time that residents would be without water if or when these waterlines are damaged or shut-down for maintenance.
On August 15, 2019, six (6) bids were received. The three (3) lowest and responsive bids are below:
Bid 2019-7-70
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Contractor
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Calendar Days
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Bid Amount
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Four Star Excavating
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33
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$ 331,925
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Flow-Line Construction
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120
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$ 460,580
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Dowager Utility Construction
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170
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$ 488,450
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| | | | | | | | BUDGETARY IMPACT
Funding will come from unallocated non-bond
Water and Sewer funds.
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DR1901 -Allenwood Drainage Improvements Water Lowering Project Award Itemization
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Bid Amount
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$ 331,925.00
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Bid Contingency (10%)
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$ 33,192.50
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TOTAL AWARD AMOUNT
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$ 365,117.50
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| | | | | | | | STAFF RECOMMENDATION
Staff recommends that Council authorize the City Manager to award
bid and execute a contract with Four Star
Excavating in the amount of $365,117.50
for the Allenwood Drainage Improvement Water Lowering Project.
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| | | | | | | | MOTION
I make a motion to authorize the City Manager to Award Bid and execute a contract with Four Star Excavating in the amount of $365,117.50 for the Allenwood Drainage Improvement Water Lowering Project.
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