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Consent 4.
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| Brentwood City Commission Agenda |
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| Information |
| Subject |
| Resolution 2019-24 - Approval of a competitively bid contract with Bell & Associates to repair the Wildwood Valley Drive Bridge. |
| Background |
The Wildwood Valley Drive bridge extends for a length of approximately 120' over the Little Harpeth River. It was originally constructed in approximately 1970 when the subdivision was part of Williamson County. The area was later annexed into Brentwood. With respect to the estimated age of approximately 50 years, the bridge remains in relatively good condition at this time. However, staff believes it is important to help preserve the condition of the structure and address some deterioration that currently exists. This project is included the current Capital Improvements Program (CIP).
With the help of our consulting engineer, Alfred Benesch & Company ("Benesch"), who maintains a strong reputation in the design of bridges throughout the nation, we finalized plans for the necessary repairs and resurfacing work. Staff and the Benesch engineers conducted an informational public meeting for the affected neighbors on January 22, 2019. Based on the feedback received at the public meeting, some details were modified, including the schedule for the project. The project was advertised for bid on February 13, with the public bid opening on February 27. Three competitive bids were submitted by professional bridge contractors, with prices ranging from $340,026.50 to $377,723.60.
Bell & Associates Construction ("Bell"), a Brentwood area firm, was the apparent low bidder. Bell has a large portfolio of impressive projects throughout the area with experience on several large bridge projects. In addition to full and partial depth bridge deck repair and reinforcement of a scoured pier on the north end, Bell's proposal includes temporary signalized traffic control to facilitate the bridge work, which will allow one lane to remain open to traffic. They will also provide necessary pavement and pavement marking work along with erosion control measures throughout the project.
With respect to neighborhood feedback, the project timeline has been adjusted and shortened, allowing the contractor to begin mobilization on or after June 3, 2019. The lane closure work on the bridge cannot begin until July 8, 2019, to help reduce congestion through the height of seasonal swim team traffic at the neighboring Brentwood Swim and Tennis Club at Wildwood. Completion of the phased bridge work must be on or before October 28, 2019, with demobilization and clean-up permitted to continue through November 22, 2019, if needed.
On a related note, Harpeth Valley Utilities District currently has a 6" water line attached to the east side of the bridge. HVUD will be coordinating the removal of that water line prior to construction while continuing to serve those residents through two additional water line connections that feed that area. Once the bridge work is complete, HVUD will return to hang a new 8" water line in the same location as the existing line. They are currently working under a separate agreement with Benesch for design services and will be coordinating with Bell to mount new pipe hangers on the bridge. Staff is comfortable with this arrangement, as we believe that both Benesch and Bell will maintain the City's interests throughout this work.
Staff, along with our team at Benesch, have reviewed the bids, and it is our recommendation that the contract be awarded to the lowest bidder, Bell & Associates Construction. A copy of the engineer's recommendation letter as well as contract documents are attached for your information.
Please direct any questions to the Public Works Director.
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| Staff Recommendation |
| Staff recommends that the City Commission approve the contract with Bell & Associates Construction. |
| Previous Commission Action |
| At the August 13, 2018 meeting, the City Commission approved Resolution 2018-58 allowing staff to work with Alfred Benesch and Company for design and bidding services for the repair and resurfacing of the Wildwood Valley Bridge. |
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| Fiscal Impact |
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| Fiscal Impact: |
The original construction budget for for this work ($175,000) was developed prior to completion of the initial engineering assessment, which identified the needed abutment work and the need for a temporary traffic signal.
In addition to the contract amount of $340,026.50, staff also seeks Commission approval of a small contingency allowance of an additional $15,000 to allow the project to efficiently proceed in the event of any unplanned complications or unanticipated discoveries. In total staff seeks approval of $355,026.50 of Capital Improvement funds for this project.
The overage will be covered in the Capital Projects Fund through a combination of available unallocated Capital Projects Fund balance and a portion of the planned FY 2019 year-end transfer of excess General Fund revenues to the Capital Projects Fund. |
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