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ITEM 32 |
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City Council Memorandum Public Works & Utilities Memo No. CP24-163
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| Date: |
June 10, 2024 |
| To: |
Mayor and Council |
| Thru: |
Joshua H. Wright, City Manager
Andy Bass, Deputy City Manager
John Knudson, Public Works and Utilities Director
Daniel Haskins, Capital Projects Division Manager |
| From: |
Melanie Sikes, Senior Engineer |
| Subject: |
Construction Manager at Risk (CMAR) Construction Services Agreement No. WW2210.401, Change Order No. 1, with B&F Contracting, Inc., for the Price Road Frontage Road Sewer Rehabilitation |
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| Proposed Motion: |
| Move City Council award CMAR Construction Services Agreement No. WW2210.401, Change Order No. 1, to B&F Contracting, Inc., for the Price Road Frontage Road Sewer Rehabilitation, in an amount not to exceed $1,064,143.72. |
| Background/Discussion: |
The Public Works and Utilities Department administers an ongoing Wastewater Sewer Assessment Program to evaluate, prioritize, and repair deteriorated sanitary sewer pipes and manholes within the city’s wastewater collection system. On September 18, 2023, City Council approved a contract in the amount of $14,255,102.98 for the Price Road Frontage Sewer Rehabilitation project. The original scope of work for this project included the rehabilitation of sanitary sewer pipe, manholes, and siphons along the Price Road Frontage Road from Elliot to Frye roads. Notice to Proceed was issued on November 11, 2023.
During construction, the contractor inspected approximately 1,500 linear feet of 48-inch pipe located adjacent to the construction area between Frye Road and the Loop 202 Santan Freeway. Similar to the 42-inch pipe in the construction area, this pipe was found to also be in poor condition, with a number of failed joints no longer protecting the concrete pipe from hydrogen sulfide gases and corrosion. Large amounts of debris were also found in the pipe left from the deterioration of the upstream manhole structures in the construction area. Due to these conditions, the project team recommends extending the scope of the project to include the relining of the 1,500 feet of 48-inch pipe between Frye Road and Loop 202. This segment of 48-inch pipe was installed at the same time as the 42-inch pipe and was not assessed as part of two previous projects upstream and downstream due to its inaccessibility.
The benefits of rehabilitating this segment of 48-inch pipe now include a lower overall linear foot rehabilitation cost, an extension of only approximately 700 linear feet of temporary sewer bypass, and a shorter project duration (weeks versus months) than if the work were completed as a standalone project. This additional work to rehabilitate the 48-inch pipe can be completed within the existing traffic control setups already in place with no extension to the overall project duration. By completing this additional pipe rehabilitation, all the T-lock-lined reinforced concrete pipe (RCP) on northbound Price Frontage Road will now be rehabilitated.
The project scope of work for Change Order No. 1 consists of CIPP lining the existing 48-inch T-lock lined RCP pipe from Frye Road to the Loop 202 diversion structure along northbound Price Frontage Road. The agreement completion time does not change and remains at 340 calendar days. This change order represents a 7.5% increase from the original cost. Construction is anticipated to be completed by October 2024. |
| Evaluation: |
| The selection process was followed in accordance with city policy and procedure and state law. Staff recommends agreement award to B&F Contracting, Inc., based on qualifications, relevant firm experience, team experience, project understanding, and project approach. Staff reviewed the GMP proposal and determined it to be reasonable. |
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