Title
Consider and take action on a resolution to ratify the contract with D. Wagner Construction Co., Inc. for the emergency repair of the 24-inch Ductile Iron Force Main (FM) from East Main Lift Station (LS) located near FM 2094 & Davis Rd in an amount not to exceed $119,101.60 (Director of Public Works)
Background:
Approval of this item will ratify the contract with D. Wagner Construction Co., Inc. for the emergency repair of the 24-inch Ductile Iron Force Main (FM) from East Main Lift Station (LS) located near FM 2094 & Davis Rd in an amount not to exceed $119,101.60.
On July 24, 2024 a substantial sanitary sewer leak was identified near the Clear Creek Intermediate School, just north of the Genco Canal Bridge on FM 2094. The leak surfaced near the curbline of the eastbound lanes and within the median and was immediately associated with the 24-inch FM from the East Main Lift Station (LS).
After evaluating the magnitude of the failure and its potential disruption of sanitary sewer service, the repair was declared an emergency. The East Main LS and its’ 24-inch FM was constructed in the early 80’s and collects and conveys wastewater from 12 lift stations in the City’s eastside service area. This facility conveys the second largest volume of wastewater from the City’s general benefit lift stations and is the most difficult to bypass pump for emergency repair conditions.
The actual leak was found directly under the eastbound lanes of FM 2094. This required the removal of a substantial amount of TxDOT roadway to complete the excavation of the suspected leak location. The top of the ductile iron FM was found to be in a severely deteriorated condition due to age and the corrosive wastewater environment.
The replacement of this aging FM has been in the City’s Capital Improvement Program (CIP) for many years and the design for the project was 95% complete at the time of this failure. Due to the condition of the failed FM and the concern for similar failures the construction bid and award process was accelerated in an effort to fast track completion of the FM replacement project.
Due to the complexity of the emergency repair D. Wagner Construction Co., Inc. was selected based on their longstanding history of work quality, fair pricing, and ability to promptly mobilize on site. D. Wagner Construction Inc. began mobilization on July 25, 2024, working through August 6, 2024 (7 working days) to conclude all evaluation, demolition, and repair activities.
In an effort to control cost, City staff requested Wagner to provide a daily rate for labor and equipment, with the understanding that once repair methods were identified actual repairs would be billed on a time and materials basis. Additional cost control efforts were taken on by City staff in support of the repair activities and monitoring efforts to ensure no disruption of service to our customers. These efforts include but are not limited to the following (approximate cost):
Wastewater Transport Services - $148,154 (wet hauling)
City-Wide Concrete Contractor - $73,000 (TxDOT roadway panel replacement)
Attachments:
1. Proposed Resolution
2. Exhibit A - Agreement with D. Wagner Construction, Co., Inc.
3. Emergency Justification Email
4. Photos
5. Vendor Report Card
CONTRACT ORIGINATION: Agreement has been reviewed by the City Attorney’s Office.
FUNDING
{X} Funds in the amount of $70,000 are available from Line Repair’s Utility System & Repair account #10207700-52620, and the remaining $49,102 will require a budget amendment.
STRATEGIC PLANNING
{X} Addresses Strategic Planning Critical Success Factor #1 - Develop and Maintain our Infrastructure