The project scope includes, but is not limited to, the following major work items:
- Approximately 3,100 LF of above-grade stainless-steel digester gas and waste gas piping. This will include connection of 5 condensate accumulators located along the pipeline alignment and installation of all valves, fittings, and appurtenances as required.
- Pipe rack and related structural supports for the above-grade pipe routing; this will include installation of approximately 108 3-ft diameter drilled shafts to provide the foundation for the pipe rack.
- Instrumentation including gas flow meters, pressure transmitters, oxygen sensors, methane transmitters and temperature transmitters, and associated control connections, as well as installation of a mass spec gas analyzer system.
- Construction of a 40 ft x 22 ft electrical equipment pad and installation of an electrical transformer and switchgear (pre‑procured separately and provided by the Owner), as well as construction of a separate 8 ft x 12 ft switchgear pad and installation of an additional switchgear to be furnished and installed under this project.
- Approximately 360 LF of duct bank (new) and installation of approximately 3,000 LF electrical conductors in total to be pulled through existing and new duct bank.
- Installation of a PLC and an interface panel on the pad alongside the transformer and installation and routing of approximately 1,800 LF of associated fiber optic cable, to be run along the above-grade pipe rack. Also, separate installation of two security cameras to be mounted on the above-grade pipe rack, and an additional approximately 1,700 LF of associated fiber optic cable. (Total of approximately 3,500 LF of fiber optic cable between both applications).
- Buried utilities, including approximately 770 LF of 6-inch HDPE natural gas piping and minor associated above-grade carbon steel connections, approximately 740 LF of PVC piping for plant service water in sizes ranging from 1-inch to 12-inch, approximately 150 LF of 3-inch HDPE potable water piping, approximately 760 LF of 8-inch PVC gravity plant sewer, approximately 200 LF of 4-inch PVC gravity plant sewer, and approximately 144 LF of 4-inch PVC forced sewer, and installation of all valves, fittings, and appurtenances as required.
- Demolition of several abandoned structures and construction of a stormwater junction structure as replacement to one of the demolished structures.
## Details
**Bid/Project ID:** 3110.3207D
**Type of Work:** Electrical substation and utilities
**Pre-Bid Location:** 6500 Singleton Blvd., Dallas, TX, 75212
**Pre-Bid Notes:** One non-mandatory Pre-Bid Conference will be conducted at the Trinity River Authority’s Central Regional Wastewater System Treatment Plant at 6500 Singleton Blvd., Dallas, TX, 75212. The Pre-Bid Conference will be held on Tuesday, June 23, 2026 at 10:00 AM. Following the pre-bid meeting, a guided walking tour of the Project Site will take place. This will be the only available time that prospective Bidders can visit the Project Site. Prospective Bidders are reminded that all visitors attending the Site Visit MUST have work boots, hard hats, and safety vests. No exceptions.
**Bid Location:** CIVCAST website (www.civcastusa.com)
**Bid Notes:** Bids will be read aloud by conference call starting at the time and date of the bid deadline above. Bidders and interested attendees can call 1-866-390-1828 and enter access code 6046502#. The Authority will download the bids and the bid totals will be read.
**Engineer/Publisher:** Trinity River Authority of Texas
**Engineer Address:** 5300 South Collins, Arlington, Texas, 76018-1710
## Additional Notes
DIRECT ALL QUESTIONS for this project only through CIVCAST. Only responses issued via Addenda are binding.
## Notes
Directions for the Guided Walking Pre-Bid Meetings: Call or e-mail at least 24 hours ahead of the meeting as mentioned above, then enter the treatment plant by showing ID to security guard. Next: For attending the Pre-Bid Meeting Indicate to security guard desire to reach the Planning, Design, and Construction Administration (PDCA) Trailer, and enter the plant using the left entry gate. The PDCA Trailer is located at the west end of the treatment plant site. Turn into the gravel driveway at CRWS 7 and CRWS D and follow along the gravel road between the fields of the former stormwater ponds to the gravel parking lot near the west levee.