The project scope includes, but is not limited to, the following major work items:
- 10,320 LF of proposed 60-inch diameter gravity sewer pipe beginning at the existing TRA Henrietta Creek Interceptor and ending at a proposed manhole on the east side of I-35W. Approximately 415 LF will be installed by hand tunneling in a 84-inch nominal tunnel liner plate.
- 610 LF 3-barrel inverted siphon of 24-inch, 24-inch, and 36-inch diameter barrels and a 24-inch diameter air jumper pipe. The siphon is to be tunneled under Elizabeth Creek on U.S. Corps of Engineers property and installed within approximately 300 LF of 92-inch minimum inside diameter tunnel liner plate or a 92-inch outside diameter steel casing pipe. Siphon includes access manholes and knife gate valves with vaults.
- 400 LF of non-circular pipe with transition fittings.
- 14-foot diameter junction structure to connect the proposed Denton Creek Interceptor Phase I to the Existing 72-inch FRP Henrietta Creek Interceptor.
- 21 tee base manholes on the 60-inch gravity main with 5-foot diameter manhole risers.
- Installation of a non-contact open channel doppler radar (area-velocity) flow meter station.
- 85 LF of 8-inch and 12-inch gravity sewer pipe.
## Details
**Bid/Project ID:** 3828.2205
**Type of Work:** Gravity Sewer Pipeline
**Pre-Bid Location:** 5300 S Collins St, Arlington, TX 76018
**Pre-Bid Notes:** One Mandatory Pre-Bid Conference will be conducted at the Trinity River Authority’s General Office at 5300 S Collins St, Arlington, TX 76018 on Monday, June 22, 2026, at 11:00 AM – 12:00 PM.
**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. Final bid results will be posted on CIVCAST after award of the project.
**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.