Project Updates

Duncan Sanitary Sewer Rehabilitation Project

Phase 1 , 2  and 3 construction is complete.


Phase 4- Infiltration and Inflow project for creek crossings is in final walk through, with the list of any remaining items found to be done in first quarter 2026.


Wastewater Project

Chorination and dechlorination project is complete.


Water Improvement Projects - Coming Soon


Fact Sheet & Project Map

  1. Fact Sheet (PDF)
  2. Project Map - Aerial (PDF)
  1. 1 Duncan Sanitary Sewer Rehabilitation Crew
  2. 2 Duncan Sanitary Sewer Rehabilitation Work

Duncan Power’s contracted tree trimming company as of December 31, 2024 completed all the work for that calendar year. Tree trimming for 2025 began in late summer/early fall and is projected to be completed by the end of 2025.

We encourage all property owners to trim trees on their property that could possibly create issues during severe weather.  Proactive tree trimming is essential to help avoid outages caused by fallen tree limbs.



Novinium Underground Power Cable Rejuvenation 

Upgrades in Duncan Power’s underground cable system continue with hired contractor, Novinium, who utilizes a proven state-of-the-art process to inject a proprietary chemical compound within the existing underground cables that rejuvenates the insulation properties of the underground electrical cables currently serving you with electricity. The process, originally developed in the 1980’s by Novinium, is fourth generation of the original process and works extremely well. Though the process takes longer than boring a new cable, it is cost effective and has a 100% success rate which is why many cities are choosing to use this technology. 

By using this process Duncan Power can give exiting cables a new start on life expectancy with only minimal digging, boring or trenching in yards. Please know that this does not mean a neighborhood that receives this process will never experience another power outage, but it does mean that we are rebuilding and reinvesting in our underground electric system in a few months, instead of a few years. 

Please be aware that there will be times when residents will experience power delivery disruptions to their home while workers go about their jobs for the safety of the homeowners and the electrical contractor’s workers. Duncan Power will notify residents by hanging door knockers the day(s) before power is to be turned off. In an emergency, or due to unforeseen circumstances, if notice before the power is turned off is not be possible, our crews will do their best to give as much advanced notice as possible.

We appreciate your patience during this important long term project.

Novinium Underground Power Cable Rejuvenation project scheduled mid summer 2024 is complete. Additional areas of work are being identitfied for future regeneration in 2025 and beyond.


Western Heights

Novinium Crews completed these areas in 2023, making important electrical service reliability improvements:

  • Duncan Mobile Village
  • Timbergate
  • Clampitt Oaks 
  • Whispering Hills
  • Creekside Apartments
  • Twilight Beech
  • Millrun Court
  • Duncan Village Apartments
  • The Winds of Oak Forest Apartments
  • Stagestand Addition
  • Harville Road
  • Red River Technology Center

El Rancho Water Tower Replacement

With the Council approved funding in place for the project, the plans and specifications were submitted in December 2023.  Bidding held in January 2024, and construction began in July 2024, with substantial completion scheduled for February 2026, weather permitting.

Water Treatment Plant

The Settling Pond Clean Out is completed.

Clarifier Rehabilitation construction began in October 2023, projected to be completed by the last quarter of 2025.

Water Lines Replacement Project

The first phase of the OWRB project is complete on 28th/29th Street off of Beech Ave and Chisholm Trail Parkway.

The second phase of the OWRB project began construction in July 2024 on Walnut Ave. Contractor began construction on Willow Ave in October 2024. Concrete repair work to the streets was done as tie ins completed, depending uppon weather and contractor availability. This phase was at 90% completion as of October 1, 2025. Contractor is now connecting services in the month of December 2025.

The third phase of the OWRB project is at 100% of design completion, with storm drain replacement and easements being finalized. Permitting phase in process. In December 2025, City of Duncan is providing notifications for all easements and acquiring right of ways.

The fourth phase for the OWRB project is at 90% design completion.

Bridges

Inspections for 2025 completed on 32 bridges, and work is beginning in February 2025 on all identified repairs, plus clean out of debris.

Gaitlin Rd bridge closed on 11-23-24 for safety, repairs to be done in 2025 in partnership with The Chickasaw Nation.

Clear Creek Lake Dam Project

Completed. 

Citywide Tank Inspection

Approved contractor began inspections in June 2025 to identify any needed repair work. Additonal tank inspections scheduled for inspection in the first quarter of 2026. Once repair work is complete, the 27th St and Elk Ave water towers will be painted.