Lake Fort Smith Water Transmission Line | Phase II (16-16)




Burns & McDonnell Engineering Company

Estimated Completion Date


Total Project Cost


Scope of Work

The City has begun constructing a new 48-inch water transmission line that will cover over 30 miles from the Lake Fort Smith Water Treatment Plant located in Mountainburg to Fort Smith. The new line will replace the original 27-inch water transmission line constructed in the 1930s. This project will be implemented in phases and is planned for completion in 2025. The larger diameter line will allow the amount of water supplied to the region’s water users to increase from 34 MGD to 70 MGD. It will also improve the level of service to the south and east sides of Fort Smith.

Phase II is currently under design. This phase will extend the transmission line an additional 12 miles from the end of Phase I to a location near the intersection of Rudy Road and Old Dollard Way.

Previous Phases

Phase I of this project is complete. Approximately six miles of the transmission line was installed from the Lake Fort Smith Water Treatment Facility in Mountainburg to a location near the intersection of S.H. 282 and I-49.

Maps / Plans for Download