Nashville’s Largest Water Line Project from Concept to Service in 24 Months

The Cumberland City Low Water Transmission Project consisted of more than 24,000 LF of 60- and 36-inch diameter ductile iron water mains. The completion of the Cumberland City Low Transmission Water Main Improvements project creates a dual feed water transmission main for an essential portion of Nashville's distribution system and Phase 1 of the redundant 60-inch feed from the K. R. Harrington Water Treatment Plant. The team provided this great project from routing evaluations through construction in less than 24 months. One of the biggest challenges and blessings was most of the project was located in existing roadways managed by the Tennessee Department of Transportation (TDOT) and Metro Nashville Public Works (NPW). The project also included a crossing of the Stones River and a liner plate tunnel under a Nashville Eastern Railway. While the benefit of the new water transmission main was added resiliency to the east side of the Stones River, the Triple Bottom Line identified $73.4 million dollars of regional gross domestic product (GDP) or added wealth to Davidson County was generated from this $34.3 million dollar investment into the water infrastructure.