To help Charlotte meet the demands of one of the fastest-growing populations in the United States, Charlotte Water (CLTWater) advanced a major improvement program to increase capacity and reliability within the Little Sugar Creek Tributary sewer system. With regional population projections exceeding four million by 2040, the existing infrastructure faced pressure to support both current and future demands. STV designed more than 7,000 feet of new sewers spanning three unique community contexts – a county‑run public park, a residential neighborhood, and a commercial corridor with complex underground utilities.
What challenges did STV address?
The project required navigating diverse landscapes with varying environmental, topographic and community considerations. STV needed to minimize disruptions in public parks, protect residential areas and manage dense underground utilities in commercial zones. Further challenges included securing environmental permits, developing easement plans, tunneling through solid rock and preserving natural resources such as hardwood tree stands. Avoiding impacts to an earthen dam was a critical design requirement.
What solutions did STV deliver?
STV delivered environmental permitting, geotechnical investigations, easement plan development, and full sewer design. Two micro-tunneled bored casings were installed to safely cross solid rock while minimizing surface disturbance. Throughout the project, STV coordinated with community stakeholders and utility owners to ensure safe construction and seamless integration within active neighborhoods. The firm also provided construction management services for the program, which earned recognition from the American Council of Engineering Companies of North Carolina.
How does this project benefit the region?
The upgraded sewer infrastructure enhances system reliability, supports planned growth and reduces the risk of future overflows. By designing with environmental stewardship and community impact in mind, the project strengthens long-term wastewater capacity for one of the nation’s fastest-growing metropolitan areas.
Key Stats and Accolades
- 7,000+ feet of new sewer infrastructure
- 2 micro‑tunneled bored casings through solid rock
- 3 communities served: park, residential, and commercial areas
- Recognized by ACEC North Carolina
