Environmental
Lake Sequoya Raw Water Intake & Pump Station

LocationHighlands, NC
Project SizeTreatment Capacity: 2.0 MGD raw water intake and pump station
EngineerMcGill Associates
The project consisted of the construction of a new 2.0 MGD capacity raw water intake and pump station for the Town of Highlands on Lake Sequoya. Work included:
- A raw water intake screen with air burst system
- 140 ft of 14" raw water intake piping laid in granite. Installation of this pipe required that the entire lake be drawn down using a by-pass pumping system and other dam modifications were made while the lake was down
- A pre-cast concrete wet well that was approximately 33 ft deep. 20 ft of this was in solid granite
- A 750 SF pump station building with valves, controls and miscellaneous piping. Installation of approximately 2,100 LF of 12" diameter raw water transmission main. 90% of this line was laid down one lane of a major highway which had to be resurfaced upon completion
- Resurfacing of approximately 1550 SF of the existing dam
- Epoxy injection of minor cracks in the existing dam