Projects
Viewing entries in
Water & Waste
Construction of a new Clear-well & modifications to the filter building with horizontal pressure filters that includes new potassium and chlorine chemical system, SCADA, HVAC and offsite RTU communication.
Location: Sparta, TN
Completion Date: July 2018
This is the first phase of the plant improvements at Portland, TN that will include removal of an existing mechanical step screen and compactor and grit classifier and installation of new ones. It will also include new construction of pump station and bubble diffuser system to existing sludge holding basin
Location: Portland, TN
Completion Date: August 2019
Equipment, concrete, painting, and other miscellaneous repairs to sludge thickeners 1 through 5. New pumps, piping, valves, roofing, masonry, doors, weir gates, HVAC, electrical SCADA/Instrumentation and odor control units for pump stations 1 and 2. Primary and secondary sludge feed line 3-way valve replacement and demolition of the existing 3-way sludge valve and manholes and replacing with two new vaults each with two new motorized plug valve and a sump pump.
To ensure the reliability and cleanliness of the Kingsport area’s water supply continues for years to come, the City of Kingsport contracted J. Cumby Construction to completely rework the method of water supply to the water treatment plant.
The project consisted largely of the construction of a 24-foot-wide by 38-foot-deep intake well, a 7.5-foot-wide and 1,100-foot-long tunnel under the bluff to the water plant, and a new 22-million-gallons-per-day capacity pump station. The new process allows gravity to carry water from the south fork of the Holston River to the treatment plant where 4 identical pumps lift the water to the plant, safeguarding against single point mechanical failure. This replaces the existing system of pumping water up and over an 85-foot-high bluff with piping exposed to mountain weather conditions. Several other piping, electrical, and controls upgrades were completed as well, including a 2,500 kW emergency backup generator.
This project is the culmination of a process that began in 2010 with as mater plan to modernize a water supply system that dates to the 1920s and hasn’t been updated since the 1970s. Initially budgeted at 15 million dollars, J. Cumby Construction completed the upgrades slightly over 13.5 million.
Location: Kingsport, TN
Completion Date: July 2017
$13,500,000+ Contract Value
1,100+ Feet of Tunnel
12,000+ Tons of Stone
This project includes new construction of two SBR tanks and rehabilitation of an existing steel tank for a completely new waste water treatment system for Moore County, Tennessee.
New construction of new cast-in-place SBR Basin & Digester and all associated piping & pumps to provide new waste water treatment system for the City of Greenbrier, Tennessee.
New construction of Raw Water Intake and Pump Station to bring water to the treatment plant for processing into potable water.
New 5,000,000 gallon sewer overflow tank with detached electrical building and all associated piping.
Construction of a new sewer pump station for the city of Decatur, AL.
The Terris Tatum project in Madison, AL consists of a new raw water intake and pumping station on the Tennessee River.
This Water Treatment Plant Improvements project consists of a new sodium hypochlorite building and sodium hypochlorite system used to treat water prior to distribution to residents of Rutherford County, TN.
A new submersible sewage pump station located on the same sites as the existing Mayberry Street lift station, South Carter Street lift station, and Turn Table Road lift station.
This addition includes a new Sodium Hypochlorite Feed Building and a 5,500 square foot stand-alone structure with a major focus on the subsurface conditions.
This project included the installation of a new headworks structure and influent pump station. The main challenge of this project was the dewatering need for construction.
This project involved new influent headworks, influent pump station, SDADA, metering system, disinfection structures, chemical feed systems, and a maintenance building.
This construction included a new oxidation ditch, flow equalization and RAS pump stations, chlorine analyzer, laboratory building, sludge bed modifications and more.
