Moccasin Bend WWTP EQ Basin and Blower Improvements

January 1, 2024

The Moccasin Bend WWTP is part of the consent decree program. The goal of which is to significantly reduce, and where possible eliminate, sanitary sewer overflows and improve the overall operations of Chattanooga’s sewer system.

The project encompasses the demolition and upgrade of the EQ basins and blower building in facets of civil, mechanical and electrical, in addition to upgrade of other peripherals.

The existing facilities to which these improvements are being made will continue operation during the period of construction. The upgrades will be undertaken in progressive phases to ensure regular plant operations are not disrupted. These in conjunction with volatile state of material deliveries pose a unique challenge.

Project Information:

Location: Chattanooga, TN
Date Completed (Estimated): August, 2023
Contract Value of $27,685,000+
Owner: City of Chattanooga
Engineer: Jacobs

Notable Specs:

The project entails unique requirements which outline the existing facility operations and
sequencing constraints, around which the project has be undertaken
Construction of divider wall in existing EQ basins
Vertical turbine pumps to feed the new water cannon system
Blower and blower building sequencing and install
Mechanical aerators to provide airless aeration

Moccasin Bend WWTP Warehouse Expansion

January 1, 2024

J Cumby Construction, Inc’s involvement of this site will consist of building a 9,900 sf warehouse addition and renovating 22,900+ sf of warehouse and office space.

Also included in the scope, will be the demo and rebuild/improvement of two existing plant access points and an addition of a third, to include a new courtesy bathroom, guard shack, truck scale, a 15,000 sf truck wash building and a contaminated water/solids dumpster roll off area.

PROJECT INFORMATION:

Location: Chattanooga, TN
Date Completed (Estimated): September, 2023
Contract Value of $7,355,600+
Owner: City of Chattanooga
Engineer: C2RL, Inc. Engineers

NOTABLE SPECS:

Building a 9,900 Sf Warehouse
Renovating 22,900+ Sf of Warehouse and Office Space
Improvements made to a 15,000 Sf truck wash building

Gallatin WWTP DIGESTER REHAB

July 1, 2023

J. Cumby will be demolishing the existing aeration digester equipment on the site, such as 12" telescopic valves and 12" supernate ductile iron pipe.

J. Cumby will also be installing a new 12" decanter system, 12" and 6" decanter line, ductile iron pipe and pipe supports.

This site is set to be finished by 2023.

Project Information

Location: Gallatin, TN
Date Completed (Estimated): TBD
Contract Value of $99,000+
Owner: City Of Gallatin
Engineer: James C Hailey & Company

Notable Specs

This is one of the several sites that J. Cumby has had the privilege to work on for Gallatin.

Gallatin PUMP STATION AND STORAGE TANK

January 25, 2023

The City of Gallatin contracted J. Cumby Construction to complete a new Equalization Tank and Pump Station. Prior to proceeding with these structures, J. Cumby first demolished the existing structures left on the site. This demolition included the previous EQ tank and pump station from the 1950s, a large concrete slab that previously held a furniture production facility as well as hazardous material removal from the boiler room of another previous structure.

Site conditions required J. Cumby to blast rock prior to the excavation of the new Pump Station Facility.

Lastly and more notably, construction of a new Drainage Basin ‘A’ Flow Equalization Facility including a 10 Million Gallon Prestressed Tank, Concrete Structures, Pumps, Variable Frequency Drives, Piping, Valves, Meters, Concrete, Electrical, SCADA, Building, Site Work, Demolition, and all other appurtenances.

PROJECT INFORMATION:

Location: Gallatin, TN
Completion Date (Estimated): January, 2022
Contract Value of $10,600,000+
Owner: City of Gallatin
Engineer: James C. Hailey 7 Co.

NOTABLE SPECS:

The inclusion of:

A 10-Million-Gallon Prestressed Concrete Tank
A Jack and Bore drilling the Sewer Line
A Pump Station that’s approximately 30’ in depth
A 42” hand bore under railroad

Stones River WTP UPGRADES

November 1, 2022

J. Cumby will be demolishing 20" ductile iron spool pieces, fittings, valves and installing 20" ductile iron spool pieces, fittings, valves and a 700 horsepower vertical turbine pump.

Lastly, J. Cumby will also be changing out 4ea variance frequency drives in the High Service Pump Station, as well as, 4ea variable frequency drives in the membrane pump station.

The Project consists of furnishing all labor, material, and equipment for the installation of a new high service pump, including all associated valves, piping, motor, and variable frequency drive, replacing two (2) existing high service pump variable frequency drives and one backwash pump variable speed drive, replacement of three (3) existing check valves, and the replacement of an existing PLC for the high service pump station including integration. The project also includes the replacement of four (4) existing variable speed drives for the membrane feed pumps.

PROJECT INFORMATION

Location: Murfreesboro, TN
Date Completed (Estimated): March, 2023
Contract Value of $2,013,000
Owner: City of Murfreesboro, TN
Engineer: Smith, Seckman, Reid, Inc.

NOTABLE SPECS

The removal of the existing and installation of the new variable frequency drives must be carefully coordinated with the Stones River Water Treatment Plant which adds difficulty to the project
11930 Vertical Turbine Pumps

West Warren Viola WWTP Exansion and Modification

July 21, 2022

J. Cumby will be upgrading an existing wastewater treatment plant that currently treats 0.9 million gallons of wastewater per day.

Major Activities:

Expanding the existing facility’s control building by 2,310 sf
This includes an addition of (3) rooms:

-Chemical Feed – Currently in a separate building that will be demolished during this project

-Electrical & Control Room – Moving existing MCC & controls from a different area of the existing control building

-Open space

Renovations and additions to the facilities electrical services
Generator, motor control center, lighting, wiring
Demolition and removal of (2) existing sequencing batch reactor (SBR) systems
Installation of (2) new SBR systems
Blowers, decanters, analyzers, air supply lines, valves, connectors, pumps and instrumentation
Installation of new and modification of existing yard piping
Additional structural activities
New walkway canopy for the control building
Construction of a new structural steel canopy for the new blowers

PROJECT INFORMATION

Location: Morrison, TN
Date Completed (Estimated): December, 2023
Contract Value of $3,863,859.77
Owner: West Warren-Viola Utility District
Engineer: James C. Hailey & Company

NOTABLE SPECS

Because this is a renovation to an operating facility, one of the two SBR basins must remain in service throughout construction. Sequencing of the equipment installation will require a staggered installation for each of the basins, rather than concurrent installation typical to new construction.

Rockfish Creek WRF

July 1, 2022

J Cumby Construction, Inc., will be responsible for the removal of three mechanical bar screens and the installation of four (4) new multi-rake style mechanical bar screens in the same channels plus one in the manual bar screen channel.

There will also be Demolition of existing screening compactors and installations of two belt conveyors for screenings removal to dumpster area, removal of grit influent and effluent manually operated isolation slide gates and replacement with electrically operated slide gates, as well as the installation of new grit train distribution channel isolation slide gate (with new electric actuator).

Additionally, there will be replacement of four influent bar screen isolation electric gate operators with new Contractor furnished operators, Installation of a new electrical equipment pad north of screen channels, demolition and replacement of two sodium hypochlorite storage tanks including demolition of the masonry knock-out walls and replacement with translucent wall panels, as well as the demolition and installation of new fine bubble diffuser grids in Aerated Sludge Storage Tank No. 3.

PROJECT INFORMATION:

Location: Fayetteville, NC
Date Completed (Estimated): July, 2022
Contract Value of $2,430,000
Owner: Fayetteville Public Works Commission, City of Fayetteville
Engineer: Hazen and Sawyer

NOTABLE SPECS:

This project improves the Liquids Train of Rockfish WRF
This project improves the Solids Train of Rockfish WRF

Jones Street Pump Station

May 15, 2022

The existing Jones Street Pump Station was constructed in 1953 and conveys flow beneath the Tennessee River through a 24-inch diameter flexible joint iron pipe. Knoxville Utilities Board (KUB) has deemed the pump station is scheduled for a capital upgrade after a routine evaluation of its’ life cycle, due to its’ limited capacity and age.

In support of the upgrade, a new pump station with a depth of 47’ and associated facilities are planned for the new 1901 Jones Street site, approximately 500 feet south of the existing pump station. The project site is currently a combination of surface parking lot and storage area for natural gas tanks. The natural gas tank storage area is situated within the footprint of a former warehouse that has been razed. Remnant foundations for the warehouse remain.

As part of the project, a new 24-inch-dimeter force main will extend from the proposed pump station to the north toward the existing pump station. The force main then turns to the west and follows the river for approximately 960 feet, until turning north, crossing the Tennessee River and terminating at an existing manhole on the Tennessee Valley Authority (TVA) property. This project will be approximately 1,500 LF of force main that is time restricted from Jan. 1-Feb. 2.

In addition to all the aforementioned upgrades and new infrastructures, this site will also include: A New 42” Diameter Gravity Sewer, Marine Pipe crossing, approx. 200 LF of 6, 8 and 12-inch gravity sewer routing and, as well as, numerous other miscellaneous site improvements.

PROJECT INFORMATION:

Location: Knoxville, TN
Date Completed (Estimated): May 2022
Contract Value of $13,443,000+
Owner: Knoxville Utilities Board
Engineer: Jacobs

NOTABLE SPECS:

A 24” Force Main tie-in on the north side of the Tennessee River will be added
There will be a river crossing performed Late spring/early summer due to lower flows
There will be an implementation of a soil nailing shoring system, due to the inconsistent nature of subgrade rock
A Pump Station of 47’

ROCKFISH CREEK PUMP STATION AND STORAGE TANK

April 1, 2022

J. Cumby Construction has been contracted by Fayetteville Public Works Commission to install a New Equalization Tank-consisting of a 2.5M Gallon Pre-stressed Concrete Storage Tank that’s 150 feet in diameter.

Moreover, J. Cumby will also be adding Flow Control Facilities that include a 36’ deep concrete pump station with a grinder pump, sump pump, pump, wet well and dry well; as well as, a 23’ deep concrete diversion structure with slide gates, weir gates and a vertical mounted deflection screen and much more.

Additionally, there will be approximately 700 LF of new 8” portable water line to be installed down ‘George Owen Road’, to feed the new pump station and equalization tank. There will also be approximately 320 LF of new 42” PVC station influent/effluent piping and precast manholes, that will tie into the existing 42” sewer line.

PROJECT INFORMATION:

Location: Fayetteville, NC
Date Completed (Estimated): April, 2022
Contract Value of $11,170,00+
Owner: Fayetteville Public Works Commission
Engineer: CDM Smith

NOTABLE SPECS:

This site is a “Green Field Construction” since a significant amount of clearing and grubbing had to be completed in order to be able to begin on the EQ Tank
There will be approximately 700LF of 8” portable water line installed
There will be approximately 320 LF of 42” PVC station influent/effluent piping and precast manholes tied into the preexisting sanitary sewer line

Gallatin- Industrial Park Pump Station

January 16, 2022

J. Cumby will be responsible for the construction of a Pump Station for the City of Gallatin, in order to accommodate a new corporate entity to the Gallatin area.

This pump station will reach a depth of over 40 feet. Due to the nature of this project, this job site will require heavily implemented safety measures to ensure an accident-free construction.

PROJECT INFORMATION:

Location: Gallatin, TN
Date Completed (Estimated): January, 2022
Contract Value of $2,800,000+
Owner: City of Gallatin
Engineer: James C. Hailey & Co.

NOTABLE SPECS:

This job site will be handled with the utmost precautions, in fact, they are required throughout the duration of the project. These safety precautions will be put into place to ensure that no one will be harmed during the construction of the pump.

Brush Creek WWTP Aeration Blower Replacement and Electrical Upgrade

December 16, 2021

The Brush Creek Wastewater Treatment Plant is the largest of the three owned and operated facilities of Johnson City. J. Cumby’s involvement with The WWTP Aeration Blower Replacement and Electrical Upgrades Project includes blower and electrical switchgear replacement as well as several other architectural improvements to the existing Equipment Building.

The aforementioned architectural improvements include door and window replacement, wall panel replacement, replacement of the existing roof covering and a complete interior painting. Most of the previous existing equipment was installed in the early 1970s and has reached its ‘useful’ service life.

Recent improvements have included demolition of existing aeration blowers, controls and air piping out to the aeration basin connections, installation of new blowers with control system and new overhead air piping out to the aeration basin connections, installation of two new MCCs in the chlorine room and new building entry. We also upgraded the HVAC system to meet code requirements in the blower area and RAS pump room and to provide air-conditioned space for electrical equipment, while maintaining system operation with maximum system outage of 3 hours

PROJECT INFORMATION:

Location: Johnson City, TN
Date Completed (Estimated): December, 2021
Contract Value of $5,218,423+
Owner: Johnson City
Engineer: CDM Smith

NOTABLE SPECS:

Brush Creek is the Largest of Three owned and operated facilities of Johnson City

10st Street Widening and Food City

September 15, 2021

J. Cumby Construction will be site grading and implementing utility infrastructure improvements for the multi-site commercial business development, located at the intersection of 10th Street and Old Kentucky Road, that features a Food City.

Furthermore, this site will require the relocation of City Utility infrastructure and a five-lane road widening project.

PROJECT INFORMATION:

Location: Cookeville, TN
Date Completed (Estimated): September, 2021
Contract Value of $1,878,000+
Owner: BSM Cookeville, LLC
Engineer: Clinton Engineering Services, LLC

NOTABLE SPECS:

Multi-site commercial business development to a future Food City location.
Major City utility infrastructure relocation
Five-lane Street Widening

MBWWTP Equalization Basin and Blower Replacement Improvements Project

September 15, 2021

J Cumby Construction, Inc., will be making modifications to the existing equalization basins to include construction of a dividing wall in each existing equalization basin, which is in excess of 7 acres each, to result in four (4) new basins at the end of construction, demolition of existing process equipment and installation of new diffusers, aerators, vertical turbine pumps, blowers, water cannons with associated piping and electrical infrastructure, demolition and renovation of portions of the plan blower building and a dilution water pump station. Additionally, there will be resurfacing and repairs made to the asphalt around the equalization basins.

Furthermore, there will be approximately 10,000 cubic yards of concrete needed in order to complete the project. In Addition, the City of Chattanooga will be coordinating with J Cumby to plan out phases in which the modifications will be completed. The City of Chattanooga is needing the equalization basins to remain operational throughout the project to ensure that the WWTP can meet the system demands, as well as making sure the project can be completed on time.

PROJECT INFORMATION:

Location: Chattanooga, TN
Date Completed (Estimated): August, 2023
Contract Value of $27,685,000+
Owner: City of Chattanooga
Engineer: Jacobs

NOTABLE SPECS:

Approximately 10,000 Cubic Yards of concrete will be required to complete this project
The Equalization basins are required to remain operational throughout the project

Fall Creek Falls WW PUMP STATION

April 28, 2021

Bell and Associates Construction hired J. Cumby Construction for the rehabilitation of an existing wastewater pump station at Fall Creek Falls.

In the project, J. Cumby will be installing a new pump station access hatch, a by-pass pump around the existing pump station, new submersible pumps, new piping and a new valve vault with valves and pipes.

Additionally, J. Cumby will also be demolishing an existing sewer pump station and the existing solids storage tank, then filling it in with stone.

PROJECT INFORMATION:

Location: Fall Creek Falls, TN
Date Completed (Estimated): April, 2021
Contract Value of $250,000+
Owner: State of Tennessee
General Contractor: Bell & Associates Construction
Engineer: Barge, Cauthen, & Associates

NOTABLE SPECS:

Pump Station with a depth of 40’

Phi Gamma Delta Fraternity House

May 2, 2019

Tech Fiji Inc. has contracted J. Cumby Construction to completely demolish and replace their aging, near seventy-year-old fraternity house.

The contracted work is to take place over the span of one academic year and will include six bedrooms, two studies, five restrooms, a chapter room, storage room, loungeroom and etc. This fraternity house will be approximately 6,135 square feet by the completion of the project.