Kenmore Construction seeks subs/suppliers for the City of Columbus SWWTP Post Aeration Diffuser Replacement

Kenmore Construction Co., Inc. is accepting proposals from MBE/WBE Firms Certified through the City of Columbus – Office of Diversity and Inclusion and/or State of Ohio or EDGE Certified Firms.

Project Name:

City of Columbus – SWWTP Post Aeration Diffuser Replacement

  • Project (CIP) Number: 650354-100000
  • Contract Number: S91

Project Bid Date:

The City of Columbus Southerly Wastewater Treatment Plant Post Aeration Diffuser Replacement project bids on January 10th, 2024 @ 3:00pm local time.

Project Location:

Southerly Wastewater Treatment Plant (SWWTP)
6977 South High Street (U.S. Route 23)
Lockbourne, OH 43137

Project Schedule:

All work shall be substantially complete within 1,520 calendar days of the Notice to Proceed, with final completion to occur within 1,610 calendar days. The City anticipates issuing a Notice to proceed on or about April 29, 2024.

Project Description:

The Work, in general, includes, but is not limited to the following in accordance with the plans and specifications set forth in the Invitation For Bid. 

  1. Demolition and replacement of post aeration diffusers, air distribution piping, valves, and appurtenances within Chlorine Contact Tanks 1 through 4. 
  2. Selective demolition and replacement of air conveyance piping and valves at Chlorine Contact Tanks 1 through 4 and within the Chlorine Control Building. 
  3. Demolition and replacement of two (2) post aeration blowers, including the addition of two (2) adjustable frequency drives for the new blowers. 
  4. Rehabilitation of two (2) existing post aeration blowers. 
  5. Removal of one (1) existing sluice gate. 
  6. Electric-motor operator replacement for two (2) existing sluice gates. 
  7. Demolition and replacement of four (4) butterfly gates serving Chlorine Contact Tanks 1 through 4. 
  8. Installation of stop logs and work platform at the Chlorine Contact Tanks effluent channel and construction of a stop logs storage area. 
  9. Selective concrete replacement and repair at the Chlorine Contact Tanks. 
  10. Replacement of drain (mud) valves serving the Chorine Contact Tanks. 
  11. Selective demolition of abandoned equipment, electrical, and instrumentation at the Chlorine Contact Tanks. 
  12. Selective railing replacement and railing modifications at Chorine Contact Tanks 1 through 4. 
  13. Selective building improvements within the Chlorine Control Building including lighting replacement, floor coating replacement, caulking and sealing, and painting.
  14. Heating, Ventilating, and Air Conditioning Improvements at the Chlorine Control Building. 
  15. Electrical, instrumentation, and control system improvements.

Below is a list of particular areas of interest, but do not encompass the entire project. Please let us know if you are able to provide any subcontracting services or material supplies.

Division 1 – General Requirements

  • 01310 – Construction Progress Schedules 
  • 01320 – Construction Progress Documentation 
  • 01410 – Testing Laboratory Services 
  • 01580 – Project Identification 
  • 01590 – CONTRACTOR Field Offices and Sheds 
  • 01610 – Transportation & Handling of Materials &      Equipment 

Division 2 – Site Work 

  • 02050 – Demolitions 
  • 02071 – Concrete Coring 
  • 02220 – Excavating, Backfilling, and Compacting 
  • 02930 – Lawns and Grasses 

Division 3 – Concrete

  • 03100 – Concrete Formwork 
  • 03200 – Concrete Reinforcement 
  • 03251 – Concrete Joints 
  • 03300 – Cast-In-Place Concrete 
  • 03600 – Grout 

Division 4 – Masonry 

  • 04100 – Mortar 
  • 04150 – Masonry Accessories 
  • 04200 – Unit Masonry Construction 
  • 04210 – Brick Masonry 
  • 04220 – Concrete Unit Masonry
  • 04246 – Exterior Glazed Facing Tile 

Division 5 – Metals 

  • 05050 – Threaded Fasteners 
  • 05140 – Structural Aluminum
  • 05501 – Anchor Bolts, Expansion Anchors, and Concrete Inserts 
  • 05502 – Miscellaneous Metal Fabrications 
  • 05522 – Type II Aluminum Handrails and Railings 
  • 05531 – Aluminum Grating and Supports 
  • 05533 – Metal Floor Plate 
  • 05560 – Metal Platforms 

Division 7 – Thermal and Moisture Protection 

  • 07176 – Water Repellent Treatment – Concrete 
  • 07210 – Building Insulation 
  • 07920 – Sealants and Caulking 

Division 9 – Finishes 

  • 09705 – Resinous Flooring
  • 09900 – Painting 

Division 10 – Specialties 

  • 10400 – Identification Devices

Division 11 – Equipment

  • 11376 – Positive Displacement Rotary Screw Blower 
  • 11377 – Diffuser System 
  • 11378 – Centrifugal Blower Rehabilitation 

Division 15 – Mechanical 

  • 15052 – Exposed Piping Installation 
  • 15061 – Ductile-Iron Pipe 
  • 15064 – Copper Pipe 
  • 15068 – Stainless Steel Pipe 
  • 15100 – Valves and Valve Operators 
  • 15113 – Butterfly Gates and Operators 
  • 15114 – Cast Iron Sluice Gates and CI Sluice Gate Operators 
  • 15116 – Stop Logs 
  • 15121 – Piping Accessories 
  • 15122 – Mechanical Pipe Seals 
  • 15123 – Wall and Floor Pipes and Pipe Sleeves 
  • 15140 – Supports and Anchors 
  • 15260 – Pipe Insulation
  • 15400 – Plumbing 
  • 15401 – Installation of Plumbing Piping 
  • 15414 – Roof Drainage System 
  • 15500 – Heating, Ventilating, and Air Conditioning (HVAC) 
  • 15530 – Refrigerant Piping 
  • 15781 – Air Conditioning Unit – Split System 
  • 15832 – Unit Heaters – Electric 
  • 15856 – Modular Central Station Air Handling Unit
  • 15861 – Air Intakes and Relief Vents – Aluminum 
  • 15871 – Centrifugal Roof Exhausters – Aluminum
  • 15885 – Air Cleaning 
  • 15910 – Ductwork and Accessories 
  • 15950 – Controls 
  • 15990 – Testing, Adjusting and Balancing 
  • 15992 – Piping Systems Testing

Division 16 – Electrical and Associated Specifications

16900 – Plant Instrumentation and Control System and Associated Specifications

If your firm is able to provide a smaller portion of a service and/or provide material that is not specifically listed above, please notify our offices via email to Adam Kohler adamk@kenmorecompanies.com 

Bidding Documents:

Plans, specifications, addenda and associated bid documents can be provided by contacting Adam Kohler via email  adamk@kenmorecompanies.com or by phone at 330-762-9373. Kenmore Construction requests proposals be provided prior to January 9th, 2024 by 12:00 pm, local time, and can be forwarded to adamk@kenmorecompanies.com or Fax 330-762-2135.

Assistance in Financing, Bonding, Insurance, or Mentoring:

If your firm requests technical assistance in obtaining bonds, lines of credit, or insurance required by the City please notify our offices via email to Adam Kohler at adamk@kenmorecompanies.com

Company Information:

Kenmore Construction Co., Inc.
Columbus Office Address: 2924 Banwick Road, Columbus, Ohio 43232
Akron Office Address: 700 Home Avenue, Akron, Ohio 44310
Phone: 330-762-9373
Fax: 330-762-2135

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