City of Columbus

Big Walnut Sanitary Trunk Extension Phase 2 This project will extend sanitary sewer service further into northeastern Franklin County and southern Delaware County service areas. Construction is currently estimated to begin in early 2023, with the entire project completed by the end of 2026. Traffic impacts are being mitigated through restricted hauling hours and designated hauling routes. - learn more

Intermodal Sanitary Subtrunk Extension This project will extend sanitary sewer service further into the Northern Pickaway Joint Economic Development District, just south of Rickenbacker. Construction is expected to  begin in spring 2023 and to be completed by spring 2025. Traffic impacts are being mitigated with restricted hauling hours and routes. - learn more

Brooklyn - Cleveland Heights Elimination System This project will extend sanitary sewer service on Brooklyn Road (near Morse and Cleveland) to replace home sewage treatment systems (HSTS), which can leach into the groundwater table causing contamination. Construction is expected to begin in spring 2023 and be complete by summer 2024. Impacted residents will receive written notice prior to construction with info on timing and contacts. - learn more

Alum Creek Trunk - South (Phase 1) Sanitary Rehabilitation Project Concrete within the nearly 60-year old Alum Creek Trunk Sewer must be repaired in order to continue serving the area. Using trenchless rehabilitation, nearly 8,500 lineal feet of 102 inch diameter sewer will be repaired in early 2023 (and completed in late 2024). Located along the Alum Creek Multi-Use Trail and Three Creeks Park, users may notice caution signs; efforts will be made to reduce disruption to public access.  - learn more

Southerly ERC-FRC Replacement Construction for this treatment engineering project is to begin in Fall of 2022 and run through Spring of 2024. It will replace the MCCs in both the ERC and FRC, the transformer and switch between the two buildings, and the harmonic filters in each building. - learn more

SWWTP Post Aeration Diffuser Replacement Four tanks that treat and disinfect all of the plant effluent of the Southerly Waste Water Treatment Plant are being replaced, rebuilt or upgraded due to UV exposure, age, and lack of replacement parts. Construction is scheduled to begin in the fall of 2022 and will last approximately two years. - learn more

Alum Creek Subtrunk Sewer Upsizing and Rehab This project will construct a 450-ft of 60’’ corrosion resistant pipe to replace the existing 42’’ sanitary sewer near Roads End Place and College Avenue and other updates to mitigate sewer overflow to Alum Creek, and other benefits. Sewer. Construction is expected to begin in fourth quarter of 2022. - learn more

Near North and East - Iuka Park Project This project will rehab existing manholes and sewers that are in poor condition to restore capacity and extend its use another 50 years. Construction should begin in late 2022 and be completed in late 2023. Impacted residents will receive notification in advance with timing details and contacts. - learn more

Barnett Deshler HSTS Elimination This project will add sewer improvements along East Deshler Ave., Barnett Rd and Bexvie Ave. to eliminate the on-lot home sewage treatment systems (HSTS) currently in use. Construction will start in spring 2022 and be completed by fall 2022.
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Meeklynn Drive Sanitary and Storm Sewer Improvements Project This project will construct both sanitary and storm sewer improvements along Meeklynn Drive and Olentangy River Road. These projects will be bid and constructed together but will have separate funding sources. Construction is anticipated to start early 2022. - learn more

2021 Annual Lining Contract This project will rehabilitate sanitary sewer mains that are more prone to leaks or failures. Benefits include reducing the amount of non-sewerage waters getting into the sanitary sewer (reducing water in basements and sewerage overflows to streams and rivers). It includes over 47,000 linear feet of 8" to 18" diameter sewers using cured-in-place pipe (CIPP) methods. With construction to begin in spring 2022, area residents will receive notifications prior to the work being performed. - learn more

East Franklinton Sanitary Sewer - Phase 3 This sanitary sewer, storm sewer, water improvements Phase III project will replace or renew sewer and water lines within the area generally bounded by W Broad Street, Grubb Street, Dodge Park, and Lucas Street. Construction is anticipated to begin in the Fall of 2021 and completed in the Spring of 2023.  - learn more

Portage Grove Area Sanitary Sewer With construction expected to begin in 2021, this project will provide sanitary sewer service to homes that are currently served by home septic treatment systems.  - learn more

Rickenbacker Intermodal Sanitary Extension This project will eliminate a pump station and provide sanitary sewer service for future development. Construction is expected to begin in the third quarter of 2021 and completed by the third quarter, 2022. Due to the industrial nature of the area, no residents will be impacted by the project.  - learn more

Dyer-Lazar HSTS Elimination Project This project will extend sanitary sewer in Dyer Rd, Lazar Rd, Tanis Rd, and Brown Rd to eliminate home sewage treatment systems because they can leach into the ground water. Construction is expected to begin in spring 2022 and be complete by summer 2023. Residents will receive written notification from the contractor prior to construction, giving information on timing and contacts.
- learn more

Second Barrel Interconnector Project This project will reduce the flow level in the interconnector sewer and mitigate overflow in the Franklinton Area. Construction is expected to begin in the third quarter of 2021 and complete by the third quarter, 2022. - learn more

Moler Street Overflow Interceptor Sewer Bounded by: W. Moler Street on South, S. High Street on East, Scioto River on West and W. Gates Street on North, this project will redirect combined sewer overflows that discharge to Scioto River. Construction will start winter of 2023 and be completed summer of 2024. - learn more

SWWTP Boiler Project Construction is scheduled to begin in 2022 and will last approximately 18 months. Work will be completed so only 1 boiler is out of service at a time. - learn more

Blacklick Creek Sanitary Interceptor Sewer (BCSIS) - Air Quality Control Facility Located at 7154 Blacklick Ridge Boulevard, construction should begin in late 2022 and completed by the end of 2023. Traffic impacts should be minimal and invitations to a public meeting before construction will be sent those in the immediate area. This project will provide improved air quality and odor control for the region and aid in the reduction of sewer system corrosion. - learn more

Williams/Behm HSTS Elimination Project This project will extend sanitary sewer service in the Williams Rd/Behm Rd area, replacing home sewage treatment systems to eliminate the potential of ground water contamination. Construction is expected to begin in second quarter of 2021 and be complete by second quarter of 2022. Impacted residents will receive notice prior to construction with info on the timing of the work and contact information. - learn more

Center Large Diameter Rehabilitation Project This project will perform rehabilitation of the City’s sewers in downtown Columbus. Construction is expected to begin in early 2021 and be completed early in 2022. Impacted residents will receive written notification from the contractor prior to the work with information on timing and contacts. - learn more

Lower Olentangy Tunnel (LOT) LOT will connect into the upstream end of the previously constructed OSIS Augmentation Relief Sewer (OARS) at Vine Street. The LOT main tunnel will require construction of approximately 17,000 feet of 12-foot diameter tunnel at an average depth of 50 feet. This portion will be mined with a tunnel boring machine (photo) and constructed of precast concrete segments. There are three main shafts along LOT at Tuttle Park north of Lane Avenue, at Gowdy Field near Third Avenue & Olentangy River Road, and at Vine Street. - learn more

Alum Creek Storm Tanks - Real Time Control Pending approval, construction is expected to begin in late Fall of 2020. The goal of the project is to mitigate sewer overflow to Alum Creek at near Roads End Place and prevent river inflow and infiltration to the sanitary sewer. - learn more

JPWWTP Raw Sewage Pump Valve Project Construction of this project is roughly estimated to begin in the fall of 2020 and extend through the fall of 2021. This project will replace the hydraulic system with individual actuator systems to allow for multiple cone valves to be on operation at the same time, giving the plant more flexibility when starting pumps. - learn more

INTERMODAL SANITARY SUBTRUNK EXTENSION (ISSE) This project will extend sanitary sewer service further into the Northern Pickaway Joint Economic Development District which is located just south of Rickenbacker International Airport. The project will be advertised for bid and the City will issue the construction Notice to Proceed in early 2021. - learn more

Scioto Peninsula Improvements Project This project will install sanitary sewers, storm sewers and water mains, replacing aging lines to meet modern standards and have adequate capacity to support high density redevelopment of the project area. - learn more

Southerly UST Removal & Building Heating Improvements This project will replace the heating system for the Southerly Wastewater Treatment Plant and includes the removal of three large underground (fuel oil) storage tanks currently used to supply fuel to the boilers at the plant. Removal of the tanks permanently eliminates any risk of potential groundwater contamination. - learn more

Lockbourne Intermodal Subtrunk (LIS) Air Quality Improvements This project will improve air quality and aid in the reduction of system corrosion. The project is due to be completed in 2021. - learn more

Whittier Street Storm Tank Upgrades These tanks serve as a temporary retention/primary treatment facility. It has been in operation since 1986 without upgrades and now requires repairs. The project is expected to begin in 2020 and to be completed in two years. - learn more

Third Avenue Relief Sewer - Phase 3 Includes design and construction of sanitary sewers along West Third Avenue between Edgehill Road and Northwest Blvd. It includes new and replacement sidewalks and curb ramps to complete a continuous pedestrian path. Construction will start in 2nd quarter 2022 and be completed in 2nd quarter 2023. - learn more

Southwesterly Composting Facility – Odor Control Improvements This project will reduce emissions to the atmosphere, replace equipment that has reached the end of its useful life, and increase flexibility within DOSD’s biosolids beneficial use program, resulting in better control of odors emitted to the surrounding area. Construction is scheduled to begin in early 2020. - learn more

Alum Creek Trunk (Middle) Rehabilitation Phase C This project will perform rehabilitation of the City's Alum Creek Trunk Sewer Middle Section in accordance with the requirements of the OEPA consent order. The project is due to be completed in the winter of 2020. - learn more

East Franklinton Sewer Improvements Project (Phase 1) This project will install or replace 12-inch to 30-inch storm sewer in Broad Street, Gay Street and Scott Street. Construction will start in spring 2019 and be completed by the end of 2019. - learn more

OARS Deep Sewer Tunnel The Olentangy Augmentation Relief Sewer (OARS) tunnel will carry wet weather overflows that would otherwise empty into the Scioto River, to wastewater treatment plants. Construction began in September 2010 and is expected to be operational by late summer 2017.  - learn more

Woodward Avenue Sanitary Sewer Project This project will provide new residential sanitary service for 14 existing homes that are currently served septic tank systems, as well as extending existing sanitary sewers. The project will be advertised for bid in 2017 and the City will issue the Notice to Proceed in 2018, pending final approval from OEPA. The project is due to be completed in 2020. - learn more

SWWTP Digestion Process Expansion Project This project will enable the wastewater treatment plant to digest all of the thickened primary sludge during peak flows. Construction is to begin in early 2022. - learn more

Brimfield Area Sanitary System Repair Project Pending approval, construction will start early in 2021 and be completed in the last quarter of 2021. The project area is generally bounded by: Brimfield Road on South, Beechcroft Road on East, Tamarack Blvd. on West and Forest Village Lane on North. This project will replace sections of a sanitary sewer system that has settled and holds standing water which can cause basement backups. - learn more

Alum Creek Trunk (Middle) Sanitary Sewer Rehabilitation Phase B Project This sewer must be repaired in order to continue serving the surrounding areas. It includes “trenchless” rehabilitation along with spot repairs in various locations in order to extend its service life. Construction is currently anticipated to begin during fall 2017 and is expected to last approximately one year. - learn more

SWWTP Chemically Enhanced Primary Treatment (CEPT) Facility Project This facility will be constructed through the completion of the three following projects: the SWWTP CEPT Preliminary Treatment Project, the SWWTP CEPT Clarification Project and the SWWTP CEPT Disinfection Project. The project is anticipated to begin in mid-2017. - learn more

Jackson Pike Biosolids Land Application Improvements The primary goal of this project is to provide sufficient land application biosolids storage, piping, and load-out capability to reduce the need to incinerate or landfill biosolids at JPWWTP. Construction to begin in 2016 and completed by 2018. The current estimate for construction is $17M. - learn more

Managing Our Sewer System Various initiatives are underway to protect and improve water quality in the Columbus metropolitan area. We all benefit from clean water. - learn more