Rehab
Chicago gas pipe replacement plan could add billions in customer costs
An Illinois consumer advocacy analysis says alternative rehabilitation methods could reduce costs tied to Chicago’s large-scale gas pipeline replacement program.
Microbial corrosion threatens concrete sewer pipes, new solution targets bacteria
Microbial corrosion is accelerating damage in concrete sewer systems, but new antimicrobial solutions are being developed to target the bacteria driving the problem.
Rehab tech spotlight: Lining systems
New lining systems are advancing trenchless rehabilitation with faster curing times, improved corrosion resistance and expanded applications across pipelines, conduits and structures.
Griffolyn pre-liners improve CIPP performance in pipe rehabilitation
Griffolyn pre-liners are designed to improve CIPP pipe rehabilitation by preventing liner damage, reducing resin washout and enhancing performance in challenging underground conditions.
When and why manhole rehabilitation is critical to sewer system performance
Manhole rehabilitation plays a key role in reducing infiltration, preventing structural failures and improving long-term sewer system performance.
Raising QA/QC standards for in-building CIPP projects
Improving QA/QC documentation for in-building CIPP projects is becoming an industry expectation, helping contractors reduce risk, improve transparency and strengthen client confidence.
ASTM F1216 updates reshape pressure pipe design for CIPP rehabilitation
Recent revisions to ASTM F1216 update how cured-in-place pipe (CIPP) liners are designed for pressure applications, correcting long-standing assumptions around hole spanning, internal pressure resistance, and groundwater loading.
Maumee, Ohio, to rehabilitate 27,000 feet of sewer lines with CIPP
Maumee, Ohio, has opened bidding for a $4.3 million sewer rehabilitation project to upgrade 27,000 feet of sanitary pipelines in its uptown district, with work funded in part by state and EPA programs.
CIPP lining strengthens 7,700-foot Fox River interceptor in Wisconsin
A Wisconsin sewer district completed a complex CIPP lining project beneath the Fox River, restoring more than 7,700 feet of interceptor pipe. The work, carried out entirely from barges, overcame unique challenges posed by the riverbed and urban setting.
Azuria Water Solutions acquires BLD Services to expand pipeline rehab capabilities
Azuria Water Solutions has acquired BLD Services, the nation's largest installer of CIPP lateral liners, expanding its footprint in water pipeline rehabilitation across the Central and Eastern U.S.
UI Awards 2025: Top projects, technologies honored during Underground Infrastructure Conference
UI Awards 2025 recognized leading underground infrastructure achievements, including major sewer, fiber, water and rehabilitation projects, at the annual awards dinner during the Underground Infrastructure Conference.
Griffolyn pre-liners improve reliability in trenchless pipe lining
Griffolyn reinforced pre-liners offer added protection and reliability during CIPP trenchless pipe rehabilitation, helping prevent resin washout, liner buckling, and installation delays in water and sewer infrastructure projects.
Evanston, Ill., begins sewer line rehabilitation project using CIPP trenchless technology
The City of Evanston has begun work on a multi-month sewer rehabilitation project using the Cured-In-Place Pipe (CIPP) trenchless method. Sewer cleaning and inspection started on March 25, with pipe lining scheduled to begin in May, weather permitting.
Vortex launches water division to tackle aging infrastructure
Vortex Companies has launched Vortex Water, a new division focused on water infrastructure rehabilitation. The move expands the company's trenchless solutions beyond sewer and industrial systems to address aging water pipelines with advanced materials, liners, and trenchless technologies.
Columbia, Mo., approves $9.2 million sewer rehab project using trenchless technology
The Columbia City Council has approved plans to move forward with a $9.2 million sewer rehabilitation project aimed at upgrading aging sewer infrastructure across central and west Columbia.
Crews begin trenchless repair of 70-year-old sewer main in Lakeland, Fla.
The city of Lakeland Wastewater Collection Division has begun repairing a 70-year-old sewer main along North Crystal Lake Drive between Smithfield Avenue and Lowery Avenue.
Vortex Companies acquires cured-in-place pipe provider Premier Pipe
Vortex Companies recently acquired Ohio-based Premier Pipe USA (Premier Pipe), a longtime provider of high-performance cured-in-place pipe (CIPP) products.
Remembering Bob Affholder: A legacy of passion and innovation in the CIPP, tunneling industries
(UI) — Robert (Bob) Wilson Affholder, a true industry giant by any measure or perspective, passed away in late July after a brilliant career that amazed, impressed and established his footprint upon essence of both cured-in-place pipe rehabilitation and the tunneling industry.
Patent pending for United Felts “one-of-a-kind” EnviroCure CIPP liner technology following re-launch
EnviroCure uses a unique impermeable polymer coating technology to create a barrier that prevents styrene emissions, meeting regulatory standards and significantly improving job site safety. The liner is designed for ease of installation using traditional methods, ensuring that it can be integrated seamlessly into existing operations without additional equipment or training.
Azuria Water Solutions acquires trenchless utility firm Oxbow Construction
Azuria Water Solutions, the leader in technology-enabled water solutions, has announced the acquisition of Oxbow Construction, a trenchless utility company based in Troutdale, Oregon.
CIPP, tunneling pioneer Robert “Bob” Affholder passes
A pioneer in trenchless rehabilitation and boring/tunneling, Robert "Bob" Affholder passed away Friday, July 26.
Editor’s log: The road to rehab intensifies
The 1970s marked a revolution in underground infrastructure with the birth of cured-in-place-pipe (CIPP) technology, allowing pipe repairs without excavation. This innovation, alongside other trenchless methods, has transformed the industry and continues to drive efficient solutions for aging infrastructure.
Pennsylvania township receives $6 million to rehabilitate 25,000 feet of sewer main
The $5.8 million project involves rehabilitating or replacing nearly 25,000 feet of sewer main with new sanitary sewer pipes and manholes. It is scheduled to begin on October 1 and be completed by May 30, 2025.
Bay Village, Ohio, begins sewer testing to improve system
Duke’s Root Control Inc. has been contracted to carry out the testing in six areas selected based on historical data, recent surveys, and the Ohio EPA's work with the Rocky River Wastewater Treatment Plant.
Rehab Technology selection guide
This comprehensive listing provides an invaluable resource in researching availability and specifications of key rehabilitation equipment/materials for the underground infrastructure industry.
Tech Tips: Documenting quality lateral lining installations
(UI) — With CIPP lining of mainline sewers becoming more and more accepted by system owners and utilities, greater attention is being paid to the opportunities to reduce infiltration and inflow (I&I) by utilizing CIPP lining for laterals.
Orinda rehab project uses eco-friendly geopolymer to restore aging culverts
Orinda used GeoTree Solutions’ GeoSpray 61 geopolymer mortar to rehabilitate aging culverts, protecting local streams and drinking water. The eco-friendly solution allowed for quick stream flow reinstatement with minimal environmental impact.
United Felts launches new UV CIPP portfolio for trenchless sewer rehabilitation
This portfolio combines the strengths of United GRP and EnviroCure UV, offering comprehensive solutions for varied sewer rehabilitation needs with the unmatched benefits of UV-cured technology.
Chandler, Ariz., set to rehabilitate largest sewer line along Price Road
Chandler city officials have greenlit two contracts to overhaul the city's largest sewer interceptor, a massive 66-inch pipe running along Price Road. The conduit handles approximately half of Chandler's daily treated wastewater.
CIPP rehabilitation of pressurized pipelines
It is well known that CIPP has been around for over 50 years, primarily being used to rehabilitate gravity sewer pipelines. In the 1980s CIPP was introduced for low pressure sewer applications, and late in the 1990s began to emerge for water main and higher-pressure force main rehabilitations.
- Fatal trench collapse in Mass. leads to $4.6 million OSHA penalty, dozens of violations
- OSHA investigates fatal trench collapse at Conroe construction site
- Final Lake Erie sewer tunnel project set to begin after decades-long $3 billion effort
- Texas811 launches real-time excavation detection to prevent utility strikes
- Fiber drilling strike triggers major sewer failure, lawsuits in Florida
- Fatal trench collapse in Mass. leads to $4.6 million OSHA penalty, dozens of violations
- Texas811 launches real-time excavation detection to prevent utility strikes
- Race Communications breaks ground on Bakersfield fiber network
- Final Lake Erie sewer tunnel project set to begin after decades-long $3 billion effort
- Inside Infrastructure: Utility locators warn of systemic failures in damage prevention process