Success Stories: Pipe Installation, Repair,…

Success Stories: Pipe Installation, Repair, Inspection and Rehabilitation

Company relies on pipe plugs for sewer maintenance operations

Problem: Miller Underground of Bismarck, North Dakota, focuses on preventing costly emergencies and extending the lifespan of sewer systems.

Solution: They have effectively utilized Cherne pipe plugs to enhance their operations’ efficiency and safety. “Each day presents a unique challenge that requires diverse testing equipment,” says Samantha Da Silva, combo truck operator and shop manager. “Strict adherence to a checklist for handling pipe plugs is crucial. We own an assortment of Cherne plugs that cater to varied pipe sizes, from 200 to 600 millimeters.” Blocking plugs temporarily halt wastewater flow for thorough sewer line inspections, enabling accurate diagnostics and informed maintenance recommendations. Plugs are also employed during maintenance to remove debris, isolate sections for targeted cleaning and maintain system functionality with bypass plugs. Miller Underground uses Cherne 6- to 10-inch I-Series Test-Ball Plugs for air pressure testing in the Port Lands Flood Protection Project in Toronto, scheduled for completion in 2024. This project includes creating a naturalized river valley, new public spaces, roads, bridges and utilities.

RESULT: “During our early stages, a Cherne representative trained us on proper use and safety guidelines,” says Da Silva. Employees follow rigorous protocols, from plug size selection to pressure monitoring, ensuring safe and efficient operations. 800-843-7584; www.cherneind.com

Trenchless winches provide pulling solution for sewer interceptor

Problem: Portions of the New York City regulator chamber that diverts sewage from the Bronx to the sewage treatment plant in Manhattan were highly deteriorated and in need of replacement.

Solution: Utility contractor Halcyon Construction Company used multiple winches on a significant slip inning project in New York City. As part of the project, a 700-foot section of the structure needed to be sliplined. To pull the 85.5-inch-wide-by-75.5-inch tall, 8-foot long, 4,720-pound sections of bell/spigot noncircular fiberglass reinforced polymer mortar pipe into place, two constant tension winches from TT Technologies were used. A large, fabricated steel jig was used as the pulling point for a 12-ton constant tension winch. The winchline was inserted through the new pipe and attached to the steel jig. It was used to pull the jig which in turn pulled the pipe section. To return the jig to its original position, a 3-ton winch was connected from the opposite end. That winch was then used to pull the jig back to its starting position. The process was then repeated until 700 feet of pipe was successfully installed.

RESULT: The winches were effective in completing the job, and the affected portions of the regulator chamber were replaced. 800-533-2078; www.tttechnologies.com