For a cast-iron natural gas main, initial replacement options for Peoples Gas in Chicago seemed straightforward—plastic or steel pipes. Logistical, operational and system constraints led the utility to explore an alternative solution: trenchless pipe-lining technology.
Engineering Innovations Emerge from Lining Challenges
Eversource Evaluates Trenchless Technology
BEM Pipeline Assessment For Railroad Crossing
Assessing ferrous pipe walls provides critical data to determine the condition and integrity of pipelines. When a utility needed to assess a section of a 20 inch cast iron main that runs under a railroad right-of-way, Broadband Electromagnetic Probe (BEM) accurately assessed the condition and the degree of corrosion or graphitization.