Infrasense recently completed a subsurface utility engineering (SUE) project on Dorchester Avenue in Boston, MA. The initial phase of the project included reviewing existing site drawings (QL-D) and a site survey to identify the location of relevant site features (e.g., water valves, fire hydrants, manholes, and telephone poles (QL-C). The second phase of the project included geophysical surveys using ground penetrating radar (GPR) and electromagnetic induction (EMI); accessing utilities via manholes for direct measurements and additional EMI surveys (QL-B), and distinguishing live from abandoned lines utilizing a pipe inspection camera system. The final utility location maps were provided in a CADD-compatible format, along with a Project Summary Report.
