Eversource's contractor plans to begin digging test pits along Main Street in Ridgefield. There are 6 holes planned to locate underground utilities and to establish the exact elevation. The work is expected to take a couple of days.  Eversource says this work is necessary to take the next step into final design plans of the upcoming State's Main Street project.  Ridgefield officials say most of the holes are not deep and should not take that long. They will be more toward the curbs and not in the traffic lanes.