Surveying for Green Line begins
Boston Globe: “Green Line extension begins surveying in Somerville”
Workers started surveying the train corridor the week of Feb. 8. Before the engineers can proceed, they need to know soil conditions, topography, groundwater, “what the bedrock is like… where we need to work on bridges,” said DOT project manager Kate Fichter. The entire process should take six months.
Somerville Blog: “Green Line field work starts soon”