Excavation work is progressing at the Bridgewater Mobil where there was a leak of 1,100 gallons of gasoline underground earlier this month. State contractors are removing pavement and fill across Route 67 below the station. After the contaminated fill is trucked away, that section of the road has to be entirely rebuilt. The original road closure estimate was for 10 to 15 work days, but it didn’t start until this past Monday. Bridgewater has increased police presence and put out a speed trailer along the curvy and bumpy back roads being used as a detour.