FNRT TEAMS WITH DARTMOUTH STUDENTS TO PLAN TRAIL EXTENSION
NHDOT just finished redoing the drainage system in the Enfield Tunnel under Shaker Hill Road. They took all the material out of the tunnel and replaced with 1.5 inch stone, a silt screen over the rock and then covered with stone dust. They also put new under drains in the tunnel. Next they placed a catch basin just west of the tunnel to catch surface water . This catch basin is in turn connected to a cross trail culvert which leads to the river. This project should eliminate tunnel ice and stop the erosion of the abutter. As dick said “we have had quite a great year with maintenance on the rail trail “.
The timing was perfect for the tunnel reconstruction; it is raining!!
Here are a few pictures of tunnel drainage remediation last week in Enfield. It is all done. The new 1.5 inch stone base in the tunnel, rock filled ditches and the catch basin should take care of icing of the tunnel during the winter and erosion during spring thaw and violent rain storms …maybe not the big downpours!! oh well. Thanks to the NHDOT in Enfield.