Speculative scale drawing showing 30 ft. diameter tunnel at various depths under 19th century rowhouses.
(On a personal computer, hold down the CTRL key and use the mouse wheel to vary the size of the drawing.)
To determine the tunnel depth under your street, see B&P Tunnel FEIS Appendix J, Plan and Profile Drawings. They show the depth from ground level to the bottom of tunnels.
(On a personal computer, hold down the CTRL key and use the mouse wheel to vary the size of the drawing.)
To determine the tunnel depth under your street, see B&P Tunnel FEIS Appendix J, Plan and Profile Drawings. They show the depth from ground level to the bottom of tunnels.
