The namesake tunnel is about a half mile west of Sykesville. The center of
this photo shows the original route cut through
a hillside in order to stay on the north (right) side of the river.
The current route on the left, which dates to 1903, crosses the river
back into Howard County, runs
through the short tunnel, and immediately crosses the river again.
This must have been a troublesome section for B&O to have
justified the cost of all these structures.