Twice a year, hundreds of visitors flock to Clinton for an opportunity to walk across the top of the Wachusett Dam and gaze over the Wachusett Reservoir. Visitors seeking to make the final trek ...

The project had nearly instant results. Scientists stunned by discoveries in river where dam was removed first appeared on The Cool Down.

Brian Turk, left, a civil engineering technician for the U.S. Corps of Engineers, and Kipp Walters, a park ranger with the corps at Clinton Lake, inspect tunnel walls inside the dam at Clinton.