On April 11th 2009, a hearty crew of volunteers bridged a 60 section of the Bay Circuit Trail in Harold Parker State Forest that has been experiencing flooding due to a nearby beaver dam. The bridge is approximately 200 yards east of where the Bay Circuit Trail crosses Jenkins Road in Andover.
Pictures below show the area before our bridge, during the project, and the completed span.

Flooded section of Bay Circuit Trail (yellow line indicates former trail path)

Some of the crew hard at work

The completed span!