Ran this in 2009, we parked on the southeast side of the bridge across from the driveway with the "no trespassing" sign. I believe this to be on DOT Right of Way. When we took out, we were careful to stay under the bridge or as close to the bridge as possible (on state right of way). We had to climb over the guardrail.

The put in on Cassidy Bridge Road seemed to be for public access; not sure about that. We had no trouble parking there, though.