Google maps does not direct you correctly. Use Dish Mill Rd for access to hiking, fishing, car-top boating. It becomes a rough one lane dirt road. The boat launch area is at southern part of lake and is not marked. The narrow lake is 31 acres and 3,700 feet long per Wikipedia.
The “hiking” trails did not tempt me as I had limited time and they seem abused by off road vehicles.
The small parking lot for view of the dam is at most northern end of lake on RT 81. Did not see the dam as there is no trail and didn’t want to walk thru the high grass.

Not my favorite state parks in the area.
Is poorly maintained and many dirt bike and quats in the area. Next to this park is route 9 highway, so it's pretty loud, I won't come back there again.

This was cool. Drove by and decided to check it out. A quick walk to the dam. Love how they designed it.

Nice place along the Connecticut River, but too many people in the summer come here and leave garbage behind.

Some of the reviews stated hiking; there are no hiking trails here. Not much room for walking but it does have a nice waterfall.