(Gilbert, 20', 1967, 07-05-a) across a Twomile Brook in Derby, Derby Township, New Haven County, CT. CT34 SE (curves E.) 1.5 miles from jct with CT8 exit 15 in Derby, S. on Derby Milford Rd. 0.15 miles to the bridge on the E. side of the road. (N41 18.379 W73 03.887) Photo by Dan Brock 2-24-02.