 The road crosses the Rippowam River and enters the dense commercial area of Downtown Stamford, where it briefly becomes elevated and serves Route 137 near the Stamford Transportation Center.Upon leaving the downtown area, the freeway passes over the New Haven Line and crosses into the residential East Side of Stamford, where there is an interchange with US 1 that also provides access to Route 106.After this point, the southbound direction gains a fourth lane as the road enters the town of Darien, where there is a service plaza in the southbound direction.