New Jersey State Route 29 is a north-south highway in Western Mercer County. It runs from Interstate 195/295 to the Mercer/Hunterdon County Line, near Lambertville. NJ St Rt 29 passes through the following towns in Mercer County. Trenton Washington Crossing Titusville
The southern end of NJ St Rt 29. (July, 2019) The southern end of NJ St Rt 29. (April, 2025) A warning sign about the tunnel on NJ St Rt 29, sign on WB I-195. A BGS on SB I-295. The southern begin marker. A BGS on NB NJ St Rt 29. A guide marker near I-195/295. NB NJ St Rt 29 west of I-195/295. SB NJ St Rt 29 near Lamberton Street. NB NJ St Rt 29 at the eastside of the tunnel. NB NJ St Rt 29 in the tunnel at Trenton. SB NJ St Rt 29 in the tunnel in Trenton. SB NJ St Rt 29 at the Trenton-Morrisville Toll Bridge. NB NJ St Rt 29 at U.S. Rt. 1. SB NJ St Rt 29 at U.S. Rt. 1. SB NJ St Rt 29 at Market. SB NJ St Rt 29 at Calhoun Steet. SB NJ St Rt 29 near Calhoun Street. SB NJ St Rt 29 near Hermitage Ave. SB NJ St Rt 29 south of Parkside Ave. A guide marker on SB MCH 579. A BGS on NB NJ St Rt 29. A BGS on SB I-95. (now I-295) A BGS on SB I-295. A guide marker on NB I-295. A guide marker on SB NJ St Rt 29. A guide marker on SB NJ St Rt 29. A BGS on SB NJ St Rt 29. A BGS on SB NJ St Rt 29. A guide marker on SB NJ St Rt 29. SB NJ St Rt 29 near I-295. SB NJ St Rt 29 south of Titusville. A junction marker at the Washington Crossing Bridge. SB NJ St Rt 29 at Washington Crossing. SB NJ St Rt 29 near Washington Crossing. SB NJ St Rt 29 near Grant Street. SB NJ St Rt 29 south of Titusville. SB NJ St Rt 29 near Titusville. SB NJ St Rt 29 near Pleasent Valley Road.