New Jersey Route 170

Route 170
Route 170 as it existed highlighted in red
Route information
Maintained by New Jersey Department of Transportation
Length	0.79 mi[1] (1,270 m)
Existed	1957–1986
Major junctions
South end	US 206 in Mansfield Township
North end	US 206 in Columbus
Location
Country	United States
State	New Jersey
Counties	Burlington
Highway system
New Jersey State Highway Routes Interstate US State Scenic Byways
← Route 169 → Route 171
← CR 688 → CR 691

Route 170 was a short, 0.79-mile (1.27 km) state highway in Burlington County, New Jersey, United States. The route was a former alignment of U.S. Route 206 and New Jersey Route 39 in the downtown portions of Mansfield Township and Columbus. Route 170 began at an intersection with U.S. Route 206 in Mansfield Township, headed northward along Atlantic Avenue and New York Avenue in Columbus before merging with U.S. Route 206 at a wye connection further north.

The highway was assigned as part of Route 39 in the state highway renumbering in 1927. The route remained intact, receiving a concurrency through the two communities when U.S. Route 206 was assigned in the mid-1930s. The two routes remained intact until the state highway renumbering on January 1, 1953, when Route 39 was decommissioned in favor of just U.S. Route 206. The highway was bypassed in 1957, with Route 206 heading to the outside of the communities. The original alignment became Route 170, and lasted until 1986, when it was removed from the state maintenance. The state turned the alignment over to Burlington County, who re-designated it as County Route 690.