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Traffic Regulations

Orders of the Commissioner of Transportation


Speed Limits for State Roads


Route NJ 31

(a)

The rate of speed designated for  the certain parts of State Highway Route NJ 31 described in this subsection are established and adopted as the maximum legal rate of speed:

1.

In Mercer County:

NOTE: State Highway Route NJ 31 is under municipal (City of Trenton) jurisdiction from approximate mileposts 0.00 to 1.15.

i. In the Township of Ewing:

(1)

For both directions of traffic:

(A) Zone 1: 35 MPH between the southerly terminus of Route NJ 31 at the City of Trenton-Ewing Township corporate line (Parkway Avenue) and Somerset Street, except for 25 MPH when passing through the Incarnation School zone during recess, when the presence of children is clearly visible from the roadway or while children are going to or leaving school, during opening or closing hours (approximate mileposts 1.15 to 2.43); thence

(B) Zone 2: 40 MPH between Somerset Street and Hilltop Road, except for 25 MPH when passing through the Lanning School zone while "25 MPH when flashing" signs are operating and 30 MPH when passing through the Mercer Christian Academy School zone during recess, when the presence of children is clearly visible from the roadway or while children are going to or leaving school during opening or closing hours (approximate mileposts 2.43 to 3.96); thence

(C) Zone 3: 45 MPH between Hilltop Road and the Ewing Township-Hopewell Township corporate line (Bull Run Road) (approximate mileposts 3.96 to 4.72); thence

ii. In the Township of Hopewell and the Borough of Pennington:

(1)

For both directions of traffic:

(A) Zone 1: 45 MPH between the Ewing Township-Hopewell Township corporate line (Bull Run Road) and 2,000 feet north of the Conrail-Reading Railroad underpass (approximate mileposts 4.72 to 7.40); thence

(B) Zone 2: 35 MPH between 2,000 feet north of the Conrail-Reading Railroad underpass and Franklin Avenue (approximate mileposts 7.40 to 8.02); thence

(C) Zone 3: 40 MPH between Franklin Avenue and Woodsville Road (County Route 612) (approximate mileposts 8.0 to 10.19); thence

(D) Zone 4: 45 MPH between Woodsville Road and the Hopewell Township (Mercer County)-West Amwell Township corporate line (County Route 518) (approximate mileposts 10.19 to 12.27); thence

2.

In Hunterdon County:

NOTE: State Highway Route NJ 31 is coincident with State Highway Route US 202 from approximate mileposts 16.36 to 22.02.

i. In the Township of East Amwell:

(1)

For the northbound direction of traffic:

(A) Zone 1: 45 MPH between the Hopewell Township - East Amwell Township corporate line and 1,000 feet north of Harbourton Road (County Route 579) (approximate mileposts 12.27 to 14.16); thence

(B) Zone 2: 50 MPH between 1,000 feet north of Harbourton Road (County Route 579) and Melbourne Lane (beginning of coincidence with Route US 202) (approximate mileposts 14.16 to 16.36); thence

(2)

For the southbound direction of traffic:

(A) Zone 1: 45 MPH between the Hopewell Township – East Amwell Township corporate line and the southernmost East Amwell Township – West Amwell Township corporate line (Woodsville Road) (approximate mileposts 12.27 to 13.38); thence

(B) Zone 2: 50 MPH between the East Amwell Township – West Amwell Township corporate line at the southerly intersection of Rocktown Hill Road and the East Amwell Township – West Amwell Township corporate line at the northerly intersection of Rocktown Hill Road (approximate mileposts 14.82 to 15.30); thence

(C) Zone 3: 50 MPH between the East Amwell Township – West Amwell Township corporate line at Poplar Road and Melbourne Lane (beginning of coincidence with Route US 202) (approximate mileposts 16.07 to 16.36); thence

(3)

For both directions of traffic:

NOTE: Route NJ 31 from approximate mileposts 16.36 to 22.02) is coincident with Route US 202 (approximate mileposts 5.85 to 11.44).  See Route US 202 for speed limit in this section; thence

ii. In the Township of West Amwell:

(1)

For the southbound direction of traffic: 

(A) Zone 1: 45 MPH between the southernmost East Amwell Township – West Amwell Township corporate line (Woodsville Road) and 1,000 feet north of Harbourton Road (County Route 579) (approximate mileposts 13.38 to 14.16); thence

(B) Zone 2: 50 MPH between 1,000 feet north of Harbourton Road (County Route 579) and the East Amwell Township – West Amwell Township corporate line at the southerly intersection of Rocktown Hill Road (approximate mileposts 14.16 to 14.82); thence

(C) Zone 3: 50 MPH between the East Amwell Township – West Amwell Township corporate line at the northerly intersection of Rocktown Hill Road and the East Amwell Township – West Amwell Township corporate line at Poplar Road (approximate mileposts 15.30 to 16.07); thence

iii. In the Borough of Flemington:

(1)

For both directions of traffic:

(A) Zone 1: 40 MPH between the Route US 202/Route NJ 31/Route NJ 12 traffic circle and the  Flemington Borough - Raritan Township corporate line 475 feet north of Church Street (County Route 650) (approximate mileposts 22.02 to 22.30); thence

(B) 40 MPH between the Flemington Borough – Raritan Township corporate line 106 feet south of Bush Road and the Flemington Borough – Raritan Township corporate line at East Main Street – Junction Road, except for 30 MPH when passing through the Hunterdon Central Regional High School zone, during recess when the presence of children is clearly visible from the roadway or while children are going to or leaving school, during opening or closing hours (approximate mileposts 22.94 to 23.13); thence

iv. In the Township of Raritan:

(1)

For both directions of traffic:

(A) Zone 1: 40 MPH between the Flemington Borough – Raritan Township corporate line 475 feet north of Church Street (County Route 650) and the Flemington Borough – Raritan Township corporate line 106 feet south of  Bush Road, except for 30 MPH when passing through the Hunterdon Central Regional High School zone, during recess when the presence of children is clearly visible from the roadway or while children are going to or leaving school, during opening or closing hours (approximate mileposts 22.30 to 22.94); thence

(B) Zone 2: 45 MPH between  the Flemington Borough – Raritan Township corporate line at East Main Street–Junction Road and 1,800 feet north of Bartles Corner Road – Sand Hill Road except for 30 MPH when passing through the Hunterdon Central Regional High School zone, during recess when the presence of children is clearly visible from the roadway or while children are going to or leaving school, during opening or closing hours (approximate mileposts 23.13 to 24.74); thence

(C) Zone 3: 50 MPH between 1,800 feet north of Bartles Corners Road – Sand Hill Road and the southernmost intersection of River Road (relocated) (approximate mileposts 24.74 to 25.35); thence

(D) Zone 4: 55 MPH between the southernmost intersection of River Road (relocated) and the Raritan Township Corporate Line–Readington Township corporate line (approximate mileposts 25.35 to 25.45); thence

v. In the Township of Readington:

(1)

For both directions of traffic:

(A) Zone 1: 55 MPH between the Raritan Township – Readington Township corporate line and the Readington Township - Clinton Township corporate line (approximate mileposts 25.45 to 27.30); thence

vi. In the Township of Clinton:

(1)

For both directions of traffic:

(A) Zone 1: 55 MPH between the Readington Township – Clinton Township corporate line and Country Club Road – Walnut Pond Drive (approximate mileposts 27.30 to 31.62); thence

(B) Zone 2: 50 MPH between Country Club Road – Walnut Pond Drive and the southernmost Clinton Township - Town of Clinton corporate line (approximate mileposts 31.62 to 32.68); thence

(C) Zone 3: 50 MPH between the northernmost Town of Clinton - Clinton Township corporate line and the Clinton Township - Lebanon Township corporate line (approximate mileposts 33.20 to 34.88); thence

vii. In the Town of Clinton:

(1)

For both directions of traffic:

(A)_Zone 1: 50 MPH between the southernmost Clinton Township - Town of Clinton corporate line and the northernmost Town of Clinton - Clinton Township corporate line (approximate mileposts 32.68 to 33.20); thence

viii. In the Township of Lebanon:

(1)

For both directions of traffic:

(A) Zone 1: 50 MPH between the Clinton Township - Lebanon Township corporate line and the Lebanon Township - Glen Gardner Borough corporate line (approximate mileposts 34.88 to 36.61); thence

ix. In the Borough of Glen Gardner:

(1)

For both directions of traffic:

(A) Zone 1: 50 MPH between the Lebanon Township - Glen Gardner Borough corporate line and the Glen Gardner Borough - Hampton Borough corporate line (approximate mileposts 36.61 to 38.30); thence

x. In the Borough of Hampton:

(1)

For both directions of traffic:

(A) Zone 1: 50 MPH between the Glen Gardner Borough - Hampton Borough corporate line and the Hampton Borough -Washington Township corporate line (Musconetcong River) (approximate mileposts 38.30 to 39.43); thence

3.

In Warren County:

i. In the Township of Washington:

(1)

For both directions of traffic:

(A) Zone 1: 50 MPH between the Hampton Township - Washington Township  corporate line (Musconetcong River) and 600 feet south of Broad Street (approximate mileposts 39.43 to 42.02); thence

(B) Zone 2: 45 MPH between 600 feet south of Broad Street and 35 feet south of Mozart Avenue (approximate mileposts 42.02 to 42.30); thence

(C) Zone 3: 35 MPH between 35 feet south of Mozart Avenue and the southernmost Washington Township - Washington Borough corporate line (approximate mileposts 42.31 to 42.47).

(D) Zone 4: 45 MPH between the northernmost Washington Borough-Washington Township corporate line and 350 feet north of Essex Road (approximate mileposts 43.55 to 43.62); thence

(E) Zone 5: 50 MPH between 350 feet north of Essex Road and the southernmost Washington Township - Mansfield Township corporate line (approximate mileposts 43.62 to 45.15); thence

ii. In the Borough of Washington:

(1)

For both directions of traffic:

(A) Zone 1: 35 MPH between the southernmost Washington Township - Washington Borough corporate line and 700 feet north of Myrtle Avenue (approximate mileposts 42.47 to 43.27); thence

(B) Zone 2: 45 MPH between 700 feet north of Myrtle Avenue and the northernmost Washington Borough - Washington Township corporate line (approximate mileposts 43.27 to 43.55); thence

iii. In the Townships of Washington and Mansfield:

(1)

For both directions of traffic:

(A) Zone 1: 50 MPH between the southernmost Washington Township – Mansfield Township corporate line and the Washington Township - Mansfield Township/Oxford Township corporate line (approximate mileposts 45.15 to 46.14); thence

iv. In the Township of Oxford:

(1)

For both directions of traffic:

(A) Zone 1: 40 MPH between the northernmost Washington Township-Mansfield Township/Oxford Township corporate line and Wall Street (approximate mileposts 46.14 to 46.85); thence

(B) Zone 2: 45 MPH between Wall Street and the Oxford Township – White Township corporate line (approximate mileposts 46.85 to 48.34); thence

v.  In the Township of White:

(1)

For both directions of traffic:

(A) Zone 1: 45 MPH between the Oxford Township – White Township corporate line and Route US 46 (end of route) (approximate mileposts 48.34 to 48.93).

 

 
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  Department of Transportation
  P.O. Box 600
  Trenton, NJ 08625-0600
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  Last Updated:  October 15, 2012