US Bridges

Perrineville Road over Millstone River

Good

Middlesex County, New Jersey · 0.71 Mile North of Nj 33 · Structure no. 125B131

Built
2018
7 years old
Condition
Good
inspected April 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
75 ft
1 main span
Daily traffic
6,298
2023 count
Owner
County
County Highway Agency

About this bridge

Perrineville Road over Millstone River is a prestressed concrete box beam or girders - multiple carrying Perrineville Road over Millstone River in Middlesex County, New Jersey. It was built in 2018, so it is 7 years old, younger than the New Jersey average of 58.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,298 vehicles a day, roughly 4% of them trucks, projected to reach 7,684 by 2043. The structure is 75 ft (22.9 m) long and 46 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesPerrineville Road
CrossesMillstone River
Location0.71 Mile North of Nj 33
RouteCounty Highway 625
CountyMiddlesex County
StateNew Jersey
Coordinates40.27196, -74.43724
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.5 US tons
Inventory rating51 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length75 ft (22.9 m)
Longest span69 ft (21 m)
Deck width46 ft (13.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,298 (2023)
Projected traffic7,684 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.2 mi (10 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Perrineville Road over Millstone River built?

It was built in 2018, making it 7 years old in 2025.

What condition is Perrineville Road over Millstone River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.

How much traffic does Perrineville Road over Millstone River carry?

About 6,298 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Perrineville Road over Millstone River?

The structure is 75 ft (22.9 m) long with a longest span of 69 ft (21 m) and a deck 46 ft wide.

Who owns Perrineville Road over Millstone River?

It is owned by the County Highway Agency.