US Bridges

Applegarth Road over Cranbury Brook

Fair

Middlesex County, New Jersey · .2 Miles North of CR 615 · Structure no. 125B144

Built
1986
39 years old
Condition
Fair
inspected March 2023
Type
Slab
Prestressed Concrete
Length
41 ft
1 main span
Daily traffic
13,296
2023 count
Owner
County
County Highway Agency

About this bridge

Applegarth Road over Cranbury Brook is a prestressed concrete slab carrying Applegarth Road over Cranbury Brook in Middlesex County, New Jersey. It was built in 1986, so it is 39 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 13,296 vehicles a day, roughly 3% of them trucks, projected to reach 16,224 by 2043. The structure is 41 ft (12.5 m) long and 52 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesApplegarth Road
CrossesCranbury Brook
Location.2 Miles North of CR 615
RouteCounty Highway 619
CountyMiddlesex County
StateNew Jersey
Coordinates40.30512, -74.47325
Functional classUrban Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating82 US tons
Inventory rating46 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length41 ft (12.5 m)
Longest span37 ft (11.3 m)
Deck width52 ft (16 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,296 (2023)
Projected traffic16,224 by 2043
Trucks3%
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Applegarth Road over Cranbury Brook built?

It was built in 1986, making it 39 years old in 2025.

What condition is Applegarth Road over Cranbury Brook in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2023.

How much traffic does Applegarth Road over Cranbury Brook carry?

About 13,296 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Applegarth Road over Cranbury Brook?

The structure is 41 ft (12.5 m) long with a longest span of 37 ft (11.3 m) and a deck 52 ft wide.

Who owns Applegarth Road over Cranbury Brook?

It is owned by the County Highway Agency.