US Bridges

Stelton Rd(cr 529) over Ambrose Brook

Fair

Middlesex County, New Jersey · 1.1 MI S of New Durhm RD · Structure no. 122B116

Built
1988
37 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
19,625
2023 count
Owner
County
County Highway Agency

About this bridge

Stelton Rd(cr 529) over Ambrose Brook is a concrete culvert carrying Stelton Rd(cr 529) over Ambrose Brook in Middlesex County, New Jersey. It was built in 1988, so it is 37 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 19,625 vehicles a day, roughly 4% of them trucks, projected to reach 23,946 by 2043. The structure is 34 ft (10.4 m) long and 84 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesStelton Rd(cr 529)
CrossesAmbrose Brook
Location1.1 MI S of New Durhm RD
RouteCounty Highway 529
CountyMiddlesex County
StateNew Jersey
Coordinates40.53263, -74.41892
Functional classUrban Other Principal 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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 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 evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length34 ft (10.4 m)
Longest span15 ft (4.6 m)
Deck width84 ft (25.6 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,625 (2023)
Projected traffic23,946 by 2043
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 Stelton Rd(cr 529) over Ambrose Brook built?

It was built in 1988, making it 37 years old in 2025.

What condition is Stelton Rd(cr 529) over Ambrose 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 April 2023.

How much traffic does Stelton Rd(cr 529) over Ambrose Brook carry?

About 19,625 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Stelton Rd(cr 529) over Ambrose Brook?

The structure is 34 ft (10.4 m) long with a longest span of 15 ft (4.6 m) and a deck 84 ft wide.

Who owns Stelton Rd(cr 529) over Ambrose Brook?

It is owned by the County Highway Agency.