US Bridges

Brunswick Avenue over Ambrose Brook

Fair

Middlesex County, New Jersey · 0.1 MI North of Route 529 · Structure no. 122B515

Built
1985
40 years old
Condition
Fair
inspected March 2023
Type
Culvert
Concrete Continuous
Length
27 ft
2 main spans
Daily traffic
8,603
2023 count
Owner
County
County Highway Agency

About this bridge

Brunswick Avenue over Ambrose Brook is a concrete continuous culvert carrying Brunswick Avenue over Ambrose Brook in Middlesex County, New Jersey. It was built in 1985, so it is 40 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 8,603 vehicles a day, roughly 3% of them trucks, projected to reach 10,497 by 2043. The structure is 27 ft (8.2 m) long and 109 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesBrunswick Avenue
CrossesAmbrose Brook
Location0.1 MI North of Route 529
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.52503, -74.41217
Functional classUrban Collector

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 inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length27 ft (8.2 m)
Longest span12 ft (3.7 m)
Deck width109 ft (33.2 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic8,603 (2023)
Projected traffic10,497 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 Brunswick Avenue over Ambrose Brook built?

It was built in 1985, making it 40 years old in 2025.

What condition is Brunswick Avenue 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 March 2023.

How much traffic does Brunswick Avenue over Ambrose Brook carry?

About 8,603 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Brunswick Avenue over Ambrose Brook?

The structure is 27 ft (8.2 m) long with a longest span of 12 ft (3.7 m) and a deck 109 ft wide.

Who owns Brunswick Avenue over Ambrose Brook?

It is owned by the County Highway Agency.