US Bridges

1st Avenue over Ambrose Brook

Good

Middlesex County, New Jersey · 1 MI North of I-287 · Structure no. 122B517

Built
2016
9 years old
Condition
Good
inspected June 2023
Type
Culvert
Concrete
Length
32 ft
1 main span
Daily traffic
573
2023 count
Owner
County
County Highway Agency

About this bridge

1st Avenue over Ambrose Brook is a concrete culvert carrying 1st Avenue over Ambrose Brook in Middlesex County, New Jersey. It was built in 2016, so it is 9 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 573 vehicles a day, roughly 1% of them trucks, projected to reach 700 by 2043. The structure is 32 ft (9.8 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
Carries1st Avenue
CrossesAmbrose Brook
Location1 MI North of I-287
RouteCity Street 0
CountyMiddlesex County
StateNew Jersey
Coordinates40.55697, -74.49207
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99 US tons
Inventory rating61 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length32 ft (9.8 m)
Longest span29 ft (8.8 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic573 (2023)
Projected traffic700 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.5 million
NavigationNo navigation control on waterway

Frequently asked questions

When was 1st Avenue over Ambrose Brook built?

It was built in 2016, making it 9 years old in 2025.

What condition is 1st Avenue over Ambrose Brook 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 June 2023.

How much traffic does 1st Avenue over Ambrose Brook carry?

About 573 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is 1st Avenue over Ambrose Brook?

The structure is 32 ft (9.8 m) long with a longest span of 29 ft (8.8 m) and a deck 43 ft wide.

Who owns 1st Avenue over Ambrose Brook?

It is owned by the County Highway Agency.