US Bridges

S. Orange Avenue over Slough Brook

Good

Essex County, New Jersey · 0.42 MI West of CR 649 · Structure no. 0700001

Built
1965
60 years old
Condition
Good
inspected July 2023
Type
Slab
Concrete
Length
25 ft
1 main span
Daily traffic
21,226
2023 count
Owner
County
County Highway Agency

About this bridge

S. Orange Avenue over Slough Brook is a concrete slab carrying S. Orange Avenue over Slough Brook in Essex County, New Jersey. It was built in 1965, so it is 60 years old, older 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 21,226 vehicles a day, roughly 4% of them trucks, projected to reach 25,471 by 2043. The structure is 25 ft (7.6 m) long and 75 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesS. Orange Avenue
CrossesSlough Brook
Location0.42 MI West of CR 649
RouteCounty Highway 510
Coordinates40.76568, -74.33813
Functional classUrban Other Principal Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating53 US tons
Inventory rating32 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span23 ft (7 m)
Deck width75 ft (22.9 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic21,226 (2023)
Projected traffic25,471 by 2043
Trucks4%
Lanes on structure4
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S. Orange Avenue over Slough Brook built?

It was built in 1965, making it 60 years old in 2025.

What condition is S. Orange Avenue over Slough 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 July 2023.

How much traffic does S. Orange Avenue over Slough Brook carry?

About 21,226 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is S. Orange Avenue over Slough Brook?

The structure is 25 ft (7.6 m) long with a longest span of 23 ft (7 m) and a deck 75 ft wide.

Who owns S. Orange Avenue over Slough Brook?

It is owned by the County Highway Agency.