US Bridges

Northfield AV.C508 over W.Br. Rahway River

Fair

Essex County, New Jersey · 0.17 Miles East of CR 636 · Structure no. 0700028

Built
1938
87 years old, rebuilt 2000
Condition
Fair
inspected August 2024
Type
Slab
Prestressed Concrete
Length
32 ft
1 main span
Daily traffic
22,864
2022 count
Owner
County
County Highway Agency

About this bridge

Northfield AV.C508 over W.Br. Rahway River is a prestressed concrete slab carrying Northfield AV.C508 over W.Br. Rahway River in Essex County, New Jersey. It was built in 1938 and reconstructed in 2000, so it is 87 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 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 22,864 vehicles a day, roughly 4% of them trucks, projected to reach 27,899 by 2042. The structure is 32 ft (9.8 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNorthfield AV.C508
CrossesW.Br. Rahway River
Location0.17 Miles East of CR 636
RouteCounty Highway 508
CountyEssex County
StateNew Jersey
Coordinates40.76942, -74.2834
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.1 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width100 ft (30.5 m)
Roadway width66 ft (20 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22,864 (2022)
Projected traffic27,899 by 2042
Trucks4%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Northfield AV.C508 over W.Br. Rahway River built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 2000.

What condition is Northfield AV.C508 over W.Br. Rahway River 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 August 2024.

How much traffic does Northfield AV.C508 over W.Br. Rahway River carry?

About 22,864 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Northfield AV.C508 over W.Br. Rahway River?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 100 ft wide.

Who owns Northfield AV.C508 over W.Br. Rahway River?

It is owned by the County Highway Agency.