US Bridges

Springfield AV-512 over Salt Brook

Fair

Union County, New Jersey · 0.1 Miles West of CR 647 · Structure no. 2011047

Built
1958
67 years old
Condition
Fair
inspected March 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
47 ft
2 main spans
Daily traffic
10,540
2024 count
Owner
County
County Highway Agency

About this bridge

Springfield AV-512 over Salt Brook is a prestressed concrete box beam or girders - multiple carrying Springfield AV-512 over Salt Brook in Union County, New Jersey. It was built in 1958, so it is 67 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 5 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 10,540 vehicles a day, roughly 4% of them trucks, projected to reach 12,860 by 2044. The structure is 47 ft (14.3 m) long and 57 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesSpringfield AV-512
CrossesSalt Brook
Location0.1 Miles West of CR 647
RouteCounty Highway 512
CountyUnion County
StateNew Jersey
Coordinates40.70517, -74.40808
Functional classUrban Minor 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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating87 US tons
Inventory rating49.1 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans2
Design loadHS 20
Structure length47 ft (14.3 m)
Longest span22 ft (6.7 m)
Deck width57 ft (17.5 m)
Roadway width46 ft (13.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10,540 (2024)
Projected traffic12,860 by 2044
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed3.1 mi (5 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 Springfield AV-512 over Salt Brook built?

It was built in 1958, making it 67 years old in 2025.

What condition is Springfield AV-512 over Salt 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 2024.

How much traffic does Springfield AV-512 over Salt Brook carry?

About 10,540 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is Springfield AV-512 over Salt Brook?

The structure is 47 ft (14.3 m) long with a longest span of 22 ft (6.7 m) and a deck 57 ft wide.

Who owns Springfield AV-512 over Salt Brook?

It is owned by the County Highway Agency.