US Bridges

Nj 70 over Bear Swamp River

Fair

Burlington County, New Jersey · 2.5 MI E of 70-541 Inter. · Structure no. 0310153

Built
1931
94 years old, rebuilt 1983
Condition
Fair
inspected November 2023
Type
Slab
Prestressed Concrete
Length
22 ft
1 main span
Daily traffic
27,697
2023 count
Owner
State
State Highway Agency

About this bridge

Nj 70 over Bear Swamp River is a prestressed concrete slab carrying Nj 70 over Bear Swamp River in Burlington County, New Jersey. It was built in 1931 and reconstructed in 1983, so it is 94 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 27,697 vehicles a day, roughly 4% of them trucks, projected to reach 32,580 by 2043. The structure is 22 ft (6.7 m) long and 60 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesNj 70
CrossesBear Swamp River
Location2.5 MI E of 70-541 Inter.
RouteState Highway 70
CountyBurlington County
StateNew Jersey
Coordinates39.89544, -74.77917
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating80 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length22 ft (6.7 m)
Longest span21 ft (6.4 m)
Deck width60 ft (18.3 m)
Roadway width57 ft (17.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,697 (2023)
Projected traffic32,580 by 2043
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Nj 70 over Bear Swamp River built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1983.

What condition is Nj 70 over Bear Swamp 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 November 2023.

How much traffic does Nj 70 over Bear Swamp River carry?

About 27,697 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is Nj 70 over Bear Swamp River?

The structure is 22 ft (6.7 m) long with a longest span of 21 ft (6.4 m) and a deck 60 ft wide.

Who owns Nj 70 over Bear Swamp River?

It is owned by the State Highway Agency.