US Bridges

Stephensburg Road over Musconetcong River

Fair

Warren County, New Jersey · 20 Ft South of Nj 57 JCT · Structure no. 2101606

Built
1875
150 years old, rebuilt 2005
Condition
Fair
inspected April 2023
Type
Arch - Deck
Concrete
Length
58 ft
3 main spans
Daily traffic
831
2023 count
Owner
County
County Highway Agency

About this bridge

Stephensburg Road over Musconetcong River is a concrete arch - deck carrying Stephensburg Road over Musconetcong River in Warren County, New Jersey. It was built in 1875 and reconstructed in 2005, so it is 150 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 831 vehicles a day, roughly 3% of them trucks, projected to reach 1,014 by 2043. The structure is 58 ft (17.7 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

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CarriesStephensburg Road
CrossesMusconetcong River
Location20 Ft South of Nj 57 JCT
RouteCity Street 0
CountyWarren County
StateNew Jersey
Coordinates40.79446, -74.87378
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourCountermeasures installed to correct a previously existing problem
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 25 or greater
Structure length58 ft (17.7 m)
Longest span16 ft (4.9 m)
Deck width30 ft (9 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic831 (2023)
Projected traffic1,014 by 2043
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Stephensburg Road over Musconetcong River built?

It was built in 1875, making it 150 years old in 2025. It was reconstructed in 2005.

What condition is Stephensburg Road over Musconetcong 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 April 2023.

How much traffic does Stephensburg Road over Musconetcong River carry?

About 831 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is Stephensburg Road over Musconetcong River?

The structure is 58 ft (17.7 m) long with a longest span of 16 ft (4.9 m) and a deck 30 ft wide.

Who owns Stephensburg Road over Musconetcong River?

It is owned by the County Highway Agency.