US Bridges

Hamden Road over South Br Raritan River

FairPosted for load

Hunterdon County, New Jersey · 0.6 MI South of River RD · Structure no. 10XXF65

Built
1885
140 years old, rebuilt 1993
Condition
Fair
inspected March 2023
Type
Truss - Thru
Aluminum, Wrought Iron, or Cast Iron
Length
162 ft
2 main spans
Daily traffic
179
2023 count
Owner
County
County Highway Agency

About this bridge

Hamden Road over South Br Raritan River is a aluminum, wrought iron, or cast iron truss - thru carrying Hamden Road over South Br Raritan River in Hunterdon County, New Jersey. It was built in 1885 and reconstructed in 1993, so it is 140 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. Its operating status is: posted for load restriction.

It carries about 179 vehicles a day, projected to reach 215 by 2043. The structure is 162 ft (49.4 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesHamden Road
CrossesSouth Br Raritan River
Location0.6 MI South of River RD
RouteCity Street 0
CountyHunterdon County
StateNew Jersey
Coordinates40.59633, -74.89817
Functional classUrban 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
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating13 US tons
Inventory rating6 US tons

Structure

Structure typeTruss - Thru
MaterialAluminum, Wrought Iron, or Cast Iron
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length162 ft (49.4 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179 (2023)
Projected traffic215 by 2043
Trucks0%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusEligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$2.8 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Hamden Road over South Br Raritan River built?

It was built in 1885, making it 140 years old in 2025. It was reconstructed in 1993.

What condition is Hamden Road over South Br Raritan 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 March 2023.

How much traffic does Hamden Road over South Br Raritan River carry?

About 179 vehicles per day (2023 count).

How long is Hamden Road over South Br Raritan River?

The structure is 162 ft (49.4 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns Hamden Road over South Br Raritan River?

It is owned by the County Highway Agency.