Iron Bridge Road over Raritan Valley Line
FairPosted for loadHunterdon County, New Jersey · 4.0 MI NW I-78&CR635 JCT · Structure no. 1061165
- Built
- 1852
- 173 years old, rebuilt 2002
- Condition
- Fair
- inspected January 2023
- Type
- Girder and Floorbeam System
- Steel
- Length
- 51 ft
- 1 main span
- Daily traffic
- 125
- 2023 count
- Owner
- State
- Other State Agency
About this bridge
Iron Bridge Road over Raritan Valley Line is a steel girder and floorbeam system carrying Iron Bridge Road over Raritan Valley Line in Hunterdon County, New Jersey. It was built in 1852 and reconstructed in 2002, so it is 173 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 125 vehicles a day, roughly 3% of them trucks, projected to reach 170 by 2043. The structure is 51 ft (15.5 m) long and 13 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Iron Bridge Road over Raritan Valley Line built?
It was built in 1852, making it 173 years old in 2025. It was reconstructed in 2002.
What condition is Iron Bridge Road over Raritan Valley Line 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 January 2023.
How much traffic does Iron Bridge Road over Raritan Valley Line carry?
About 125 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Iron Bridge Road over Raritan Valley Line?
The structure is 51 ft (15.5 m) long with a longest span of 47 ft (14.3 m) and a deck 13 ft wide.
Who owns Iron Bridge Road over Raritan Valley Line?
It is owned by the Other State Agency.