Nj 173 over South Br Raritan River
FairHunterdon County, New Jersey · 0.54 MI East of RTE I-78 · Structure no. 1004151
- Built
- 1926
- 99 years old, rebuilt 2006
- Condition
- Fair
- inspected August 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 188 ft
- 3 main spans
- Daily traffic
- 10,155
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Nj 173 over South Br Raritan River is a steel girder and floorbeam system carrying Nj 173 over South Br Raritan River in Hunterdon County, New Jersey. It was built in 1926 and reconstructed in 2006, so it is 99 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 10,155 vehicles a day, roughly 4% of them trucks, projected to reach 12,185 by 2044. The structure is 188 ft (57.3 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nj 173 over South Br Raritan River built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 2006.
What condition is Nj 173 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 August 2024.
How much traffic does Nj 173 over South Br Raritan River carry?
About 10,155 vehicles per day (2024 count), of which roughly 4% are trucks.
How long is Nj 173 over South Br Raritan River?
The structure is 188 ft (57.3 m) long with a longest span of 63 ft (19.2 m) and a deck 41 ft wide.
Who owns Nj 173 over South Br Raritan River?
It is owned by the State Highway Agency.