Mill Street over South Br. Raritan Riv.
FairHunterdon County, New Jersey · 1000 Ft.Se of Rt 513 · Structure no. 1000053
- Built
- 1920
- 105 years old
- Condition
- Fair
- inspected April 2023
- Type
- Arch - Deck
- Concrete
- Length
- 115 ft
- 2 main spans
- Daily traffic
- 3,572
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Mill Street over South Br. Raritan Riv. is a concrete arch - deck carrying Mill Street over South Br. Raritan Riv. in Hunterdon County, New Jersey. It was built in 1920, so it is 105 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.
It carries about 3,572 vehicles a day, roughly 3% of them trucks, projected to reach 4,358 by 2043. The structure is 115 ft (35.1 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 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 |
|---|---|---|
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 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 Mill Street over South Br. Raritan Riv. built?
It was built in 1920, making it 105 years old in 2025.
What condition is Mill Street over South Br. Raritan Riv. 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 Mill Street over South Br. Raritan Riv. carry?
About 3,572 vehicles per day (2023 count), of which roughly 3% are trucks.
How long is Mill Street over South Br. Raritan Riv.?
The structure is 115 ft (35.1 m) long with a longest span of 55 ft (16.8 m) and a deck 45 ft wide.
Who owns Mill Street over South Br. Raritan Riv.?
It is owned by the County Highway Agency.