Nj 31 over Furnace Brook
PoorWarren County, New Jersey · 2.1 MI South of Rt 46 JCT · Structure no. 2111154
- Built
- 1926
- 99 years old, rebuilt 1953
- Condition
- Poor
- inspected September 2024
- Type
- Arch - Deck
- Masonry
- Length
- 30 ft
- 1 main span
- Daily traffic
- 12,730
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Nj 31 over Furnace Brook is a masonry arch - deck carrying Nj 31 over Furnace Brook in Warren County, New Jersey. It was built in 1926 and reconstructed in 1953, 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 poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 12,730 vehicles a day, roughly 4% of them trucks, projected to reach 15,517 by 2042. The structure is 30 ft (9.1 m) long and 94 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nj 31 over Furnace Brook built?
It was built in 1926, making it 99 years old in 2025. It was reconstructed in 1953.
What condition is Nj 31 over Furnace Brook in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.
How much traffic does Nj 31 over Furnace Brook carry?
About 12,730 vehicles per day (2022 count), of which roughly 4% are trucks.
How long is Nj 31 over Furnace Brook?
The structure is 30 ft (9.1 m) long with a longest span of 26 ft (7.9 m) and a deck 94 ft wide.
Who owns Nj 31 over Furnace Brook?
It is owned by the State Highway Agency.