Mt Airy RD (CR525) over Harrisons Brook
GoodSomerset County, New Jersey · At Valley Road Jct. · Structure no. 18G1103
- Built
- 1985
- 40 years old
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Concrete
- Length
- 65 ft
- 2 main spans
- Daily traffic
- 23,883
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Mt Airy RD (CR525) over Harrisons Brook is a concrete culvert carrying Mt Airy RD (CR525) over Harrisons Brook in Somerset County, New Jersey. It was built in 1985, so it is 40 years old, younger than the New Jersey average of 58.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 23,883 vehicles a day, roughly 4% of them trucks, projected to reach 29,141 by 2043. The structure is 65 ft (19.8 m) long and 110 ft wide. If it were closed, the detour would be 6.2 mi (10 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mt Airy RD (CR525) over Harrisons Brook built?
It was built in 1985, making it 40 years old in 2025.
What condition is Mt Airy RD (CR525) over Harrisons Brook in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does Mt Airy RD (CR525) over Harrisons Brook carry?
About 23,883 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Mt Airy RD (CR525) over Harrisons Brook?
The structure is 65 ft (19.8 m) long with a longest span of 26 ft (7.9 m) and a deck 110 ft wide.
Who owns Mt Airy RD (CR525) over Harrisons Brook?
It is owned by the County Highway Agency.