Ridgedale Avenue over Trib. of Whippany River
GoodMorris County, New Jersey · 0.4MI W of NJ24&I-287 JCT · Structure no. 1400376
- Built
- 1974
- 51 years old, rebuilt 2018
- Condition
- Good
- inspected July 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 28 ft
- 1 main span
- Daily traffic
- 18,494
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Ridgedale Avenue over Trib. of Whippany River is a steel stringer/multi-beam or girder carrying Ridgedale Avenue over Trib. of Whippany River in Morris County, New Jersey. It was built in 1974 and reconstructed in 2018, so it is 51 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 18,494 vehicles a day, roughly 4% of them trucks, projected to reach 22,566 by 2043. The structure is 28 ft (8.5 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| 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 Ridgedale Avenue over Trib. of Whippany River built?
It was built in 1974, making it 51 years old in 2025. It was reconstructed in 2018.
What condition is Ridgedale Avenue over Trib. of Whippany River 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 July 2023.
How much traffic does Ridgedale Avenue over Trib. of Whippany River carry?
About 18,494 vehicles per day (2023 count), of which roughly 4% are trucks.
How long is Ridgedale Avenue over Trib. of Whippany River?
The structure is 28 ft (8.5 m) long with a longest span of 23 ft (7 m) and a deck 60 ft wide.
Who owns Ridgedale Avenue over Trib. of Whippany River?
It is owned by the County Highway Agency.