Ironia Road over Black River
GoodMorris County, New Jersey · 1 MI E Pleasant Hill Road · Structure no. 1400742
- Built
- 1996
- 29 years old
- Condition
- Good
- inspected July 2023
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 3,603
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Ironia Road over Black River is a concrete culvert carrying Ironia Road over Black River in Morris County, New Jersey. It was built in 1996, so it is 29 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 3,603 vehicles a day, roughly 1% of them trucks, projected to reach 4,396 by 2043. The structure is 26 ft (7.9 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 7 Good | Some minor problems. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ironia Road over Black River built?
It was built in 1996, making it 29 years old in 2025.
What condition is Ironia Road over Black 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 Ironia Road over Black River carry?
About 3,603 vehicles per day (2023 count), of which roughly 1% are trucks.
How long is Ironia Road over Black River?
The structure is 26 ft (7.9 m) long with a longest span of 14 ft (4.3 m) and a deck 32 ft wide.
Who owns Ironia Road over Black River?
It is owned by the County Highway Agency.