Rt N S over Black Rvr
FairIron County, Missouri · S 30 T 34 N R 3 E · Structure no. 1885
- Built
- 1976
- 49 years old
- Condition
- Fair
- inspected October 2023
- Type
- Culvert
- Concrete
- Length
- 71 ft
- 3 main spans
- Daily traffic
- 1,062
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rt N S over Black Rvr is a concrete culvert carrying Rt N S over Black Rvr in Iron County, Missouri. It was built in 1976, so it is 49 years old, older than the Missouri average of 45.1 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 1,062 vehicles a day, roughly 17% of them trucks, projected to reach 1,487 by 2044. The structure is 71 ft (21.5 m) long and 48 ft wide. If it were closed, the detour would be 46 mi (74 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 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 Rt N S over Black Rvr built?
It was built in 1976, making it 49 years old in 2025.
What condition is Rt N S over Black Rvr 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 October 2023.
How much traffic does Rt N S over Black Rvr carry?
About 1,062 vehicles per day (2024 count), of which roughly 17% are trucks.
How long is Rt N S over Black Rvr?
The structure is 71 ft (21.5 m) long with a longest span of 16 ft (4.9 m) and a deck 48 ft wide.
Who owns Rt N S over Black Rvr?
It is owned by the State Highway Agency.