18th ST over Iowa Br
FairJasper County, Missouri · S 11 T 27 N R 32 W · Structure no. 31238
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected February 2025
- Type
- Culvert
- Concrete Continuous
- Length
- 26 ft
- 4 main spans
- Daily traffic
- 200
- 2025 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
18th ST over Iowa Br is a concrete continuous culvert carrying 18th ST over Iowa Br in Jasper County, Missouri. It was built in 1990, so it is 35 years old, younger 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2045. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 1.2 mi (2 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 | 8 Very Good | No problems noted. |
| 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 18th ST over Iowa Br built?
It was built in 1990, making it 35 years old in 2025.
What condition is 18th ST over Iowa Br 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 February 2025.
How much traffic does 18th ST over Iowa Br carry?
About 200 vehicles per day (2025 count), of which roughly 10% are trucks.
How long is 18th ST over Iowa Br?
The structure is 26 ft (7.9 m) long with a longest span of 5 ft (1.5 m).
Who owns 18th ST over Iowa Br?
It is owned by the City or Municipal Highway Agency.