400 TH ST over Island CR
PoorGentry County, Missouri · S 25 T 62 N R 33 W · Structure no. 22315
- Built
- 1984
- 41 years old, rebuilt 1997
- Condition
- Poor
- inspected March 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 80 ft
- 3 main spans
- Daily traffic
- 35
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
400 TH ST over Island CR is a steel stringer/multi-beam or girder carrying 400 TH ST over Island CR in Gentry County, Missouri. It was built in 1984 and reconstructed in 1997, so it is 41 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 80 ft (24.4 m) long and 16 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 400 TH ST over Island CR built?
It was built in 1984, making it 41 years old in 2025. It was reconstructed in 1997.
What condition is 400 TH ST over Island CR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in March 2023.
How much traffic does 400 TH ST over Island CR carry?
About 35 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is 400 TH ST over Island CR?
The structure is 80 ft (24.4 m) long with a longest span of 40 ft (12.2 m) and a deck 16 ft wide.
Who owns 400 TH ST over Island CR?
It is owned by the County Highway Agency.