NW Thornton RD over Trib Third Fk Plat
FairDeKalb County, Missouri · S 11 T 60 N R 33 W · Structure no. 12253
- Built
- 1996
- 29 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 42 ft
- 1 main span
- Daily traffic
- 35
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
NW Thornton RD over Trib Third Fk Plat is a steel stringer/multi-beam or girder carrying NW Thornton RD over Trib Third Fk Plat in DeKalb County, Missouri. It was built in 1996, so it is 29 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 6 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 35 vehicles a day, roughly 10% of them trucks, projected to reach 40 by 2044. The structure is 42 ft (12.8 m) long and 42 ft wide. If it were closed, the detour would be 3.7 mi (6 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 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 NW Thornton RD over Trib Third Fk Plat built?
It was built in 1996, making it 29 years old in 2025.
What condition is NW Thornton RD over Trib Third Fk Plat 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 December 2024.
How much traffic does NW Thornton RD over Trib Third Fk Plat carry?
About 35 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is NW Thornton RD over Trib Third Fk Plat?
The structure is 42 ft (12.8 m) long with a longest span of 41 ft (12.5 m) and a deck 42 ft wide.
Who owns NW Thornton RD over Trib Third Fk Plat?
It is owned by the County Highway Agency.