NW 278th ST over Roberts Br
FairPosted for loadClinton County, Missouri · S 9 T 55 N R 32 W · Structure no. 22188
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected December 2024
- Type
- Girder and Floorbeam System
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 25
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
NW 278th ST over Roberts Br is a steel girder and floorbeam system carrying NW 278th ST over Roberts Br in Clinton County, Missouri. It was built in 1986, so it is 39 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. Its operating status is: posted for load restriction.
It carries about 25 vehicles a day, roughly 10% of them trucks, projected to reach 29 by 2043. The structure is 43 ft (13.1 m) long and 24 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was NW 278th ST over Roberts Br built?
It was built in 1986, making it 39 years old in 2025.
What condition is NW 278th ST over Roberts 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 December 2024.
How much traffic does NW 278th ST over Roberts Br carry?
About 25 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is NW 278th ST over Roberts Br?
The structure is 43 ft (13.1 m) long with a longest span of 42 ft (12.8 m) and a deck 24 ft wide.
Who owns NW 278th ST over Roberts Br?
It is owned by the County Highway Agency.