Mo 185 S over St. Johns CR
FairFranklin County, Missouri · S 19 T 43 N R 2 W · Structure no. 30198
- Built
- 2004
- 21 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 264 ft
- 3 main spans
- Daily traffic
- 1,477
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 185 S over St. Johns CR is a steel continuous stringer/multi-beam or girder carrying Mo 185 S over St. Johns CR in Franklin County, Missouri. It was built in 2004, so it is 21 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 1,477 vehicles a day, roughly 7% of them trucks, projected to reach 2,806 by 2044. The structure is 264 ft (80.5 m) long and 43 ft wide. If it were closed, the detour would be 19.9 mi (32 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 | 7 Good | Some minor problems. |
| 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 Mo 185 S over St. Johns CR built?
It was built in 2004, making it 21 years old in 2025.
What condition is Mo 185 S over St. Johns CR 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 Mo 185 S over St. Johns CR carry?
About 1,477 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is Mo 185 S over St. Johns CR?
The structure is 264 ft (80.5 m) long with a longest span of 110 ft (33.5 m) and a deck 43 ft wide.
Who owns Mo 185 S over St. Johns CR?
It is owned by the State Highway Agency.