Is 70 E over Rt K CO OR70W to OR70E
FairPosted for loadSt. Charles County, Missouri · S 32 T 47 N R 3 E · Structure no. 6449
- Built
- 1955
- 70 years old, rebuilt 1971
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 168 ft
- 4 main spans
- Daily traffic
- 107,979
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 70 E over Rt K CO OR70W to OR70E is a steel continuous stringer/multi-beam or girder carrying Is 70 E over Rt K CO OR70W to OR70E in St. Charles County, Missouri. It was built in 1955 and reconstructed in 1971, so it is 70 years old, older 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. Its operating status is: posted for load restriction.
It carries about 107,979 vehicles a day, roughly 12% of them trucks, projected to reach 183,564 by 2044. The structure is 168 ft (51.2 m) long and 111 ft wide. If it were closed, the detour would be 0.6 mi (1 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 70 E over Rt K CO OR70W to OR70E built?
It was built in 1955, making it 70 years old in 2025. It was reconstructed in 1971.
What condition is Is 70 E over Rt K CO OR70W to OR70E 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 September 2023.
How much traffic does Is 70 E over Rt K CO OR70W to OR70E carry?
About 107,979 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is Is 70 E over Rt K CO OR70W to OR70E?
The structure is 168 ft (51.2 m) long with a longest span of 47 ft (14.3 m) and a deck 111 ft wide.
Who owns Is 70 E over Rt K CO OR70W to OR70E?
It is owned by the State Highway Agency.