Is 70 W over KCS RR
PoorLafayette County, Missouri · S 36 T 49 N R 28 W · Structure no. 139
- Built
- 1963
- 62 years old, rebuilt 1994
- Condition
- Poor
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 231 ft
- 3 main spans
- Daily traffic
- 17,593
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 70 W over KCS RR is a steel continuous stringer/multi-beam or girder carrying Is 70 W over KCS RR in Lafayette County, Missouri. It was built in 1963 and reconstructed in 1994, so it is 62 years old, older 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 4 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 17,593 vehicles a day, roughly 35% of them trucks, projected to reach 32,547 by 2044. The structure is 231 ft (70.4 m) long and 41 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 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 | 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 70 W over KCS RR built?
It was built in 1963, making it 62 years old in 2025. It was reconstructed in 1994.
What condition is Is 70 W over KCS RR 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 January 2025.
How much traffic does Is 70 W over KCS RR carry?
About 17,593 vehicles per day (2024 count), of which roughly 35% are trucks.
How long is Is 70 W over KCS RR?
The structure is 231 ft (70.4 m) long with a longest span of 55 ft (16.8 m) and a deck 41 ft wide.
Who owns Is 70 W over KCS RR?
It is owned by the State Highway Agency.