Is 635 S over Cst High DR
FairPosted for loadPlatte County, Missouri · S 4 T 50 N R 33 W · Structure no. 2149
- Built
- 1972
- 53 years old, rebuilt 1991
- Condition
- Fair
- inspected October 2024
- Type
- Slab
- Concrete Continuous
- Length
- 146 ft
- 3 main spans
- Daily traffic
- 24,505
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 635 S over Cst High DR is a concrete continuous slab carrying Is 635 S over Cst High DR in Platte County, Missouri. It was built in 1972 and reconstructed in 1991, so it is 53 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 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 24,505 vehicles a day, roughly 18% of them trucks, projected to reach 50,235 by 2044. The structure is 146 ft (44.5 m) long and 52 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 635 S over Cst High DR built?
It was built in 1972, making it 53 years old in 2025. It was reconstructed in 1991.
What condition is Is 635 S over Cst High DR 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 2024.
How much traffic does Is 635 S over Cst High DR carry?
About 24,505 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is Is 635 S over Cst High DR?
The structure is 146 ft (44.5 m) long with a longest span of 70 ft (21.3 m) and a deck 52 ft wide.
Who owns Is 635 S over Cst High DR?
It is owned by the State Highway Agency.