Cedar Hill RD over Trib of Big Rvr
FairJefferson County, Missouri · S 18 T 42 N R 4 E · Structure no. 17356
- Built
- 1900
- 125 years old, rebuilt 1990
- Condition
- Fair
- inspected February 2025
- Type
- Slab
- Prestressed Concrete Continuous
- Length
- 24 ft
- 1 main span
- Daily traffic
- 1,500
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Cedar Hill RD over Trib of Big Rvr is a prestressed concrete continuous slab carrying Cedar Hill RD over Trib of Big Rvr in Jefferson County, Missouri. It was built in 1900 and reconstructed in 1990, so it is 125 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.
It carries about 1,500 vehicles a day, roughly 2% of them trucks, projected to reach 2,550 by 2043. The structure is 24 ft (7.3 m) long and 26 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cedar Hill RD over Trib of Big Rvr built?
It was built in 1900, making it 125 years old in 2025. It was reconstructed in 1990.
What condition is Cedar Hill RD over Trib of Big Rvr 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 February 2025.
How much traffic does Cedar Hill RD over Trib of Big Rvr carry?
About 1,500 vehicles per day (2023 count), of which roughly 2% are trucks.
How long is Cedar Hill RD over Trib of Big Rvr?
The structure is 24 ft (7.3 m) long with a longest span of 22 ft (6.7 m) and a deck 26 ft wide.
Who owns Cedar Hill RD over Trib of Big Rvr?
It is owned by the County Highway Agency.