Rp Richardson RD T over Is 55
FairJefferson County, Missouri · S 31 T 43 N R 6 E · Structure no. 4399
- Built
- 1996
- 29 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 471 ft
- 2 main spans
- Daily traffic
- 11,111
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rp Richardson RD T over Is 55 is a steel continuous stringer/multi-beam or girder carrying Rp Richardson RD T over Is 55 in Jefferson County, Missouri. It was built in 1996, so it is 29 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 11,111 vehicles a day, roughly 18% of them trucks, projected to reach 20,555 by 2044. The structure is 471 ft (143.6 m) long and 42 ft wide. If it were closed, the detour would be 9.9 mi (16 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rp Richardson RD T over Is 55 built?
It was built in 1996, making it 29 years old in 2025.
What condition is Rp Richardson RD T over Is 55 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 November 2024.
How much traffic does Rp Richardson RD T over Is 55 carry?
About 11,111 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is Rp Richardson RD T over Is 55?
The structure is 471 ft (143.6 m) long with a longest span of 187 ft (57 m) and a deck 42 ft wide.
Who owns Rp Richardson RD T over Is 55?
It is owned by the State Highway Agency.