Rp IS270W to IS55N over Is 55 Is 55
FairSt. Louis County, Missouri · S 34 T 43 N R 6 E · Structure no. 1015
- Built
- 1964
- 61 years old, rebuilt 1991
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Single or Spread
- Concrete Continuous
- Length
- 314 ft
- 5 main spans
- Daily traffic
- 13,959
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Rp IS270W to IS55N over Is 55 Is 55 is a concrete continuous box beam or girders - single or spread carrying Rp IS270W to IS55N over Is 55 Is 55 in St. Louis County, Missouri. It was built in 1964 and reconstructed in 1991, so it is 61 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 13,959 vehicles a day, roughly 18% of them trucks, projected to reach 17,449 by 2044. The structure is 314 ft (95.7 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Rp IS270W to IS55N over Is 55 Is 55 built?
It was built in 1964, making it 61 years old in 2025. It was reconstructed in 1991.
What condition is Rp IS270W to IS55N over Is 55 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 July 2024.
How much traffic does Rp IS270W to IS55N over Is 55 Is 55 carry?
About 13,959 vehicles per day (2024 count), of which roughly 18% are trucks.
How long is Rp IS270W to IS55N over Is 55 Is 55?
The structure is 314 ft (95.7 m) long with a longest span of 80 ft (24.4 m) and a deck 40 ft wide.
Who owns Rp IS270W to IS55N over Is 55 Is 55?
It is owned by the State Highway Agency.