US 50 E over Is 55
FairSt. Louis County, Missouri · S 34 T 44 N R 6 E · Structure no. 4125
- Built
- 1995
- 30 years old
- Condition
- Fair
- inspected July 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 143 ft
- 2 main spans
- Daily traffic
- 25,152
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
US 50 E over Is 55 is a prestressed concrete continuous stringer/multi-beam or girder carrying US 50 E over Is 55 in St. Louis County, Missouri. It was built in 1995, so it is 30 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 25,152 vehicles a day, roughly 6% of them trucks, projected to reach 35,213 by 2044. The structure is 143 ft (43.6 m) long and 251 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US 50 E over Is 55 built?
It was built in 1995, making it 30 years old in 2025.
What condition is US 50 E 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 July 2024.
How much traffic does US 50 E over Is 55 carry?
About 25,152 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is US 50 E over Is 55?
The structure is 143 ft (43.6 m) long with a longest span of 72 ft (21.8 m) and a deck 251 ft wide.
Who owns US 50 E over Is 55?
It is owned by the State Highway Agency.