Delor ST E over Is 55 Is 55
FairSt. Louis city, Missouri · S 9 T 44 N R 7 E · Structure no. 33137
- Built
- 2011
- 14 years old
- Condition
- Fair
- inspected August 2023
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete Continuous
- Length
- 228 ft
- 4 main spans
- Daily traffic
- 1,341
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Delor ST E over Is 55 Is 55 is a prestressed concrete continuous box beam or girders - single or spread carrying Delor ST E over Is 55 Is 55 in St. Louis city, Missouri. It was built in 2011, so it is 14 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 1,341 vehicles a day, roughly 5% of them trucks, projected to reach 2,012 by 2044. The structure is 228 ft (69.5 m) long and 42 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Delor ST E over Is 55 Is 55 built?
It was built in 2011, making it 14 years old in 2025.
What condition is Delor ST E 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 August 2023.
How much traffic does Delor ST E over Is 55 Is 55 carry?
About 1,341 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Delor ST E over Is 55 Is 55?
The structure is 228 ft (69.5 m) long with a longest span of 70 ft (21.2 m) and a deck 42 ft wide.
Who owns Delor ST E over Is 55 Is 55?
It is owned by the State Highway Agency.