Is 55 N over ST Johns Dtch
FairNew Madrid County, Missouri · S 34 T 25 N R 14 E · Structure no. 936
- Built
- 1964
- 61 years old
- Condition
- Fair
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 242 ft
- 5 main spans
- Daily traffic
- 10,439
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 55 N over ST Johns Dtch is a steel continuous stringer/multi-beam or girder carrying Is 55 N over ST Johns Dtch in New Madrid County, Missouri. It was built in 1964, 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 5 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 10,439 vehicles a day, roughly 59% of them trucks, projected to reach 19,312 by 2044. The structure is 242 ft (73.8 m) long and 34 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Is 55 N over ST Johns Dtch built?
It was built in 1964, making it 61 years old in 2025.
What condition is Is 55 N over ST Johns Dtch 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 October 2023.
How much traffic does Is 55 N over ST Johns Dtch carry?
About 10,439 vehicles per day (2024 count), of which roughly 59% are trucks.
How long is Is 55 N over ST Johns Dtch?
The structure is 242 ft (73.8 m) long with a longest span of 52 ft (15.8 m) and a deck 34 ft wide.
Who owns Is 55 N over ST Johns Dtch?
It is owned by the State Highway Agency.