Is 55 N over US 67
FairJefferson County, Missouri · S 1906 T 40 N R 6 E · Structure no. 573
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected November 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 200 ft
- 4 main spans
- Daily traffic
- 15,224
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Is 55 N over US 67 is a steel continuous stringer/multi-beam or girder carrying Is 55 N over US 67 in Jefferson County, Missouri. It was built in 1966, so it is 59 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 15,224 vehicles a day, roughly 27% of them trucks, projected to reach 28,164 by 2044. The structure is 200 ft (61 m) long and 44 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Is 55 N over US 67 built?
It was built in 1966, making it 59 years old in 2025.
What condition is Is 55 N over US 67 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 Is 55 N over US 67 carry?
About 15,224 vehicles per day (2024 count), of which roughly 27% are trucks.
How long is Is 55 N over US 67?
The structure is 200 ft (61 m) long with a longest span of 55 ft (16.8 m) and a deck 44 ft wide.
Who owns Is 55 N over US 67?
It is owned by the State Highway Agency.