Mo 79 N over Belleau CR
FairSt. Charles County, Missouri · S 23 T 47 N R 3 E · Structure no. 3864
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete Continuous
- Length
- 124 ft
- 3 main spans
- Daily traffic
- 8,679
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 79 N over Belleau CR is a prestressed concrete continuous stringer/multi-beam or girder carrying Mo 79 N over Belleau CR in St. Charles County, Missouri. It was built in 1990, so it is 35 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 8,679 vehicles a day, roughly 12% of them trucks, projected to reach 15,622 by 2044. The structure is 124 ft (37.8 m) long and 41 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 | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 79 N over Belleau CR built?
It was built in 1990, making it 35 years old in 2025.
What condition is Mo 79 N over Belleau CR 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 September 2023.
How much traffic does Mo 79 N over Belleau CR carry?
About 8,679 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is Mo 79 N over Belleau CR?
The structure is 124 ft (37.8 m) long with a longest span of 47 ft (14.3 m) and a deck 41 ft wide.
Who owns Mo 79 N over Belleau CR?
It is owned by the State Highway Agency.