Salt River RD E over Mo 79
FairSt. Charles County, Missouri · S 23 T 47 N R 3 E · Structure no. 3865
- Built
- 1990
- 35 years old
- Condition
- Fair
- inspected September 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 292 ft
- 2 main spans
- Daily traffic
- 9,093
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Salt River RD E over Mo 79 is a steel continuous stringer/multi-beam or girder carrying Salt River RD E over Mo 79 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 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 9,093 vehicles a day, roughly 5% of them trucks, projected to reach 16,367 by 2044. The structure is 292 ft (89 m) long and 81 ft wide. If it were closed, the detour would be 5 mi (8 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 | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Salt River RD E over Mo 79 built?
It was built in 1990, making it 35 years old in 2025.
What condition is Salt River RD E over Mo 79 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 Salt River RD E over Mo 79 carry?
About 9,093 vehicles per day (2024 count), of which roughly 5% are trucks.
How long is Salt River RD E over Mo 79?
The structure is 292 ft (89 m) long with a longest span of 119 ft (36.2 m) and a deck 81 ft wide.
Who owns Salt River RD E over Mo 79?
It is owned by the State Highway Agency.