County RD 408 over Mams Slu
GoodAudrain County, Missouri · S 23 T 51 N R 7 W · Structure no. 31056
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 78 ft
- 1 main span
- Daily traffic
- 30
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County RD 408 over Mams Slu is a prestressed concrete stringer/multi-beam or girder carrying County RD 408 over Mams Slu in Audrain County, Missouri. It was built in 2005, so it is 20 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 30 vehicles a day, roughly 5% of them trucks, projected to reach 38 by 2043. The structure is 78 ft (23.8 m) long and 25 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County RD 408 over Mams Slu built?
It was built in 2005, making it 20 years old in 2025.
What condition is County RD 408 over Mams Slu in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in April 2023.
How much traffic does County RD 408 over Mams Slu carry?
About 30 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is County RD 408 over Mams Slu?
The structure is 78 ft (23.8 m) long with a longest span of 75 ft (22.9 m) and a deck 25 ft wide.
Who owns County RD 408 over Mams Slu?
It is owned by the County Highway Agency.