County RD 310 over Mill CR
GoodHolt County, Missouri · S 3 T 59 N R 38 W · Structure no. 21789
- Built
- 1992
- 33 years old
- Condition
- Good
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete Continuous
- Length
- 112 ft
- 3 main spans
- Daily traffic
- 10
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
County RD 310 over Mill CR is a prestressed concrete continuous tee beam carrying County RD 310 over Mill CR in Holt County, Missouri. It was built in 1992, so it is 33 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 10 vehicles a day, roughly 10% of them trucks, projected to reach 12 by 2044. The structure is 112 ft (34.1 m) long and 27 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County RD 310 over Mill CR built?
It was built in 1992, making it 33 years old in 2025.
What condition is County RD 310 over Mill CR 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 November 2023.
How much traffic does County RD 310 over Mill CR carry?
About 10 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is County RD 310 over Mill CR?
The structure is 112 ft (34.1 m) long with a longest span of 50 ft (15.2 m) and a deck 27 ft wide.
Who owns County RD 310 over Mill CR?
It is owned by the County Highway Agency.