County RD 330 over Mill CR
PoorPosted for loadHolt County, Missouri · S 15 T 59 N R 38 W · Structure no. 21730
- Built
- 1920
- 105 years old
- Condition
- Poor
- inspected November 2024
- Type
- Truss - Thru
- Steel
- Length
- 118 ft
- 1 main span
- Daily traffic
- 5
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
County RD 330 over Mill CR is a steel truss - thru carrying County RD 330 over Mill CR in Holt County, Missouri. It was built in 1920, so it is 105 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 5 vehicles a day, roughly 10% of them trucks, projected to reach 6 by 2044. The structure is 118 ft (36 m) long and 16 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| 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 330 over Mill CR built?
It was built in 1920, making it 105 years old in 2025.
What condition is County RD 330 over Mill CR in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2024.
How much traffic does County RD 330 over Mill CR carry?
About 5 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is County RD 330 over Mill CR?
The structure is 118 ft (36 m) long with a longest span of 75 ft (22.9 m) and a deck 16 ft wide.
Who owns County RD 330 over Mill CR?
It is owned by the County Highway Agency.