Grapevine RD over Blackbird CR
PoorPosted for loadAdair County, Missouri · S 20 T 64 N R 16 W · Structure no. 12641
- Built
- 1960
- 65 years old
- Condition
- Poor
- inspected February 2024
- Type
- Truss - Thru
- Steel
- Length
- 108 ft
- 1 main span
- Daily traffic
- 30
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Grapevine RD over Blackbird CR is a steel truss - thru carrying Grapevine RD over Blackbird CR in Adair County, Missouri. It was built in 1960, so it is 65 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 4 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 30 vehicles a day, roughly 10% of them trucks, projected to reach 33 by 2044. The structure is 108 ft (32.9 m) long and 19 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Grapevine RD over Blackbird CR built?
It was built in 1960, making it 65 years old in 2025.
What condition is Grapevine RD over Blackbird 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 February 2024.
How much traffic does Grapevine RD over Blackbird CR carry?
About 30 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Grapevine RD over Blackbird CR?
The structure is 108 ft (32.9 m) long with a longest span of 108 ft (32.9 m) and a deck 19 ft wide.
Who owns Grapevine RD over Blackbird CR?
It is owned by the County Highway Agency.