320th ST over Tombstone CR
PoorPosted for loadDaviess County, Missouri · S 34 T 62 N R 26 W · Structure no. 13928
- Built
- 1929
- 96 years old
- Condition
- Poor
- inspected December 2023
- Type
- Truss - Thru
- Steel
- Length
- 48 ft
- 1 main span
- Daily traffic
- 5
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
320th ST over Tombstone CR is a steel truss - thru carrying 320th ST over Tombstone CR in Daviess County, Missouri. It was built in 1929, so it is 96 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 48 ft (14.6 m) long and 12 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 320th ST over Tombstone CR built?
It was built in 1929, making it 96 years old in 2025.
What condition is 320th ST over Tombstone 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 December 2023.
How much traffic does 320th ST over Tombstone CR carry?
About 5 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is 320th ST over Tombstone CR?
The structure is 48 ft (14.6 m) long with a longest span of 40 ft (12.2 m) and a deck 12 ft wide.
Who owns 320th ST over Tombstone CR?
It is owned by the County Highway Agency.