Old HWY 100 over Dubois CR
PoorPosted for loadFranklin County, Missouri · S 1923 T 44 N R 1 W · Structure no. 23794
- Built
- 1939
- 86 years old
- Condition
- Poor
- inspected January 2025
- Type
- Girder and Floorbeam System
- Steel
- Length
- 188 ft
- 3 main spans
- Daily traffic
- 1,000
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Old HWY 100 over Dubois CR is a steel girder and floorbeam system carrying Old HWY 100 over Dubois CR in Franklin County, Missouri. It was built in 1939, so it is 86 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 1,000 vehicles a day, roughly 10% of them trucks, projected to reach 1,600 by 2043. The structure is 188 ft (57.3 m) long and 28 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Old HWY 100 over Dubois CR built?
It was built in 1939, making it 86 years old in 2025.
What condition is Old HWY 100 over Dubois 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 January 2025.
How much traffic does Old HWY 100 over Dubois CR carry?
About 1,000 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Old HWY 100 over Dubois CR?
The structure is 188 ft (57.3 m) long with a longest span of 79 ft (24.1 m) and a deck 28 ft wide.
Who owns Old HWY 100 over Dubois CR?
It is owned by the County Highway Agency.