Commerce DR over Black CR
PoorPosted for loadJefferson County, Missouri · S 6 T 42 N R 6 E · Structure no. 36447
- Built
- 1986
- 39 years old
- Condition
- Poor
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 300
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
Commerce DR over Black CR is a steel continuous stringer/multi-beam or girder carrying Commerce DR over Black CR in Jefferson County, Missouri. It was built in 1986, so it is 39 years old, younger 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 300 vehicles a day, roughly 10% of them trucks, projected to reach 510 by 2043. The structure is 25 ft (7.5 m) long and 27 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 Commerce DR over Black CR built?
It was built in 1986, making it 39 years old in 2025.
What condition is Commerce DR over Black 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 Commerce DR over Black CR carry?
About 300 vehicles per day (2023 count), of which roughly 10% are trucks.
How long is Commerce DR over Black CR?
The structure is 25 ft (7.5 m) long with a longest span of 11 ft (3.4 m) and a deck 27 ft wide.
Who owns Commerce DR over Black CR?
It is owned by the County Highway Agency.