Patterson RD over Daniel Boone CR
FairPosted for loadSt. Louis County, Missouri · S 22 T 47 N R 6 E · Structure no. 15553
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 40 ft
- 1 main span
- Daily traffic
- 26,848
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Patterson RD over Daniel Boone CR is a steel stringer/multi-beam or girder carrying Patterson RD over Daniel Boone CR in St. Louis County, Missouri. It was built in 1966, so it is 59 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.
It carries about 26,848 vehicles a day, roughly 10% of them trucks, projected to reach 36,245 by 2044. The structure is 40 ft (12.2 m) long and 56 ft wide. If it were closed, the detour would be 5 mi (8 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 Patterson RD over Daniel Boone CR built?
It was built in 1966, making it 59 years old in 2025.
What condition is Patterson RD over Daniel Boone CR in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.
How much traffic does Patterson RD over Daniel Boone CR carry?
About 26,848 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Patterson RD over Daniel Boone CR?
The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.6 m) and a deck 56 ft wide.
Who owns Patterson RD over Daniel Boone CR?
It is owned by the County Highway Agency.