Mo 109 S over Bonhomme CR
GoodSt. Louis County, Missouri · S 163 T 45 N R 5 E · Structure no. 32798
- Built
- 2009
- 16 years old
- Condition
- Good
- inspected July 2024
- Type
- Box Beam or Girders - Single or Spread
- Prestressed Concrete
- Length
- 67 ft
- 1 main span
- Daily traffic
- 15,945
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 109 S over Bonhomme CR is a prestressed concrete box beam or girders - single or spread carrying Mo 109 S over Bonhomme CR in St. Louis County, Missouri. It was built in 2009, so it is 16 years old, younger than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 15,945 vehicles a day, roughly 7% of them trucks, projected to reach 22,323 by 2044. The structure is 67 ft (20.4 m) long and 39 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 109 S over Bonhomme CR built?
It was built in 2009, making it 16 years old in 2025.
What condition is Mo 109 S over Bonhomme CR in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.
How much traffic does Mo 109 S over Bonhomme CR carry?
About 15,945 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is Mo 109 S over Bonhomme CR?
The structure is 67 ft (20.4 m) long with a longest span of 65 ft (19.8 m) and a deck 39 ft wide.
Who owns Mo 109 S over Bonhomme CR?
It is owned by the State Highway Agency.