Cnty RD 91 over Unknown Branch
GoodCarroll County, Missouri · S 23 T 53 N R 21 W · Structure no. 35859
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 76 ft
- 1 main span
- Daily traffic
- 10
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cnty RD 91 over Unknown Branch is a steel stringer/multi-beam or girder carrying Cnty RD 91 over Unknown Branch in Carroll County, Missouri. It was built in 2017, so it is 8 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 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 10 vehicles a day, roughly 10% of them trucks, projected to reach 11 by 2044. The structure is 76 ft (23.2 m) long and 25 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 9 Excellent | No problems noted. |
| Superstructure | 9 Excellent | No problems noted. |
| Substructure | 9 Excellent | 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 Cnty RD 91 over Unknown Branch built?
It was built in 2017, making it 8 years old in 2025.
What condition is Cnty RD 91 over Unknown Branch 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 January 2024.
How much traffic does Cnty RD 91 over Unknown Branch carry?
About 10 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is Cnty RD 91 over Unknown Branch?
The structure is 76 ft (23.2 m) long with a longest span of 73 ft (22.3 m) and a deck 25 ft wide.
Who owns Cnty RD 91 over Unknown Branch?
It is owned by the County Highway Agency.