Cb Cnty RD 121 over Medicine Bow River
FairCarbon County, Wyoming · 12 MI NW of Medicine Bow · Structure no. NDL
- Built
- 2018
- 7 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 140 ft
- 1 main span
- Daily traffic
- 123
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cb Cnty RD 121 over Medicine Bow River is a steel stringer/multi-beam or girder carrying Cb Cnty RD 121 over Medicine Bow River in Carbon County, Wyoming. It was built in 2018, so it is 7 years old, younger than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 123 vehicles a day, roughly 46% of them trucks, projected to reach 172 by 2043. The structure is 140 ft (42.7 m) long and 29 ft wide. If it were closed, the detour would be 47.2 mi (76 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 | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Cb Cnty RD 121 over Medicine Bow River built?
It was built in 2018, making it 7 years old in 2025.
What condition is Cb Cnty RD 121 over Medicine Bow River 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 June 2024.
How much traffic does Cb Cnty RD 121 over Medicine Bow River carry?
About 123 vehicles per day (2024 count), of which roughly 46% are trucks.
How long is Cb Cnty RD 121 over Medicine Bow River?
The structure is 140 ft (42.7 m) long with a longest span of 139 ft (42.4 m) and a deck 29 ft wide.
Who owns Cb Cnty RD 121 over Medicine Bow River?
It is owned by the County Highway Agency.