Cb Cnty RD 660 over North Platte River
PoorPosted for loadCarbon County, Wyoming · 12 Mi. E. of Riverside · Structure no. DMK
- Built
- 1915
- 110 years old
- Condition
- Poor
- inspected August 2024
- Type
- Girder and Floorbeam System
- Steel Continuous
- Length
- 200 ft
- 4 main spans
- Daily traffic
- 69
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
Cb Cnty RD 660 over North Platte River is a steel continuous girder and floorbeam system carrying Cb Cnty RD 660 over North Platte River in Carbon County, Wyoming. It was built in 1915, so it is 110 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 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 69 vehicles a day, roughly 6% of them trucks, projected to reach 97 by 2043. The structure is 200 ft (61 m) long and 14 ft wide. If it were closed, the detour would be 42.3 mi (68 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 Cb Cnty RD 660 over North Platte River built?
It was built in 1915, making it 110 years old in 2025.
What condition is Cb Cnty RD 660 over North Platte River 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 August 2024.
How much traffic does Cb Cnty RD 660 over North Platte River carry?
About 69 vehicles per day (2024 count), of which roughly 6% are trucks.
How long is Cb Cnty RD 660 over North Platte River?
The structure is 200 ft (61 m) long with a longest span of 50 ft (15.2 m) and a deck 14 ft wide.
Who owns Cb Cnty RD 660 over North Platte River?
It is owned by the County Highway Agency.