I-25 Sbl over North Platte River
FairConverse County, Wyoming · Glendo - Douglas · Structure no. CZT
- Built
- 1972
- 53 years old
- Condition
- Fair
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 636 ft
- 5 main spans
- Daily traffic
- 3,379
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Sbl over North Platte River is a steel continuous stringer/multi-beam or girder carrying I-25 Sbl over North Platte River in Converse County, Wyoming. It was built in 1972, so it is 53 years old, older 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 3,379 vehicles a day, roughly 26% of them trucks, projected to reach 4,731 by 2043. The structure is 636 ft (193.9 m) long and 45 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| 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 I-25 Sbl over North Platte River built?
It was built in 1972, making it 53 years old in 2025.
What condition is I-25 Sbl over North Platte 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 January 2025.
How much traffic does I-25 Sbl over North Platte River carry?
About 3,379 vehicles per day (2024 count), of which roughly 26% are trucks.
How long is I-25 Sbl over North Platte River?
The structure is 636 ft (193.9 m) long with a longest span of 137 ft (41.8 m) and a deck 45 ft wide.
Who owns I-25 Sbl over North Platte River?
It is owned by the State Highway Agency.