Wyo 258 (wyo Blvd) over North Platte River
FairNatrona County, Wyoming · Casper · Structure no. CWD
- Built
- 1974
- 51 years old
- Condition
- Fair
- inspected June 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 394 ft
- 4 main spans
- Daily traffic
- 11,746
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Wyo 258 (wyo Blvd) over North Platte River is a steel continuous stringer/multi-beam or girder carrying Wyo 258 (wyo Blvd) over North Platte River in Natrona County, Wyoming. It was built in 1974, so it is 51 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 5 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 11,746 vehicles a day, roughly 2% of them trucks, projected to reach 16,444 by 2043. The structure is 394 ft (120.1 m) long and 72 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Wyo 258 (wyo Blvd) over North Platte River built?
It was built in 1974, making it 51 years old in 2025.
What condition is Wyo 258 (wyo Blvd) 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 June 2024.
How much traffic does Wyo 258 (wyo Blvd) over North Platte River carry?
About 11,746 vehicles per day (2024 count), of which roughly 2% are trucks.
How long is Wyo 258 (wyo Blvd) over North Platte River?
The structure is 394 ft (120.1 m) long with a longest span of 106 ft (32.3 m) and a deck 72 ft wide.
Who owns Wyo 258 (wyo Blvd) over North Platte River?
It is owned by the State Highway Agency.