I-25 Nbl over Wyo 321
GoodPlatte County, Wyoming · Chugwater Marginal · Structure no. ADB
- Built
- 1968
- 57 years old
- Condition
- Good
- inspected April 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 146 ft
- 3 main spans
- Daily traffic
- 3,561
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Nbl over Wyo 321 is a concrete continuous tee beam carrying I-25 Nbl over Wyo 321 in Platte County, Wyoming. It was built in 1968, so it is 57 years old, older than the Wyoming average of 48.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 3,561 vehicles a day, roughly 22% of them trucks, projected to reach 4,985 by 2043. The structure is 146 ft (44.5 m) long and 41 ft wide.
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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I-25 Nbl over Wyo 321 built?
It was built in 1968, making it 57 years old in 2025.
What condition is I-25 Nbl over Wyo 321 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 April 2024.
How much traffic does I-25 Nbl over Wyo 321 carry?
About 3,561 vehicles per day (2024 count), of which roughly 22% are trucks.
How long is I-25 Nbl over Wyo 321?
The structure is 146 ft (44.5 m) long with a longest span of 57 ft (17.4 m) and a deck 41 ft wide.
Who owns I-25 Nbl over Wyo 321?
It is owned by the State Highway Agency.