I-25 Sbl over Machinery Pass
PoorConverse County, Wyoming · Glendo - Douglas · Structure no. CZX
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected January 2025
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 180 ft
- 3 main spans
- Daily traffic
- 3,379
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I-25 Sbl over Machinery Pass is a steel continuous stringer/multi-beam or girder carrying I-25 Sbl over Machinery Pass in Converse County, Wyoming. It was built in 1971, so it is 54 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.
It carries about 3,379 vehicles a day, roughly 26% of them trucks, projected to reach 4,731 by 2043. The structure is 180 ft (54.9 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 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 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 Machinery Pass built?
It was built in 1971, making it 54 years old in 2025.
What condition is I-25 Sbl over Machinery Pass 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 January 2025.
How much traffic does I-25 Sbl over Machinery Pass carry?
About 3,379 vehicles per day (2024 count), of which roughly 26% are trucks.
How long is I-25 Sbl over Machinery Pass?
The structure is 180 ft (54.9 m) long with a longest span of 68 ft (20.7 m) and a deck 45 ft wide.
Who owns I-25 Sbl over Machinery Pass?
It is owned by the State Highway Agency.