County Road 129 over S.Fk Little Snake River
PoorRoutt County, Colorado · 42.6 MI N of US HWY 40 · Structure no. 107012954.00942
- Built
- 1975
- 50 years old
- Condition
- Poor
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 30 ft
- 1 main span
- Daily traffic
- 131
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 129 over S.Fk Little Snake River is a steel stringer/multi-beam or girder carrying County Road 129 over S.Fk Little Snake River in Routt County, Colorado. It was built in 1975, so it is 50 years old, older than the Colorado average of 42.2 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 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 131 vehicles a day, roughly 50% of them trucks, projected to reach 155 by 2042. The structure is 30 ft (9.2 m) long and 24 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 129 over S.Fk Little Snake River built?
It was built in 1975, making it 50 years old in 2025.
What condition is County Road 129 over S.Fk Little Snake 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 October 2024.
How much traffic does County Road 129 over S.Fk Little Snake River carry?
About 131 vehicles per day (2023 count), of which roughly 50% are trucks.
How long is County Road 129 over S.Fk Little Snake River?
The structure is 30 ft (9.2 m) long with a longest span of 28 ft (8.6 m) and a deck 24 ft wide.
Who owns County Road 129 over S.Fk Little Snake River?
It is owned by the County Highway Agency.