Irr# County RD 122 over LA Plata River
FairPosted for loadLa Plata County, Colorado · 1.4 MI N SH 140 · Structure no. 67012201.90029
- Built
- 1930
- 95 years old, rebuilt 1977
- Condition
- Fair
- inspected October 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 32 ft
- 1 main span
- Daily traffic
- 92
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Irr# County RD 122 over LA Plata River is a steel stringer/multi-beam or girder carrying Irr# County RD 122 over LA Plata River in La Plata County, Colorado. It was built in 1930 and reconstructed in 1977, so it is 95 years old, older than the Colorado average of 42.2 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. Its operating status is: posted for load restriction.
It carries about 92 vehicles a day, roughly 2% of them trucks, projected to reach 109 by 2042. The structure is 32 ft (9.7 m) long and 22 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 | 7 Good | Some minor problems. |
| 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Irr# County RD 122 over LA Plata River built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1977.
What condition is Irr# County RD 122 over LA Plata 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 October 2024.
How much traffic does Irr# County RD 122 over LA Plata River carry?
About 92 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Irr# County RD 122 over LA Plata River?
The structure is 32 ft (9.7 m) long with a longest span of 28 ft (8.6 m) and a deck 22 ft wide.
Who owns Irr# County RD 122 over LA Plata River?
It is owned by the County Highway Agency.