County Road 18.50 over Grand Valley Canal
FairMesa County, Colorado · .7 MI N of Road M · Structure no. MESA-18.5-M.7
- Built
- 1978
- 47 years old, rebuilt 1992
- Condition
- Fair
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 23 ft
- 1 main span
- Daily traffic
- 417
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 18.50 over Grand Valley Canal is a steel stringer/multi-beam or girder carrying County Road 18.50 over Grand Valley Canal in Mesa County, Colorado. It was built in 1978 and reconstructed in 1992, so it is 47 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.
It carries about 417 vehicles a day, roughly 2% of them trucks, projected to reach 487 by 2042. The structure is 23 ft (6.9 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 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 18.50 over Grand Valley Canal built?
It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1992.
What condition is County Road 18.50 over Grand Valley Canal 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 January 2024.
How much traffic does County Road 18.50 over Grand Valley Canal carry?
About 417 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is County Road 18.50 over Grand Valley Canal?
The structure is 23 ft (6.9 m) long with a longest span of 21 ft (6.3 m) and a deck 24 ft wide.
Who owns County Road 18.50 over Grand Valley Canal?
It is owned by the County Highway Agency.