County Road 31U over Miramonte Res Spillway
GoodSan Miguel County, Colorado · At Miramonte State Rec Ar · Structure no. SMG31U-14.2-16A
- Built
- 1965
- 60 years old, rebuilt 1993
- Condition
- Good
- inspected June 2024
- Type
- Slab
- Prestressed Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 94
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
County Road 31U over Miramonte Res Spillway is a prestressed concrete slab carrying County Road 31U over Miramonte Res Spillway in San Miguel County, Colorado. It was built in 1965 and reconstructed in 1993, so it is 60 years old, older than the Colorado average of 42.2 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 94 vehicles a day, roughly 2% of them trucks, projected to reach 107 by 2042. The structure is 31 ft (9.5 m) long and 31 ft wide. If it were closed, the detour would be 49.7 mi (80 km).
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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was County Road 31U over Miramonte Res Spillway built?
It was built in 1965, making it 60 years old in 2025. It was reconstructed in 1993.
What condition is County Road 31U over Miramonte Res Spillway 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 June 2024.
How much traffic does County Road 31U over Miramonte Res Spillway carry?
About 94 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is County Road 31U over Miramonte Res Spillway?
The structure is 31 ft (9.5 m) long with a longest span of 27 ft (8.1 m) and a deck 31 ft wide.
Who owns County Road 31U over Miramonte Res Spillway?
It is owned by the County Highway Agency.