Hart Mine Road over Colorado River
GoodLa Paz County, Arizona · 22 MI South of Blythe Ca · Structure no. 0304-0001
- Built
- 1969
- 56 years old, rebuilt 2011
- Condition
- Good
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 557 ft
- 8 main spans
- Daily traffic
- 30
- 2017 count
- Owner
- Federal
- Bureau of Reclamation
About this bridge
Hart Mine Road over Colorado River is a prestressed concrete stringer/multi-beam or girder carrying Hart Mine Road over Colorado River in La Paz County, Arizona. It was built in 1969 and reconstructed in 2011, so it is 56 years old, older than the Arizona average of 47.8 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 30 vehicles a day, projected to reach 75 by 2039. The structure is 557 ft (169.8 m) long and 23 ft wide. If it were closed, the detour would be 14.3 mi (23 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 | 7 Good | Some minor problems. |
| 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 Hart Mine Road over Colorado River built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2011.
What condition is Hart Mine Road over Colorado River 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 October 2023.
How much traffic does Hart Mine Road over Colorado River carry?
About 30 vehicles per day (2017 count).
How long is Hart Mine Road over Colorado River?
The structure is 557 ft (169.8 m) long with a longest span of 70 ft (21.3 m) and a deck 23 ft wide.
Who owns Hart Mine Road over Colorado River?
It is owned by the Bureau of Reclamation.