SR 99 over Jacks Canyon
GoodNavajo County, Arizona · 3.7 MI E JCT SR 87 · Structure no. 01036
- Built
- 1949
- 76 years old, rebuilt 2007
- Condition
- Good
- inspected August 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 91 ft
- 1 main span
- Daily traffic
- 556
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR 99 over Jacks Canyon is a steel stringer/multi-beam or girder carrying SR 99 over Jacks Canyon in Navajo County, Arizona. It was built in 1949 and reconstructed in 2007, so it is 76 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 556 vehicles a day, roughly 3% of them trucks, projected to reach 566 by 2042. The structure is 91 ft (27.7 m) long and 35 ft wide. If it were closed, the detour would be 98.8 mi (159 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SR 99 over Jacks Canyon built?
It was built in 1949, making it 76 years old in 2025. It was reconstructed in 2007.
What condition is SR 99 over Jacks Canyon 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 August 2023.
How much traffic does SR 99 over Jacks Canyon carry?
About 556 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is SR 99 over Jacks Canyon?
The structure is 91 ft (27.7 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.
Who owns SR 99 over Jacks Canyon?
It is owned by the State Highway Agency.