HWY 99-97 Cutoff over Shasta River
GoodSiskiyou County, California · 1.1 MI E/O Montague Gnada · Structure no. 02C0043
- Built
- 1955
- 70 years old
- Condition
- Good
- inspected June 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 122 ft
- 3 main spans
- Daily traffic
- 2,685
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
HWY 99-97 Cutoff over Shasta River is a concrete continuous tee beam carrying HWY 99-97 Cutoff over Shasta River in Siskiyou County, California. It was built in 1955, so it is 70 years old, older than the California average of 54.8 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 2,685 vehicles a day, roughly 10% of them trucks, projected to reach 3,757 by 2042. The structure is 122 ft (37.2 m) long and 31 ft wide. If it were closed, the detour would be 21.7 mi (35 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 HWY 99-97 Cutoff over Shasta River built?
It was built in 1955, making it 70 years old in 2025.
What condition is HWY 99-97 Cutoff over Shasta 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 June 2024.
How much traffic does HWY 99-97 Cutoff over Shasta River carry?
About 2,685 vehicles per day (2011 count), of which roughly 10% are trucks.
How long is HWY 99-97 Cutoff over Shasta River?
The structure is 122 ft (37.2 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.
Who owns HWY 99-97 Cutoff over Shasta River?
It is owned by the County Highway Agency.