Interstate 5 over Guys Gulch
GoodSiskiyou County, California · 02-SIS-005-R39.27 · Structure no. 02 0145L
- Built
- 1969
- 56 years old
- Condition
- Good
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 72 ft
- 3 main spans
- Daily traffic
- 8,300
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Guys Gulch is a concrete continuous slab carrying Interstate 5 over Guys Gulch in Siskiyou County, California. It was built in 1969, so it is 56 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 8,300 vehicles a day, roughly 24% of them trucks, projected to reach 11,259 by 2042. The structure is 72 ft (21.9 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 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 Interstate 5 over Guys Gulch built?
It was built in 1969, making it 56 years old in 2025.
What condition is Interstate 5 over Guys Gulch 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 July 2024.
How much traffic does Interstate 5 over Guys Gulch carry?
About 8,300 vehicles per day (2010 count), of which roughly 24% are trucks.
How long is Interstate 5 over Guys Gulch?
The structure is 72 ft (21.9 m) long with a longest span of 28 ft (8.5 m) and a deck 41 ft wide.
Who owns Interstate 5 over Guys Gulch?
It is owned by the State Highway Agency.