Interstate 5 over Slate Creek
FairShasta County, California · 02-SHA-005-R48.83 · Structure no. 06 0028
- Built
- 1991
- 34 years old
- Condition
- Fair
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 420 ft
- 3 main spans
- Daily traffic
- 17,100
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
Interstate 5 over Slate Creek is a prestressed concrete continuous box beam or girders - multiple carrying Interstate 5 over Slate Creek in Shasta County, California. It was built in 1991, so it is 34 years old, younger than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 17,100 vehicles a day, roughly 32% of them trucks, projected to reach 30,700 by 2041. The structure is 420 ft (128 m) long and 117 ft wide. If it were closed, the detour would be 123.7 mi (199 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| 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 Slate Creek built?
It was built in 1991, making it 34 years old in 2025.
What condition is Interstate 5 over Slate Creek in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in March 2024.
How much traffic does Interstate 5 over Slate Creek carry?
About 17,100 vehicles per day (2009 count), of which roughly 32% are trucks.
How long is Interstate 5 over Slate Creek?
The structure is 420 ft (128 m) long with a longest span of 170 ft (51.8 m) and a deck 117 ft wide.
Who owns Interstate 5 over Slate Creek?
It is owned by the State Highway Agency.