State Route 89 over Mud Creek
GoodSiskiyou County, California · 02-SIS-089-21.08 · Structure no. 02 0203
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected September 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 2,400
- 2015 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 89 over Mud Creek is a prestressed concrete stringer/multi-beam or girder carrying State Route 89 over Mud Creek in Siskiyou County, California. It was built in 2018, so it is 7 years old, younger 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 2,400 vehicles a day, roughly 27% of them trucks, projected to reach 3,673 by 2041. The structure is 65 ft (19.8 m) long and 43 ft wide. If it were closed, the detour would be 123.7 mi (199 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 89 over Mud Creek built?
It was built in 2018, making it 7 years old in 2025.
What condition is State Route 89 over Mud Creek 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 September 2024.
How much traffic does State Route 89 over Mud Creek carry?
About 2,400 vehicles per day (2015 count), of which roughly 27% are trucks.
How long is State Route 89 over Mud Creek?
The structure is 65 ft (19.8 m) long with a longest span of 62 ft (18.9 m) and a deck 43 ft wide.
Who owns State Route 89 over Mud Creek?
It is owned by the State Highway Agency.