Mattole RD over Bull Creek
FairHumboldt County, California · 6.4 MI W/O JCT W/ SR 101 · Structure no. 04C0015
- Built
- 1966
- 59 years old
- Condition
- Fair
- inspected March 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 155 ft
- 3 main spans
- Daily traffic
- 500
- 2011 count
- Owner
- County
- County Highway Agency
About this bridge
Mattole RD over Bull Creek is a concrete continuous tee beam carrying Mattole RD over Bull Creek in Humboldt County, California. It was built in 1966, so it is 59 years old, older 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 6 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 500 vehicles a day, roughly 4% of them trucks, projected to reach 1,308 by 2042. The structure is 155 ft (47.2 m) long and 29 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| 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 Mattole RD over Bull Creek built?
It was built in 1966, making it 59 years old in 2025.
What condition is Mattole RD over Bull 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 Mattole RD over Bull Creek carry?
About 500 vehicles per day (2011 count), of which roughly 4% are trucks.
How long is Mattole RD over Bull Creek?
The structure is 155 ft (47.2 m) long with a longest span of 60 ft (18.3 m) and a deck 29 ft wide.
Who owns Mattole RD over Bull Creek?
It is owned by the County Highway Agency.