Bald Hills Road over Prairie Creek
PoorHumboldt County, California · 0.01 MI E/O SR 101 · Structure no. 04C0005
- Built
- 1957
- 68 years old
- Condition
- Poor
- inspected October 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 116 ft
- 2 main spans
- Daily traffic
- 479
- 2009 count
- Owner
- County
- County Highway Agency
About this bridge
Bald Hills Road over Prairie Creek is a steel stringer/multi-beam or girder carrying Bald Hills Road over Prairie Creek in Humboldt County, California. It was built in 1957, so it is 68 years old, older than the California average of 54.8 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
It carries about 479 vehicles a day, roughly 26% of them trucks, projected to reach 1,087 by 2041. The structure is 116 ft (35.4 m) long and 28 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Bald Hills Road over Prairie Creek built?
It was built in 1957, making it 68 years old in 2025.
What condition is Bald Hills Road over Prairie Creek in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in October 2023.
How much traffic does Bald Hills Road over Prairie Creek carry?
About 479 vehicles per day (2009 count), of which roughly 26% are trucks.
How long is Bald Hills Road over Prairie Creek?
The structure is 116 ft (35.4 m) long with a longest span of 54 ft (16.6 m) and a deck 28 ft wide.
Who owns Bald Hills Road over Prairie Creek?
It is owned by the County Highway Agency.