State Route 89 over Lake Britton
PoorShasta County, California · 02-SHA-089-29.19 · Structure no. 06 0052
- Built
- 1938
- 87 years old
- Condition
- Poor
- inspected May 2024
- Type
- Truss - Deck
- Steel
- Length
- 580 ft
- 3 main spans
- Daily traffic
- 1,700
- 2009 count
- Owner
- State
- State Highway Agency
About this bridge
State Route 89 over Lake Britton is a steel truss - deck carrying State Route 89 over Lake Britton in Shasta County, California. It was built in 1938, so it is 87 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 1,700 vehicles a day, roughly 25% of them trucks, projected to reach 2,457 by 2041. The structure is 580 ft (176.8 m) long and 29 ft wide. If it were closed, the detour would be 29.8 mi (48 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 | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was State Route 89 over Lake Britton built?
It was built in 1938, making it 87 years old in 2025.
What condition is State Route 89 over Lake Britton 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 May 2024.
How much traffic does State Route 89 over Lake Britton carry?
About 1,700 vehicles per day (2009 count), of which roughly 25% are trucks.
How long is State Route 89 over Lake Britton?
The structure is 580 ft (176.8 m) long with a longest span of 300 ft (91.4 m) and a deck 29 ft wide.
Who owns State Route 89 over Lake Britton?
It is owned by the State Highway Agency.