Norris Canyon Road over Interstate 680
FairContra Costa County, California · 04-CC-680-R3.76-SRMN · Structure no. 28 0205
- Built
- 1966
- 59 years old, rebuilt 1987
- Condition
- Fair
- inspected July 2024
- Type
- Box Beam or Girders - Multiple
- Concrete Continuous
- Length
- 215 ft
- 2 main spans
- Daily traffic
- 3,600
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Norris Canyon Road over Interstate 680 is a concrete continuous box beam or girders - multiple carrying Norris Canyon Road over Interstate 680 in Contra Costa County, California. It was built in 1966 and reconstructed in 1987, 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 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 3,600 vehicles a day, roughly 3% of them trucks, projected to reach 8,437 by 2041. The structure is 215 ft (65.6 m) long and 77 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Norris Canyon Road over Interstate 680 built?
It was built in 1966, making it 59 years old in 2025. It was reconstructed in 1987.
What condition is Norris Canyon Road over Interstate 680 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 July 2024.
How much traffic does Norris Canyon Road over Interstate 680 carry?
About 3,600 vehicles per day (2020 count), of which roughly 3% are trucks.
How long is Norris Canyon Road over Interstate 680?
The structure is 215 ft (65.6 m) long with a longest span of 107 ft (32.5 m) and a deck 77 ft wide.
Who owns Norris Canyon Road over Interstate 680?
It is owned by the State Highway Agency.