Avenue 20 over SR 99
GoodMadera County, California · 06-MAD-099-R18.68 · Structure no. 41 0070
- Built
- 1980
- 45 years old
- Condition
- Good
- inspected June 2023
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete Continuous
- Length
- 228 ft
- 2 main spans
- Daily traffic
- 1,400
- 2010 count
- Owner
- State
- State Highway Agency
About this bridge
Avenue 20 over SR 99 is a prestressed concrete continuous box beam or girders - multiple carrying Avenue 20 over SR 99 in Madera County, California. It was built in 1980, so it is 45 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 1,400 vehicles a day, roughly 10% of them trucks, projected to reach 2,236 by 2043. The structure is 228 ft (69.5 m) long and 60 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Avenue 20 over SR 99 built?
It was built in 1980, making it 45 years old in 2025.
What condition is Avenue 20 over SR 99 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 June 2023.
How much traffic does Avenue 20 over SR 99 carry?
About 1,400 vehicles per day (2010 count), of which roughly 10% are trucks.
How long is Avenue 20 over SR 99?
The structure is 228 ft (69.5 m) long with a longest span of 118 ft (36 m) and a deck 60 ft wide.
Who owns Avenue 20 over SR 99?
It is owned by the State Highway Agency.