Madera Road over Arroyo Simi
PoorVentura County, California · 0.5 MI S of SR 118 · Structure no. 52C0204
- Built
- 1979
- 46 years old
- Condition
- Poor
- inspected March 2024
- Type
- Box Beam or Girders - Multiple
- Prestressed Concrete
- Length
- 135 ft
- 1 main span
- Daily traffic
- 30,000
- 2019 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
Madera Road over Arroyo Simi is a prestressed concrete box beam or girders - multiple carrying Madera Road over Arroyo Simi in Ventura County, California. It was built in 1979, so it is 46 years old, younger 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 30,000 vehicles a day, roughly 1% of them trucks, projected to reach 55,846 by 2046. The structure is 135 ft (41.1 m) long and 100 ft wide. If it were closed, the detour would be 1.2 mi (2 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Madera Road over Arroyo Simi built?
It was built in 1979, making it 46 years old in 2025.
What condition is Madera Road over Arroyo Simi 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 March 2024.
How much traffic does Madera Road over Arroyo Simi carry?
About 30,000 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is Madera Road over Arroyo Simi?
The structure is 135 ft (41.1 m) long with a longest span of 130 ft (39.6 m) and a deck 100 ft wide.
Who owns Madera Road over Arroyo Simi?
It is owned by the City or Municipal Highway Agency.