1st Street over Arroyo Simi
PoorVentura County, California · .1 MI S/O Los Angeles Av · Structure no. 52C0148
- Built
- 1971
- 54 years old
- Condition
- Poor
- inspected March 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 159 ft
- 2 main spans
- Daily traffic
- 22,500
- 2019 count
- Owner
- City
- City or Municipal Highway Agency
About this bridge
1st Street over Arroyo Simi is a concrete continuous tee beam carrying 1st Street over Arroyo Simi in Ventura County, California. It was built in 1971, so it is 54 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 22,500 vehicles a day, roughly 1% of them trucks, projected to reach 34,316 by 2046. The structure is 159 ft (48.5 m) long and 96 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 | 7 Good | Some minor problems. |
| 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 1st Street over Arroyo Simi built?
It was built in 1971, making it 54 years old in 2025.
What condition is 1st Street 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 1st Street over Arroyo Simi carry?
About 22,500 vehicles per day (2019 count), of which roughly 1% are trucks.
How long is 1st Street over Arroyo Simi?
The structure is 159 ft (48.5 m) long with a longest span of 78 ft (23.8 m) and a deck 96 ft wide.
Who owns 1st Street over Arroyo Simi?
It is owned by the City or Municipal Highway Agency.