S405-LA CIENEGA OF
Carrying S405-LA CIENEGA OF over IMPERIAL HWY & S405 ON
07-LA-405-R21.22-LA, Los Angeles, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: S405-LA CIENEGA OF
The S405-LA CIENEGA OF bridge in Los Angeles, California carries S405-LA CIENEGA OF over IMPERIAL HWY & S405 ON. It was built in 1994, making it 32 years old today. The structure is built primarily of prestressed concrete continuous. Daily traffic averages 22,500 vehicles, placing it in the heavily-trafficked tier of California bridges.
The latest FHWA inspection records show limited component ratings on file. The weakest component sits in unrated condition. All reported major components score above the Poor range.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How S405-LA CIENEGA OF compares
Live comparison across California.
Historical Sufficiency Rating
PlainBridge-computedFHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
Structural Details
- Year Built
- 1994
- Material
- Prestressed Concrete Continuous
- Avg Daily Traffic
- 22,500 vehicles/day
- Structure Number
- 53 1241J
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether S405-LA CIENEGA OF is safe to cross today. Here is how to use it.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Learn how the 0–9 condition scale and Good/Fair/Poor categories are defined. How condition ratings work
- Compare S405-LA CIENEGA OF against other structures in Los Angeles and across California. California bridges
- Noticed visible damage or a safety concern? Report it to the agency that owns the bridge, or call 911 in an emergency. How to report a bridge
Condition codes come straight from the FHWA National Bridge Inventory and are not a real-time safety judgment. Only the owning agency, a state DOT, county, or other owner, can post, restrict, or close a bridge.
Frequently Asked Questions
What do the condition ratings mean for S405-LA CIENEGA OF?
S405-LA CIENEGA OF in Los Angeles, California on the FHWA's 0–9 scale.
How often is S405-LA CIENEGA OF inspected?
S405-LA CIENEGA OF's responsible agency sets its routine interval under FHWA's risk-based inspection rules; this page does not expose the scheduled interval. It carries about 22,500 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. S405-LA CIENEGA OF is currently shown as unrated condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for S405-LA CIENEGA OF?
An inventory load rating is not recorded for S405-LA CIENEGA OF.
Who is responsible for maintaining S405-LA CIENEGA OF?
Ownership is not specified for S405-LA CIENEGA OF in the NBI.
How old is S405-LA CIENEGA OF and does age affect safety?
S405-LA CIENEGA OF was built in 1994, making it 32 years old.
Disclaimer: Bridge condition data is from the FHWA NBI and reflects the last reported inspection. A Poor condition rating is not a live declaration that a bridge is closed or unsafe for travel. For current closure, posting, or safety information, contact the responsible transportation agency.
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.