N RIDGE ROUTE RD
Carrying N RIDGE ROUTE RD over VIOLIN CRK
0.3MI S/O LAKE HUGHES RD, Los Angeles, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: N RIDGE ROUTE RD
The N RIDGE ROUTE RD bridge in Los Angeles, California carries N RIDGE ROUTE RD over VIOLIN CRK. It was built in 1986, making it 40 years old today. It was last reconstructed in 1992, extending its service life. The structure is built primarily of concrete and spans 1 section, stretching 19.8 meters (65 feet) end to end. Daily traffic averages 3,570 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 7/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 37.3 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How N RIDGE ROUTE RD 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 How the historical reference is calculated.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
- 1986
- Last Reconstructed
- 1992
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 19.8 m (65 ft)
- Deck Width
- 38.1 m (125 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 3,570 vehicles/day
- Structure Number
- 53C1831
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
- • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
How to read this record
This page shows what the last federal inspection recorded, not whether N RIDGE ROUTE RD 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 N RIDGE ROUTE RD 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 N RIDGE ROUTE RD?
N RIDGE ROUTE RD in Los Angeles, California has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is N RIDGE ROUTE RD inspected?
N RIDGE ROUTE RD'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 3,570 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. N RIDGE ROUTE RD is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for N RIDGE ROUTE RD?
N RIDGE ROUTE RD has an NBI inventory load rating of 37.3 metric tons.
Who is responsible for maintaining N RIDGE ROUTE RD?
N RIDGE ROUTE RD is owned and maintained by County Highway Agency.
How old is N RIDGE ROUTE RD and does age affect safety?
N RIDGE ROUTE RD was built in 1986, making it 40 years old and last reconstructed in 1992.
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.