THE OLD RD
Carrying THE OLD RD over CASTAIC CRK
0.8MI N/O SR-126 HWY, Los Angeles, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: THE OLD RD
The THE OLD RD bridge in Los Angeles, California carries THE OLD RD over CASTAIC CRK. It was built in 1931, making it 95 years old today. The structure is built primarily of concrete and spans 7 sections, stretching 75.3 meters (247 feet) end to end. Daily traffic averages 11,505 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 4/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 27.2 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How THE OLD 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 How the historical reference is calculated.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
- 1931
- Material
- Concrete
- Number of Spans
- 7
- Structure Length
- 75.3 m (247 ft)
- Deck Width
- 11.7 m (38 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 11,505 vehicles/day
- Structure Number
- 53C1403
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in good condition (7/9), showing no significant deterioration.
- • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
- • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.
How to read this record
THE OLD RD is in the federal Poor condition category. That is a component-based result, not a closure order.
- NBI condition ratings reflect the latest record in this annual dataset, not a live status. Current routine inspection intervals are risk-based.
- Understand what Poor condition does and does not mean before drawing conclusions. Poor condition explained
- Compare THE OLD 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 THE OLD RD?
THE OLD RD in Los Angeles, California has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is THE OLD RD inspected?
THE OLD 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 11,505 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. THE OLD RD is currently shown as Poor condition from its component ratings; that category is not a live closure or safety decision.
What is the inventory load rating for THE OLD RD?
THE OLD RD has an NBI inventory load rating of 27.2 metric tons.
Who is responsible for maintaining THE OLD RD?
THE OLD RD is owned and maintained by County Highway Agency.
How old is THE OLD RD and does age affect safety?
THE OLD RD was built in 1931, making it 95 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.