RTE 405 ACCESS OC
Carrying RTE 405 ACCESS OC over RTE 55 RAMP TRAFFIC
50 FT W/O MACARTHUR BLVD, Orange, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: RTE 405 ACCESS OC
The RTE 405 ACCESS OC bridge in Orange, California carries RTE 405 ACCESS OC over RTE 55 RAMP TRAFFIC. It was built in 1990, making it 36 years old today. The structure is built primarily of concrete and spans 1 section, stretching 12.5 meters (41 feet) end to end. Daily traffic averages 10,000 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by Other Local Agencies.
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 32.4 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How RTE 405 ACCESS OC 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 How the historical reference is calculated.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
- 1990
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 12.5 m (41 ft)
- Deck Width
- 9.1 m (30 ft)
- Owner
- Other Local Agencies
- Avg Daily Traffic
- 10,000 vehicles/day
- Structure Number
- 55C0654
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
- • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.
How to read this record
This page shows what the last federal inspection recorded, not whether RTE 405 ACCESS OC 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 RTE 405 ACCESS OC against other structures in Orange 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 RTE 405 ACCESS OC?
RTE 405 ACCESS OC in Orange, 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 RTE 405 ACCESS OC inspected?
RTE 405 ACCESS OC'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 10,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. RTE 405 ACCESS OC 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 RTE 405 ACCESS OC?
RTE 405 ACCESS OC has an NBI inventory load rating of 32.4 metric tons.
Who is responsible for maintaining RTE 405 ACCESS OC?
RTE 405 ACCESS OC is owned and maintained by Other Local Agencies.
How old is RTE 405 ACCESS OC and does age affect safety?
RTE 405 ACCESS OC was built in 1990, making it 36 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.