NAT TRAILS HWY
Carrying NAT TRAILS HWY over BANDERA WASH
26.1 MI E KELBAKER RD, San Bernardino, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: NAT TRAILS HWY
The NAT TRAILS HWY bridge in San Bernardino, California carries NAT TRAILS HWY over BANDERA WASH. It was built in 1930, making it 96 years old today. It was last reconstructed in 1953, extending its service life. The structure is built primarily of wood or timber and spans 8 sections, stretching 46.9 meters (154 feet) end to end. Daily traffic averages 502 vehicles, placing it in the lower-traffic 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 4/9, 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 10.0 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How NAT TRAILS HWY 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 How the historical reference is calculated.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
- 1930
- Last Reconstructed
- 1953
- Material
- Wood or Timber
- Number of Spans
- 8
- Structure Length
- 46.9 m (154 ft)
- Deck Width
- 8.5 m (28 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 502 vehicles/day
- Structure Number
- 54C0323
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 poor condition (4/9), showing advanced deterioration that may require priority repair.
- • The substructure (piers and abutments) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
How to read this record
NAT TRAILS HWY 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 NAT TRAILS HWY against other structures in San Bernardino 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 NAT TRAILS HWY?
NAT TRAILS HWY in San Bernardino, California has a deck rating of 7/9, superstructure rating of 4/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.
How often is NAT TRAILS HWY inspected?
NAT TRAILS HWY'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 502 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. NAT TRAILS HWY 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 NAT TRAILS HWY?
NAT TRAILS HWY has an NBI inventory load rating of 10.0 metric tons.
Who is responsible for maintaining NAT TRAILS HWY?
NAT TRAILS HWY is owned and maintained by County Highway Agency.
How old is NAT TRAILS HWY and does age affect safety?
NAT TRAILS HWY was built in 1930, making it 96 years old and last reconstructed in 1953.
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.