DOVER CANYON RD
Carrying DOVER CANYON RD over JACK CREEK
1.3 MI SW OF VINEYARD DR, San Luis Obispo, California
Data updated May 2026
FHWA NBI record, refreshed with each annual release.
Bridge Snapshot: DOVER CANYON RD
The DOVER CANYON RD bridge in San Luis Obispo, California carries DOVER CANYON RD over JACK CREEK. It was built in 1920, making it 106 years old today. The structure is built primarily of steel and spans 1 section, stretching 19.2 meters (63 feet) end to end. Daily traffic averages 151 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 5/9, superstructure at 5/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 10.7 metric tons.
Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.
How DOVER CANYON 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 How the historical reference is calculated.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
- 1920
- Material
- Steel
- Number of Spans
- 1
- Structure Length
- 19.2 m (63 ft)
- Deck Width
- 4.7 m (15 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 151 vehicles/day
- Structure Number
- 49C0037
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
How to read this record
This page shows what the last federal inspection recorded, not whether DOVER CANYON 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 DOVER CANYON RD against other structures in San Luis Obispo 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 DOVER CANYON RD?
DOVER CANYON RD in San Luis Obispo, California has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.
How often is DOVER CANYON RD inspected?
DOVER CANYON 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 151 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. DOVER CANYON 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 DOVER CANYON RD?
DOVER CANYON RD has an NBI inventory load rating of 10.7 metric tons.
Who is responsible for maintaining DOVER CANYON RD?
DOVER CANYON RD is owned and maintained by County Highway Agency.
How old is DOVER CANYON RD and does age affect safety?
DOVER CANYON RD was built in 1920, making it 106 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.