MADONNA RD
Carrying MADONNA RD over PREFUMO CREEK
SLO CTY, San Luis Obispo, California
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
MADONNA RD in San Luis Obispo, California sits above 1% of rated California bridges on inventory load rating (13 t), while its 1958 build year is earlier than 65% of San Luis Obispo's recorded-year cohort (401 bridges).
MADONNA RD in San Luis Obispo, California is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1958, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair result describes the weakest reported component rather than the structure as a whole. No NBI category is a closure decision or a live crossing-safety verdict.
NBI record plate
Structure CA:49C0372
INTERSTATE-ERA · CONCRETE · MULTI-SPAN · CULVERT-LED · HEAVY-ADT · LIGHT-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- MULTI-SPAN 3 spans
- CULVERT-LED Culvert-led
- HEAVY-ADT Heavy ADT
- LIGHT-LOAD Light load
- CAT-FAIR Fair
Inspection-sheet codes from this record’s year, material family, spans, controlling component, ADT, inventory load, and NBI category, not a live closure verdict.
Bridge Snapshot: MADONNA RD
The MADONNA RD bridge in San Luis Obispo, California carries MADONNA RD over PREFUMO CREEK. It was built in 1958, making it 68 years old today. It was last reconstructed in 1974, extending its service life. The structure is built primarily of concrete continuous and spans 3 sections, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 26,985 vehicles, placing it in the heavily-trafficked tier of California bridges. It is owned and maintained by City/Municipal Highway Agency.
The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. No reported major component scores in the Poor range under the current federal condition thresholds.
How MADONNA RD compares
Age against the county: built in 1958, earlier than 262 of San Luis Obispo's 401 bridges with a recorded construction year (65%), against a county median build year of 1964. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.
Live comparison across California bridges with a recorded inventory load rating (25,538 of 25,848 rated).
MADONNA RD vs every rated California bridge
Inventory load rating (metric tons), FHWA NBI, this state
13 Top 99% higher than 1% of 25,538 bridges
rated California bridges, bucketed by value
Each bar is a band; taller bars hold more bridges. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source FHWA National Bridge Inventory · August 2026
Condition Ratings
Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.
San Luis Obispo inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 401 bridges in this county. Orthogonal to this structure's component profile above: a county catalog share, not a live crossing-safety verdict.
Structural Details
- Year Built
- 1958
- Last Reconstructed
- 1974
- Material
- Concrete Continuous
- Number of Spans
- 3
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 30.2 m (99 ft)
- Owner
- City/Municipal Highway Agency
- Avg Daily Traffic
- 26,985 vehicles/day
- Structure Number
- 49C0372
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether MADONNA 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 MADONNA 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 MADONNA RD?
MADONNA RD in San Luis Obispo, California on the FHWA's 0–9 scale.
How often is MADONNA RD inspected?
MADONNA 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 26,985 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. MADONNA 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 MADONNA RD?
MADONNA RD has an NBI inventory load rating of 12.6 metric tons.
Who is responsible for maintaining MADONNA RD?
MADONNA RD is owned and maintained by City/Municipal Highway Agency.
How old is MADONNA RD and does age affect safety?
MADONNA RD was built in 1958, making it 68 years old and last reconstructed in 1974.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
Every figure on PlainBridges is rendered directly from federal source data, no number is typed in by an editor. Component ratings, ADT, and condition category on this page are copied from the NBI record for this structure; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2024 NBI release. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.