FHWA NBI 2024 Inspection record Public-domain dataset

PRADO RD

Carrying PRADO RD over SAN LUIS OBISPO CREEK

0.1 MI W HIGUERA ST, San Luis Obispo, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
31 t Inventory load rating

Bridge Snapshot: PRADO RD

The PRADO RD bridge in San Luis Obispo, California carries PRADO RD over SAN LUIS OBISPO CREEK. It was built in 1957, making it 69 years old today. The structure is built primarily of concrete continuous and spans 3 sections, stretching 37.4 meters (123 feet) end to end. Daily traffic averages 6,796 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 30.8 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How PRADO RD compares

▼ 0.5
Load rating vs California average (31.3 t)
Bottom 38%
Lower load rating than 62% of California bridges
408
Bridges in San Luis Obispo · 19 in Poor condition
PRADO RD 30.8 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
73.5 / 100 - historical 50–79.9 band
Structural adequacy /55
54.3
Serviceability /30
8.0
Essentiality /15
14.1
Special reductions
−3.0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

Deck
4/9
Poor (1–4)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
30.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

Full 0–9 scale + sufficiency-rating breakdown: how condition ratings work.

Structural Details

Year Built
1957
Material
Concrete Continuous
Number of Spans
3
Structure Length
37.4 m (123 ft)
Deck Width
8.1 m (27 ft)
Owner
City/Municipal Highway Agency
Avg Daily Traffic
6,796 vehicles/day
Structure Number
49C0107

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

PRADO 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 PRADO 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 PRADO RD?

PRADO RD in San Luis Obispo, California has a deck rating of 4/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is PRADO RD inspected?

PRADO 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 6,796 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. PRADO 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 PRADO RD?

PRADO RD has an NBI inventory load rating of 30.8 metric tons.

Who is responsible for maintaining PRADO RD?

PRADO RD is owned and maintained by City/Municipal Highway Agency.

How old is PRADO RD and does age affect safety?

PRADO RD was built in 1957, making it 69 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.

Data sourced from the Federal Highway Administration National Bridge Inventory. See our methodology for details. Retrieved and formatted by PlainBridges

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.