FHWA NBI 2024 Inspection record Public-domain dataset

LOPEZ DR

Carrying LOPEZ DR over LOPEZ LAKE SPILLWAY

2.64 MI N/E ORCUTT RD, San Luis Obispo, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
22 t Inventory load rating

Bridge Snapshot: LOPEZ DR

The LOPEZ DR bridge in San Luis Obispo, California carries LOPEZ DR over LOPEZ LAKE SPILLWAY. It was built in 1968, making it 58 years old today. The structure is built primarily of prestressed concrete and spans 1 section, stretching 21.9 meters (72 feet) end to end. Daily traffic averages 2,728 vehicles, placing it in the moderately-trafficked tier of California bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in fair condition. None of this bridge's reported major components fall into the Poor condition range. Its NBI inventory load rating is 21.7 metric tons.

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

How LOPEZ DR compares

▼ 9.6
Load rating vs California average (31.3 t)
Bottom 15%
Lower load rating than 85% of California bridges
408
Bridges in San Luis Obispo · 19 in Poor condition
LOPEZ DR 21.7 t
California average 31.3 t

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
73.2 / 100 - historical 50–79.9 band
Structural adequacy /55
43.6
Serviceability /30
26.0
Essentiality /15
3.8
Special reductions
−0.2

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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
21.7 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1968
Material
Prestressed Concrete
Number of Spans
1
Structure Length
21.9 m (72 ft)
Deck Width
10.4 m (34 ft)
Owner
County Highway Agency
Avg Daily Traffic
2,728 vehicles/day
Structure Number
49C0353

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

This page shows what the last federal inspection recorded, not whether LOPEZ DR 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 LOPEZ DR 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 LOPEZ DR?

LOPEZ DR in San Luis Obispo, California has a deck rating of 6/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is LOPEZ DR inspected?

LOPEZ DR'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 2,728 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. LOPEZ DR 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 LOPEZ DR?

LOPEZ DR has an NBI inventory load rating of 21.7 metric tons.

Who is responsible for maintaining LOPEZ DR?

LOPEZ DR is owned and maintained by County Highway Agency.

How old is LOPEZ DR and does age affect safety?

LOPEZ DR was built in 1968, making it 58 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.