FHWA NBI 2024 Inspection record Public-domain dataset

FDR 20-17-04

Carrying FDR 20-17-04 over S. YUBA CANAL

S32 T17N R11E, Nevada, California

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good

Bridge Snapshot: FDR 20-17-04

The FDR 20-17-04 bridge in Nevada, California carries FDR 20-17-04 over S. YUBA CANAL. It was built in 1972, making it 54 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 9.4 meters (31 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of California bridges. It is owned and maintained by U.S. Forest Service.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. All reported major components score above the Poor range.

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

How FDR 20-17-04 compares

135
Bridges in Nevada · 16 in Poor condition

Live comparison across California.

Historical Sufficiency Rating

PlainBridge-computed
78.0 / 100 - historical 50–79.9 band
Structural adequacy /55
55.0
Serviceability /30
11.0
Essentiality /15
15.0
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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Overall Condition
Good

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

Structural Details

Year Built
1972
Material
Wood or Timber
Number of Spans
1
Structure Length
9.4 m (31 ft)
Deck Width
4.3 m (14 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
50 vehicles/day
Structure Number
051755000001018

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) is in good condition (7/9), showing no significant deterioration.
  • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.

How to read this record

This page shows what the last federal inspection recorded, not whether FDR 20-17-04 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 FDR 20-17-04 against other structures in Nevada 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 FDR 20-17-04?

FDR 20-17-04 in Nevada, California has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is FDR 20-17-04 inspected?

FDR 20-17-04'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. FDR 20-17-04 is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for FDR 20-17-04?

An inventory load rating is not recorded for FDR 20-17-04.

Who is responsible for maintaining FDR 20-17-04?

FDR 20-17-04 is owned and maintained by U.S. Forest Service.

How old is FDR 20-17-04 and does age affect safety?

FDR 20-17-04 was built in 1972, making it 54 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.