FHWA NBI 2024 Inspection record Public-domain dataset

HIRSCHDALE RD

Carrying HIRSCHDALE RD over TRUCKEE RIVER

AT HINTON, Nevada, California

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
15 t Inventory load rating Lower than 98% of rated California bridges

HIRSCHDALE RD in Nevada, California sits above 2% of rated California bridges on inventory load rating (15 t), while its 1926 build year is earlier than 92% of Nevada's recorded-year cohort (135 bridges).

HIRSCHDALE RD in Nevada, California is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1926, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 4. The lowest applicable rating sets the federal condition category, so this Poor 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:17C0045

PRE-1950 · CONCRETE · LONG-SPAN-RUN · TIED-CTRL · LOCAL-ADT · LIGHT-LOAD · CAT-POOR

  • PRE-1950 Pre-1950
  • CONCRETE Concrete
  • LONG-SPAN-RUN 5 spans
  • TIED-CTRL Tied control
  • LOCAL-ADT Local ADT
  • LIGHT-LOAD Light load
  • CAT-POOR Poor

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: HIRSCHDALE RD

The HIRSCHDALE RD bridge in Nevada, California carries HIRSCHDALE RD over TRUCKEE RIVER. It was built in 1926, making it 100 years old today. The structure is built primarily of concrete continuous and spans 5 sections, stretching 76.4 meters (251 feet) end to end. Daily traffic averages 70 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 4/9, superstructure at 5/9, substructure at 4/9. 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.

How HIRSCHDALE RD compares

▼ 17.2
Load rating vs California average (32.1 t; 25,538 of 25,848 rated)
135
Bridges in Nevada · 19 in Poor condition

Age against the county: built in 1926, earlier than 124 of Nevada's 135 bridges with a recorded construction year (92%), against a county median build year of 1969. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

HIRSCHDALE RD 14.9 t
California average (25,538 of 25,848 rated) 32.1 t

Live comparison across California bridges with a recorded inventory load rating (25,538 of 25,848 rated).

HIRSCHDALE RD vs every rated California bridge

Inventory load rating (metric tons), FHWA NBI, this state

15 Top 98% higher than 2% 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

Deck
4/9
Poor (1–4)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
14.9 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Nevada inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 135 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
1926
Material
Concrete Continuous
Number of Spans
5
Structure Length
76.4 m (251 ft)
Deck Width
7.7 m (25 ft)
Owner
County Highway Agency
Avg Daily Traffic
70 vehicles/day
Structure Number
17C0045

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration on the inspecting agency's 0-9 scale.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear on file for this vintage.

How to read this record

HIRSCHDALE 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 HIRSCHDALE RD 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 HIRSCHDALE RD?

HIRSCHDALE RD in Nevada, California has a deck rating of 4/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is HIRSCHDALE RD inspected?

HIRSCHDALE 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 70 vehicles per day.

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

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

HIRSCHDALE RD has an NBI inventory load rating of 14.9 metric tons.

Who is responsible for maintaining HIRSCHDALE RD?

HIRSCHDALE RD is owned and maintained by County Highway Agency.

How old is HIRSCHDALE RD and does age affect safety?

HIRSCHDALE RD was built in 1926, making it 100 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.