FHWA NBI 2024 Inspection record Public-domain dataset

SIX MILE CANYON RD

Carrying SIX MILE CANYON RD over SIX MILE CANYON CRK

WEST OF DAYTON, Storey, Nevada

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Poor
16 t Inventory load rating Lower than 99% of rated Nevada bridges

SIX MILE CANYON RD in Storey, Nevada sits above 1% of rated Nevada bridges on inventory load rating (16 t), while its 1997 build year is earlier than 50% of Storey's recorded-year cohort (10 bridges).

SIX MILE CANYON RD in Storey, Nevada is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1997, 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 NV:B2476

LATE-CENTURY · STEEL · SINGLE-SPAN · SUPER-LED · ARTERIAL-ADT · LIGHT-LOAD · CAT-POOR

  • LATE-CENTURY 1980–1999
  • STEEL Steel
  • SINGLE-SPAN Single span
  • SUPER-LED Superstructure-led
  • ARTERIAL-ADT Arterial 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: SIX MILE CANYON RD

The SIX MILE CANYON RD bridge in Storey, Nevada carries SIX MILE CANYON RD over SIX MILE CANYON CRK. It was built in 1997, making it 29 years old today. The structure is built primarily of steel and spans 1 section, stretching 15.3 meters (50 feet) end to end. Daily traffic averages 1,050 vehicles, placing it in the moderately-trafficked tier of Nevada bridges. It is owned and maintained by County Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 4/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order.

How SIX MILE CANYON RD compares

▼ 31.6
Load rating vs Nevada average (47.2 t; 2,090 of 2,099 rated)
10
Bridges in Storey · 3 in Poor condition

Age against the county: built in 1997, earlier than 5 of Storey's 10 bridges with a recorded construction year (50%), against a county median build year of 1997.

SIX MILE CANYON RD 15.6 t
Nevada average (2,090 of 2,099 rated) 47.2 t

Live comparison across Nevada bridges with a recorded inventory load rating (2,090 of 2,099 rated).

SIX MILE CANYON RD vs every rated Nevada bridge

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

16 Top 99% higher than 1% of 2,090 bridges

rated Nevada 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
5/9
Fair (5–6)
Superstructure
4/9
Poor (1–4)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
15.6 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.

Storey inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 10 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
1997
Material
Steel
Number of Spans
1
Structure Length
15.3 m (50 ft)
Deck Width
9.4 m (31 ft)
Owner
County Highway Agency
Avg Daily Traffic
1,050 vehicles/day
Structure Number
B2476

Condition Analysis

  • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • At 4/9, the superstructure (beams and supports above the deck) is in poor shape, with advanced wear on file for this vintage.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

SIX MILE CANYON 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 SIX MILE CANYON RD against other structures in Storey and across Nevada. Nevada 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 SIX MILE CANYON RD?

SIX MILE CANYON RD in Storey, Nevada has a deck rating of 5/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is SIX MILE CANYON RD inspected?

SIX MILE CANYON 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 1,050 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. SIX MILE CANYON 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 SIX MILE CANYON RD?

SIX MILE CANYON RD has an NBI inventory load rating of 15.6 metric tons.

Who is responsible for maintaining SIX MILE CANYON RD?

SIX MILE CANYON RD is owned and maintained by County Highway Agency.

How old is SIX MILE CANYON RD and does age affect safety?

SIX MILE CANYON RD was built in 1997, making it 29 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.