SHADY AV
Carrying SHADY AV over GOLD CANYON CRK
DAYTON, Lyon, Nevada
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
SHADY AV in Lyon, Nevada sits above 1% of rated Nevada bridges on inventory load rating (0 t), while its 1945 build year is earlier than 89% of Lyon's recorded-year cohort (53 bridges).
SHADY AV in Lyon, Nevada is rated Poor in the FHWA's 2024 National Bridge Inventory. Built in 1945, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 1. 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:B1711
PRE-1950 · TIMBER · SINGLE-SPAN · SUPER-LED · LOCAL-ADT · TRACE-LOAD · CAT-POOR
- PRE-1950 Pre-1950
- TIMBER Wood or timber
- SINGLE-SPAN Single span
- SUPER-LED Superstructure-led
- LOCAL-ADT Local ADT
- TRACE-LOAD Trace 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: SHADY AV
The SHADY AV bridge in Lyon, Nevada carries SHADY AV over GOLD CANYON CRK. It was built in 1945, making it 81 years old today. It was last reconstructed in 1986, extending its service life. The structure is built primarily of wood or timber and spans 1 section, stretching 7.0 meters (23 feet) end to end. Daily traffic averages 128 vehicles, placing it in the lower-traffic 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 1/9, substructure at 6/9. The weakest component sits in critical 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 SHADY AV compares
Age against the county: built in 1945, earlier than 47 of Lyon's 53 bridges with a recorded construction year (89%), 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.
Live comparison across Nevada bridges with a recorded inventory load rating (2,090 of 2,099 rated).
SHADY AV vs every rated Nevada bridge
Inventory load rating (metric tons), FHWA NBI, this state
0 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
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.
Lyon inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 53 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
- 1945
- Last Reconstructed
- 1986
- Material
- Wood or Timber
- Number of Spans
- 1
- Structure Length
- 7.0 m (23 ft)
- Deck Width
- 5.3 m (17 ft)
- Owner
- County Highway Agency
- Avg Daily Traffic
- 128 vehicles/day
- Structure Number
- B1711
Condition Analysis
- • The deck (driving surface) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) rates critical at 1/9, with severe deterioration on the latest inspection.
- • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
SHADY AV 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 SHADY AV against other structures in Lyon 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 SHADY AV?
SHADY AV in Lyon, Nevada has a deck rating of 5/9, superstructure rating of 1/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.
How often is SHADY AV inspected?
SHADY AV'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 128 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. SHADY AV 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 SHADY AV?
SHADY AV has an NBI inventory load rating of 0.0 metric tons.
Who is responsible for maintaining SHADY AV?
SHADY AV is owned and maintained by County Highway Agency.
How old is SHADY AV and does age affect safety?
SHADY AV was built in 1945, making it 81 years old and last reconstructed in 1986.
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.
Share this inspection record
Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.
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.