I 580
Carrying I 580 over SR653 PLUMB LN
RENO, Washoe, Nevada
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
I 580 in Washoe, Nevada sits above 1% of rated Nevada bridges on inventory load rating (17 t), while its 1980 build year is earlier than 61% of Washoe's recorded-year cohort (334 bridges).
I 580 in Washoe, Nevada is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1980, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 6. The lowest applicable rating sets the federal condition category, so this Fair 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:I1250
LATE-CENTURY · PRESTRESS · LONG-SPAN-RUN · SUPER-LED · HEAVY-ADT · LIGHT-LOAD · CAT-FAIR
- LATE-CENTURY 1980–1999
- PRESTRESS Prestressed concrete
- LONG-SPAN-RUN 12 spans
- SUPER-LED Superstructure-led
- HEAVY-ADT Heavy ADT
- LIGHT-LOAD Light load
- CAT-FAIR Fair
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: I 580
The I 580 bridge in Washoe, Nevada carries I 580 over SR653 PLUMB LN. It was built in 1980, making it 46 years old today. The structure is built primarily of prestressed concrete continuous and spans 12 sections, stretching 470.3 meters (1543 feet) end to end. Daily traffic averages 146,000 vehicles, placing it in the heavily-trafficked tier of Nevada bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 7/9, superstructure at 6/9, 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.
How I 580 compares
Age against the county: built in 1980, earlier than 203 of Washoe's 334 bridges with a recorded construction year (61%), against a county median build year of 1989. 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).
I 580 vs every rated Nevada bridge
Inventory load rating (metric tons), FHWA NBI, this state
17 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.
Washoe inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 334 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
- 1980
- Material
- Prestressed Concrete Continuous
- Number of Spans
- 12
- Structure Length
- 470.3 m (1543 ft)
- Deck Width
- 40.8 m (134 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 146,000 vehicles/day
- Structure Number
- I1250
Condition Analysis
- • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
- • At 6/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
- • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.
Location
Data Source
FHWA National Bridge Inventory (NBI).
FHWA NBI Program ↗How to read this record
This page shows what the last federal inspection recorded, not whether I 580 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 I 580 against other structures in Washoe 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 I 580?
I 580 in Washoe, Nevada has a deck rating of 7/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is I 580 inspected?
I 580'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 146,000 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. I 580 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 I 580?
I 580 has an NBI inventory load rating of 17.0 metric tons.
Who is responsible for maintaining I 580?
I 580 is owned and maintained by State Highway Agency.
How old is I 580 and does age affect safety?
I 580 was built in 1980, making it 46 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.
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.