IRR CORDERO MINE R
Carrying IRR CORDERO MINE R over MCDERMITT CRK
SOUTHWEST OF MCDERMITT, Humboldt, Nevada
Inventory: FHWA NBI 2024 · last ETL August 2026
FHWA NBI record, refreshed with each annual release.
IRR CORDERO MINE R in Humboldt, Nevada sits above 25% of rated Nevada bridges on inventory load rating (32 t), while its 1957 build year is earlier than 85% of Humboldt's recorded-year cohort (54 bridges).
IRR CORDERO MINE R in Humboldt, Nevada is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1957, 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:B 692
INTERSTATE-ERA · CONCRETE · SINGLE-SPAN · TIED-CTRL · TRACE-ADT · STANDARD-LOAD · CAT-FAIR
- INTERSTATE-ERA 1950–1979
- CONCRETE Concrete
- SINGLE-SPAN Single span
- TIED-CTRL Tied control
- TRACE-ADT Trace ADT
- STANDARD-LOAD Standard 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: IRR CORDERO MINE R
The IRR CORDERO MINE R bridge in Humboldt, Nevada carries IRR CORDERO MINE R over MCDERMITT CRK. It was built in 1957, making it 69 years old today. The structure is built primarily of concrete and spans 1 section, stretching 11.9 meters (39 feet) end to end. Daily traffic averages 20 vehicles, placing it in the lower-traffic tier of Nevada bridges. It is owned and maintained by State Highway Agency.
The latest FHWA inspection records show a deck rating of 6/9, superstructure at 6/9, substructure at 7/9. The weakest component sits in fair condition. All reported major components score above the Poor range.
How IRR CORDERO MINE R compares
Age against the county: built in 1957, earlier than 46 of Humboldt's 54 bridges with a recorded construction year (85%), against a county median build year of 1970. 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).
IRR CORDERO MINE R vs every rated Nevada bridge
Inventory load rating (metric tons), FHWA NBI, this state
32 Top 75% higher than 25% 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.
Humboldt inventory by recorded NBI category
Exclusive Good/Fair/Poor bands across all 54 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
- 1957
- Material
- Concrete
- Number of Spans
- 1
- Structure Length
- 11.9 m (39 ft)
- Deck Width
- 8.4 m (28 ft)
- Owner
- State Highway Agency
- Avg Daily Traffic
- 20 vehicles/day
- Structure Number
- B 692
Condition Analysis
- • The deck (driving surface) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The superstructure (beams and supports above the deck) is in fair condition (6/9), with minor deterioration that may require routine maintenance.
- • The substructure (piers and abutments) is in good condition (7/9), showing no significant deterioration.
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 IRR CORDERO MINE R 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 IRR CORDERO MINE R against other structures in Humboldt 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 IRR CORDERO MINE R?
IRR CORDERO MINE R in Humboldt, Nevada has a deck rating of 6/9, superstructure rating of 6/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.
How often is IRR CORDERO MINE R inspected?
IRR CORDERO MINE R'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 20 vehicles per day.
What does “structurally deficient” mean in older bridge reports?
FHWA retired that reported status beginning with the 2018 archive. IRR CORDERO MINE R 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 IRR CORDERO MINE R?
IRR CORDERO MINE R has an NBI inventory load rating of 32.3 metric tons.
Who is responsible for maintaining IRR CORDERO MINE R?
IRR CORDERO MINE R is owned and maintained by State Highway Agency.
How old is IRR CORDERO MINE R and does age affect safety?
IRR CORDERO MINE R was built in 1957, making it 69 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.