FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE 12

Carrying IRR BIA RTE 12 over HIGHLAND CANAL

4.7 KM SW OF OWYHEE, Elko, Nevada

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
4 t Inventory load rating

Bridge Snapshot: IRR BIA RTE 12

The IRR BIA RTE 12 bridge in Elko, Nevada carries IRR BIA RTE 12 over HIGHLAND CANAL. It was built in 1940, making it 86 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 6.8 meters (22 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 Bureau of Indian Affairs.

The latest FHWA inspection records show a deck rating of 4/9, superstructure at 6/9, substructure at 5/9. The weakest component sits in poor condition. A component scored 4 or below, placing this bridge in the federal Poor condition category rather than declaring it unsafe or closed. Its NBI inventory load rating is 3.8 metric tons.

Sourced from the FHWA National Bridge Inventory. See our methodology for refresh cadence and NBI release vintage.

How IRR BIA RTE 12 compares

▼ 42.8
Load rating vs Nevada average (46.6 t)
Bottom 1%
Lower load rating than 99% of Nevada bridges
224
Bridges in Elko · 6 in Poor condition
IRR BIA RTE 12 3.8 t
Nevada average 46.6 t

Live comparison across Nevada.

Historical Sufficiency Rating

PlainBridge-computed
37.0 / 100 - historical 20–49.9 band
Structural adequacy /55
0.0
Serviceability /30
22.0
Essentiality /15
15.0
Special reductions
0

FHWA discontinued this calculated item; it does not determine current condition, funding eligibility, posting, or closure. How the historical reference is calculated.

Condition Ratings

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

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

Structural Details

Year Built
1940
Material
Wood or Timber
Number of Spans
1
Structure Length
6.8 m (22 ft)
Deck Width
7.9 m (26 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
20 vehicles/day
Structure Number
00000000000H309

Condition Analysis

  • The deck (driving surface) rates poor at 4/9, advanced deterioration that should be prioritized for repair.
  • 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) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

IRR BIA RTE 12 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 IRR BIA RTE 12 against other structures in Elko 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 BIA RTE 12?

IRR BIA RTE 12 in Elko, Nevada has a deck rating of 4/9, superstructure rating of 6/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE 12 inspected?

IRR BIA RTE 12'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 BIA RTE 12 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 IRR BIA RTE 12?

IRR BIA RTE 12 has an NBI inventory load rating of 3.8 metric tons.

Who is responsible for maintaining IRR BIA RTE 12?

IRR BIA RTE 12 is owned and maintained by Bureau of Indian Affairs.

How old is IRR BIA RTE 12 and does age affect safety?

IRR BIA RTE 12 was built in 1940, making it 86 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

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.