FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE N9504

Carrying IRR BIA RTE N9504 over FIQUERDO WASH

SOUTH EDGE NAKAIBITO NM, McKinley, New Mexico

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
7 t Inventory load rating

Bridge Snapshot: IRR BIA RTE N9504

The IRR BIA RTE N9504 bridge in McKinley, New Mexico carries IRR BIA RTE N9504 over FIQUERDO WASH. It was built in 1976, making it 50 years old today. The structure is built primarily of aluminum/iron and spans 1 section, stretching 27.2 meters (89 feet) end to end. Daily traffic averages 140 vehicles, placing it in the lower-traffic tier of New Mexico bridges. It is owned and maintained by Bureau of Indian Affairs.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 3/9. The weakest component sits in poor condition. At least one major component here scores 4 or below, which produces a Poor condition classification under FHWA's current reporting rules. Its NBI inventory load rating is 6.7 metric tons.

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

How IRR BIA RTE N9504 compares

▼ 28.1
Load rating vs New Mexico average (34.8 t)
Bottom 1%
Lower load rating than 99% of New Mexico bridges
58
Bridges in McKinley · 11 in Poor condition
IRR BIA RTE N9504 6.7 t
New Mexico average 34.8 t

Live comparison across New Mexico.

Historical Sufficiency Rating

PlainBridge-computed
17.6 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
4.0
Essentiality /15
13.6
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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
6.7 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1976
Material
Aluminum/Iron
Number of Spans
1
Structure Length
27.2 m (89 ft)
Deck Width
4.7 m (15 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
140 vehicles/day
Structure Number
00000000000N660

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) is in fair condition (5/9), with minor deterioration that may require routine maintenance.
  • The substructure (piers and abutments) is in poor condition (3/9), showing advanced deterioration that may require priority repair.

How to read this record

IRR BIA RTE N9504 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 N9504 against other structures in McKinley and across New Mexico. New Mexico 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 N9504?

IRR BIA RTE N9504 in McKinley, New Mexico has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE N9504 inspected?

IRR BIA RTE N9504'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 140 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 N9504 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 N9504?

IRR BIA RTE N9504 has an NBI inventory load rating of 6.7 metric tons.

Who is responsible for maintaining IRR BIA RTE N9504?

IRR BIA RTE N9504 is owned and maintained by Bureau of Indian Affairs.

How old is IRR BIA RTE N9504 and does age affect safety?

IRR BIA RTE N9504 was built in 1976, making it 50 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.