FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA 103

Carrying IRR BIA 103 over WASH

1.5 KM NW OF PERIDOT, Graham, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Fair
33 t Inventory load rating

Bridge Snapshot: IRR BIA 103

The IRR BIA 103 bridge in Graham, Arizona carries IRR BIA 103 over WASH. It was built in 1980, making it 46 years old today. The structure is built primarily of concrete and spans 3 sections, stretching 11.3 meters (37 feet) end to end. Daily traffic averages 2,000 vehicles, placing it in the moderately-trafficked tier of Arizona bridges. It is owned and maintained by Bureau of Indian Affairs.

The latest FHWA inspection records show culvert at 6/9. The weakest component sits in fair condition. All reported major components score above the Poor range. Its NBI inventory load rating is 32.6 metric tons.

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

How IRR BIA 103 compares

▼ 14.8
Load rating vs Arizona average (47.4 t)
Bottom 25%
Lower load rating than 75% of Arizona bridges
111
Bridges in Graham · 8 in Poor condition
IRR BIA 103 32.6 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
87.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
18.0
Essentiality /15
14.1
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 How the historical reference is calculated.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

Culvert
6/9
Fair (5–6)
Inventory Load Rating
32.6 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Structural Details

Year Built
1980
Material
Concrete
Number of Spans
3
Structure Length
11.3 m (37 ft)
Deck Width
18.4 m (60 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
2,000 vehicles/day
Structure Number
0000H58616B0836

How to read this record

This page shows what the last federal inspection recorded, not whether IRR BIA 103 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 BIA 103 against other structures in Graham and across Arizona. Arizona 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 103?

IRR BIA 103 in Graham, Arizona on the FHWA's 0–9 scale.

How often is IRR BIA 103 inspected?

IRR BIA 103'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 2,000 vehicles per day.

What does “structurally deficient” mean in older bridge reports?

FHWA retired that reported status beginning with the 2018 archive. IRR BIA 103 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 BIA 103?

IRR BIA 103 has an NBI inventory load rating of 32.6 metric tons.

Who is responsible for maintaining IRR BIA 103?

IRR BIA 103 is owned and maintained by Bureau of Indian Affairs.

How old is IRR BIA 103 and does age affect safety?

IRR BIA 103 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.

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.