FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE 3

Carrying IRR BIA RTE 3 over KELLY GULCH

15 KM E OF COOLIDGE DAM, Graham, Arizona

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
24 t Inventory load rating

Bridge Snapshot: IRR BIA RTE 3

The IRR BIA RTE 3 bridge in Graham, Arizona carries IRR BIA RTE 3 over KELLY GULCH. It was built in 1929, making it 97 years old today. The structure is built primarily of concrete and spans 4 sections, stretching 26.8 meters (88 feet) end to end. Daily traffic averages 390 vehicles, placing it in the lower-traffic tier of Arizona 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 4/9, substructure at 6/9. The weakest component sits in poor condition. Because at least one major component scores 4 or lower, this bridge falls in FHWA's Poor condition category. That category is not a closure order. Its NBI inventory load rating is 24.3 metric tons.

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

How IRR BIA RTE 3 compares

▼ 23.1
Load rating vs Arizona average (47.4 t)
Bottom 8%
Lower load rating than 92% of Arizona bridges
111
Bridges in Graham · 8 in Poor condition
IRR BIA RTE 3 24.3 t
Arizona average 47.4 t

Live comparison across Arizona.

Historical Sufficiency Rating

PlainBridge-computed
38.8 / 100 - historical 20–49.9 band
Structural adequacy /55
22.5
Serviceability /30
7.0
Essentiality /15
9.3
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 How the historical reference is calculated.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
4/9
Poor (1–4)
Substructure
6/9
Fair (5–6)
Inventory Load Rating
24.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1929
Material
Concrete
Number of Spans
4
Structure Length
26.8 m (88 ft)
Deck Width
7.6 m (25 ft)
Owner
Bureau of Indian Affairs
Avg Daily Traffic
390 vehicles/day
Structure Number
00000000000H173

Condition Analysis

  • The deck (driving surface) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • At 6/9, the substructure (piers and abutments) shows fair condition, with minor wear flagged for upkeep.

How to read this record

IRR BIA RTE 3 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 3 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 RTE 3?

IRR BIA RTE 3 in Graham, Arizona has a deck rating of 4/9, superstructure rating of 4/9, and substructure rating of 6/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE 3 inspected?

IRR BIA RTE 3'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 390 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 3 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 3?

IRR BIA RTE 3 has an NBI inventory load rating of 24.3 metric tons.

Who is responsible for maintaining IRR BIA RTE 3?

IRR BIA RTE 3 is owned and maintained by Bureau of Indian Affairs.

How old is IRR BIA RTE 3 and does age affect safety?

IRR BIA RTE 3 was built in 1929, making it 97 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.