FHWA NBI 2024 Inspection record Public-domain dataset

IRR:KELTY FIELD RD

Carrying IRR:KELTY FIELD RD over KELTY FIELD

UNALASKA, Aleutians West, Alaska

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Good
43 t Inventory load rating Higher than 72% of rated Alaska bridges

IRR:KELTY FIELD RD in Aleutians West, Alaska sits above 72% of rated Alaska bridges on inventory load rating (43 t), while its 1999 build year is earlier than 63% of Aleutians West's recorded-year cohort (8 bridges).

IRR:KELTY FIELD RD in Aleutians West, Alaska is rated Good in the FHWA's 2024 National Bridge Inventory. Built in 1999, it carries 1 rated component on the inspecting agency's 0-9 scale, and its weakest reported component scores 7. The lowest applicable rating sets the federal condition category, so this Good 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 AK:4045

LATE-CENTURY · STEEL · SINGLE-SPAN · CULVERT-LED · TRACE-ADT · HEAVY-LOAD · CAT-GOOD

  • LATE-CENTURY 1980–1999
  • STEEL Steel
  • SINGLE-SPAN Single span
  • CULVERT-LED Culvert-led
  • TRACE-ADT Trace ADT
  • HEAVY-LOAD Heavy load
  • CAT-GOOD Good

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:KELTY FIELD RD

The IRR:KELTY FIELD RD bridge in Aleutians West, Alaska carries IRR:KELTY FIELD RD over KELTY FIELD. It was built in 1999, making it 27 years old today. The structure is built primarily of steel and spans 1 section, stretching 7.6 meters (25 feet) end to end. Daily traffic averages 30 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by City/Municipal Highway Agency.

The latest FHWA inspection records show culvert at 7/9. The weakest component sits in good condition. None of this bridge's reported major components fall into the Poor condition range.

How IRR:KELTY FIELD RD compares

▲ 4.6
Load rating vs Alaska average (38.2 t; 1,679 of 1,685 rated)
8
Bridges in Aleutians West

Age against the county: built in 1999, earlier than 5 of Aleutians West's 8 bridges with a recorded construction year (63%), against a county median build year of 2001. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

IRR:KELTY FIELD RD 42.8 t
Alaska average (1,679 of 1,685 rated) 38.2 t

Live comparison across Alaska bridges with a recorded inventory load rating (1,679 of 1,685 rated).

IRR:KELTY FIELD RD vs every rated Alaska bridge

Inventory load rating (metric tons), FHWA NBI, this state

43 Top 28% higher than 72% of 1,679 bridges

rated Alaska 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

Culvert
7/9
Good (7–9)
Inventory Load Rating
42.8 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Aleutians West inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 8 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
1999
Material
Steel
Number of Spans
1
Structure Length
7.6 m (25 ft)
0
Owner
City/Municipal Highway Agency
Avg Daily Traffic
30 vehicles/day
Structure Number
4045

How to read this record

This page shows what the last federal inspection recorded, not whether IRR:KELTY FIELD RD 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:KELTY FIELD RD against other structures in Aleutians West and across Alaska. Alaska 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:KELTY FIELD RD?

IRR:KELTY FIELD RD in Aleutians West, Alaska on the FHWA's 0–9 scale.

How often is IRR:KELTY FIELD RD inspected?

IRR:KELTY FIELD RD'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 30 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. IRR:KELTY FIELD RD is currently shown as Good condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for IRR:KELTY FIELD RD?

IRR:KELTY FIELD RD has an NBI inventory load rating of 42.8 metric tons.

Who is responsible for maintaining IRR:KELTY FIELD RD?

IRR:KELTY FIELD RD is owned and maintained by City/Municipal Highway Agency.

How old is IRR:KELTY FIELD RD and does age affect safety?

IRR:KELTY FIELD RD was built in 1999, making it 27 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

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Send this source-bounded record or download its data card. An NBI condition category is not a closure or live crossing-safety verdict.

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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.