FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE 461

Carrying IRR BIA RTE 461 over UNNAMED CREEK

3.0 MI E. OF HYDABURG HWY, Prince of Wales-Hyder, Alaska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
41 t Inventory load rating

Bridge Snapshot: IRR BIA RTE 461

The IRR BIA RTE 461 bridge in Prince of Wales-Hyder, Alaska carries IRR BIA RTE 461 over UNNAMED CREEK. It was built in 1982, making it 44 years old today. The structure is built primarily of steel and spans 1 section, stretching 12.2 meters (40 feet) end to end. Daily traffic averages 10 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by Indian Tribal Government.

The latest FHWA inspection records show a deck rating of 6/9, superstructure at 5/9, substructure at 3/9. 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 40.8 metric tons.

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

How IRR BIA RTE 461 compares

▲ 6.0
Load rating vs Alaska average (34.8 t)
Top 28%
Higher load rating than 72% of Alaska bridges
185
Bridges in Prince of Wales-Hyder · 14 in Poor condition
IRR BIA RTE 461 40.8 t
Alaska average 34.8 t

Live comparison across Alaska.

Historical Sufficiency Rating

PlainBridge-computed
43.4 / 100 - historical 20–49.9 band
Structural adequacy /55
15.0
Serviceability /30
13.5
Essentiality /15
14.9
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 How the historical reference is calculated.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
6/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
3/9
Poor (1–4)
Inventory Load Rating
40.8 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1982
Material
Steel
Number of Spans
1
Structure Length
12.2 m (40 ft)
Deck Width
4.9 m (16 ft)
Owner
Indian Tribal Government
Avg Daily Traffic
10 vehicles/day
Structure Number
E09211T0461-020

Condition Analysis

  • At 6/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • At 5/9, the superstructure (beams and supports above the deck) shows fair condition, with minor wear flagged for upkeep.
  • The substructure (piers and abutments) is in poor condition (3/9), showing advanced deterioration that may require priority repair.

How to read this record

IRR BIA RTE 461 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 461 against other structures in Prince of Wales-Hyder 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 BIA RTE 461?

IRR BIA RTE 461 in Prince of Wales-Hyder, Alaska has a deck rating of 6/9, superstructure rating of 5/9, and substructure rating of 3/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE 461 inspected?

IRR BIA RTE 461'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 10 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 461 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 461?

IRR BIA RTE 461 has an NBI inventory load rating of 40.8 metric tons.

Who is responsible for maintaining IRR BIA RTE 461?

IRR BIA RTE 461 is owned and maintained by Indian Tribal Government.

How old is IRR BIA RTE 461 and does age affect safety?

IRR BIA RTE 461 was built in 1982, making it 44 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.