FHWA NBI 2024 Inspection record Public-domain dataset

IRR BIA RTE 1048

Carrying IRR BIA RTE 1048 over WINDY CREEK RIGHT

16.6 Mi SE of Port Graham, Kenai Peninsula, Alaska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
7 t Inventory load rating

Bridge Snapshot: IRR BIA RTE 1048

The IRR BIA RTE 1048 bridge in Kenai Peninsula, Alaska carries IRR BIA RTE 1048 over WINDY CREEK RIGHT. It was built in 1997, making it 29 years old today. The structure is built primarily of steel and spans 1 section, stretching 18.3 meters (60 feet) end to end. Daily traffic averages 2 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 0/9, superstructure at 4/9, substructure at 7/9. The weakest component sits in critical 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 7.3 metric tons.

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

How IRR BIA RTE 1048 compares

▼ 27.5
Load rating vs Alaska average (34.8 t)
Bottom 2%
Lower load rating than 98% of Alaska bridges
45
Bridges in Kenai Peninsula · 10 in Poor condition
IRR BIA RTE 1048 7.3 t
Alaska average 34.8 t

Live comparison across Alaska.

Historical Sufficiency Rating

PlainBridge-computed
16.2 / 100 - historical under-20 band
Structural adequacy /55
0.0
Serviceability /30
2.0
Essentiality /15
14.2
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 How the historical reference is calculated.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
0/9
Failed (0)
Superstructure
4/9
Poor (1–4)
Substructure
7/9
Good (7–9)
Inventory Load Rating
7.3 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1997
Material
Steel
Number of Spans
1
Structure Length
18.3 m (60 ft)
Deck Width
4.4 m (14 ft)
Owner
Indian Tribal Government
Avg Daily Traffic
2 vehicles/day
Structure Number
000000001048-20

Condition Analysis

  • The deck (driving surface) is in critical condition (0/9), with severe deterioration requiring urgent attention.
  • The superstructure (beams and supports above the deck) is in poor condition (4/9), showing advanced deterioration that may require priority repair.
  • The substructure (piers and abutments) rates good at 7/9, with no significant deterioration on file.

How to read this record

IRR BIA RTE 1048 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 1048 against other structures in Kenai Peninsula 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 1048?

IRR BIA RTE 1048 in Kenai Peninsula, Alaska has a deck rating of 0/9, superstructure rating of 4/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is IRR BIA RTE 1048 inspected?

IRR BIA RTE 1048'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 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 1048 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 1048?

IRR BIA RTE 1048 has an NBI inventory load rating of 7.3 metric tons.

Who is responsible for maintaining IRR BIA RTE 1048?

IRR BIA RTE 1048 is owned and maintained by Indian Tribal Government.

How old is IRR BIA RTE 1048 and does age affect safety?

IRR BIA RTE 1048 was built in 1997, making it 29 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.