FHWA NBI 2024 Inspection record Public-domain dataset

ALASKA HIGHWAY

Carrying ALASKA HIGHWAY over GERSTLE RIVER

MILE POINT 168.3, Southeast Fairbanks, Alaska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Poor
27 t Inventory load rating

Bridge Snapshot: ALASKA HIGHWAY

The ALASKA HIGHWAY bridge in Southeast Fairbanks, Alaska carries ALASKA HIGHWAY over GERSTLE RIVER. It was built in 1944, making it 82 years old today. The structure is built primarily of steel and spans 9 sections, stretching 554.6 meters (1820 feet) end to end. Daily traffic averages 180 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by State Highway Agency.

The latest FHWA inspection records show a deck rating of 5/9, superstructure at 5/9, substructure at 4/9. 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 26.6 metric tons.

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

How ALASKA HIGHWAY compares

▼ 8.2
Load rating vs Alaska average (34.8 t)
Bottom 33%
Lower load rating than 67% of Alaska bridges
32
Bridges in Southeast Fairbanks · 6 in Poor condition
ALASKA HIGHWAY 26.6 t
Alaska average 34.8 t

Live comparison across Alaska.

Historical Sufficiency Rating

PlainBridge-computed
44.0 / 100 - historical 20–49.9 band
Structural adequacy /55
25.5
Serviceability /30
18.8
Essentiality /15
9.8
Special reductions
−10.0

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 How the historical reference is calculated.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
5/9
Fair (5–6)
Superstructure
5/9
Fair (5–6)
Substructure
4/9
Poor (1–4)
Inventory Load Rating
26.6 t
NBI inventory level (metric tons)
Overall Condition
Poor

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

Structural Details

Year Built
1944
Material
Steel
Number of Spans
9
Structure Length
554.6 m (1820 ft)
Deck Width
8.2 m (27 ft)
Owner
State Highway Agency
Avg Daily Traffic
180 vehicles/day
Structure Number
0520

Condition Analysis

  • At 5/9, the deck (driving surface) shows fair condition, with minor wear flagged for upkeep.
  • The superstructure (beams and supports above the deck) rates fair at 5/9, minor deterioration that routine maintenance should address.
  • At 4/9, the substructure (piers and abutments) is in poor shape, with advanced wear flagged for priority repair.

How to read this record

ALASKA HIGHWAY 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 ALASKA HIGHWAY against other structures in Southeast Fairbanks 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 ALASKA HIGHWAY?

ALASKA HIGHWAY in Southeast Fairbanks, Alaska has a deck rating of 5/9, superstructure rating of 5/9, and substructure rating of 4/9 on the FHWA's 0–9 scale.

How often is ALASKA HIGHWAY inspected?

ALASKA HIGHWAY'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 180 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ALASKA HIGHWAY 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 ALASKA HIGHWAY?

ALASKA HIGHWAY has an NBI inventory load rating of 26.6 metric tons.

Who is responsible for maintaining ALASKA HIGHWAY?

ALASKA HIGHWAY is owned and maintained by State Highway Agency.

How old is ALASKA HIGHWAY and does age affect safety?

ALASKA HIGHWAY was built in 1944, making it 82 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.