FHWA NBI 2024 Inspection record Public-domain dataset

8000030

Carrying 8000030 over PERM

WARD LAKE, Ketchikan Gateway, Alaska

Data updated May 2026

FHWA NBI record, refreshed with each annual release.

Good
37 t Inventory load rating

Bridge Snapshot: 8000030

The 8000030 bridge in Ketchikan Gateway, Alaska carries 8000030 over PERM. It was built in 1991, making it 35 years old today. The structure is built primarily of wood or timber and spans 1 section, stretching 11.3 meters (37 feet) end to end. Daily traffic averages 50 vehicles, placing it in the lower-traffic tier of Alaska bridges. It is owned and maintained by U.S. Forest Service.

The latest FHWA inspection records show a deck rating of 7/9, superstructure at 7/9, substructure at 7/9. The weakest component sits in good condition. No reported major component scores in the Poor range under the current federal condition thresholds. Its NBI inventory load rating is 36.6 metric tons.

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

How 8000030 compares

▲ 1.8
Load rating vs Alaska average (34.8 t)
Top 37%
Higher load rating than 63% of Alaska bridges
56
Bridges in Ketchikan Gateway · 7 in Poor condition
8000030 36.6 t
Alaska average 34.8 t

Live comparison across Alaska.

Historical Sufficiency Rating

PlainBridge-computed
80.1 / 100 - historical 80–100 band
Structural adequacy /55
55.0
Serviceability /30
18.5
Essentiality /15
14.6
Special reductions
−7.9

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 How the historical reference is calculated.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
7/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
7/9
Good (7–9)
Inventory Load Rating
36.6 t
NBI inventory level (metric tons)
Overall Condition
Good

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

Structural Details

Year Built
1991
Material
Wood or Timber
Number of Spans
1
Structure Length
11.3 m (37 ft)
Deck Width
5.5 m (18 ft)
Owner
U.S. Forest Service
Avg Daily Traffic
50 vehicles/day
Structure Number
100520000001124

Condition Analysis

  • The deck (driving surface) rates good at 7/9, with no significant deterioration on file.
  • The superstructure (beams and supports above the deck) rates good at 7/9, with no significant deterioration on file.
  • At 7/9, the substructure (piers and abutments) is in good shape and shows no significant wear.

How to read this record

This page shows what the last federal inspection recorded, not whether 8000030 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 8000030 against other structures in Ketchikan Gateway 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 8000030?

8000030 in Ketchikan Gateway, Alaska has a deck rating of 7/9, superstructure rating of 7/9, and substructure rating of 7/9 on the FHWA's 0–9 scale.

How often is 8000030 inspected?

8000030'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 50 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. 8000030 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 8000030?

8000030 has an NBI inventory load rating of 36.6 metric tons.

Who is responsible for maintaining 8000030?

8000030 is owned and maintained by U.S. Forest Service.

How old is 8000030 and does age affect safety?

8000030 was built in 1991, making it 35 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.