FHWA NBI 2024 Inspection record Public-domain dataset

ZIMOVIA HIGHWAY

Carrying ZIMOVIA HIGHWAY over PAT CREEK

MILE POINT 10.3, Wrangell City and, Alaska

Inventory: FHWA NBI 2024 · last ETL August 2026

FHWA NBI record, refreshed with each annual release.

Fair
25 t Inventory load rating Lower than 78% of rated Alaska bridges

ZIMOVIA HIGHWAY in Wrangell City and, Alaska sits above 22% of rated Alaska bridges on inventory load rating (25 t), while its 1973 build year is earlier than 98% of Wrangell City and's recorded-year cohort (58 bridges).

ZIMOVIA HIGHWAY in Wrangell City and, Alaska is rated Fair in the FHWA's 2024 National Bridge Inventory. Built in 1973, it carries 3 rated components on the inspecting agency's 0-9 scale, and its weakest reported component scores 5. The lowest applicable rating sets the federal condition category, so this Fair 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:1409

INTERSTATE-ERA · TIMBER · MULTI-SPAN · SUB-LED · LOCAL-ADT · STANDARD-LOAD · CAT-FAIR

  • INTERSTATE-ERA 1950–1979
  • TIMBER Wood or timber
  • MULTI-SPAN 3 spans
  • SUB-LED Substructure-led
  • LOCAL-ADT Local ADT
  • STANDARD-LOAD Standard load
  • CAT-FAIR Fair

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: ZIMOVIA HIGHWAY

The ZIMOVIA HIGHWAY bridge in Wrangell City and, Alaska carries ZIMOVIA HIGHWAY over PAT CREEK. It was built in 1973, making it 53 years old today. It was last reconstructed in 1993, extending its service life. The structure is built primarily of wood or timber and spans 3 sections, stretching 31.7 meters (104 feet) end to end. Daily traffic averages 230 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 8/9, superstructure at 7/9, substructure at 5/9. The weakest component sits in fair condition. All reported major components score above the Poor range.

How ZIMOVIA HIGHWAY compares

▼ 12.9
Load rating vs Alaska average (38.2 t; 1,679 of 1,685 rated)
58
Bridges in Wrangell City and · 4 in Poor condition

Age against the county: built in 1973, earlier than 57 of Wrangell City and's 58 bridges with a recorded construction year (98%), against a county median build year of 1985. Age is not a defect on its own, but it is the population from which future Poor ratings are drawn.

ZIMOVIA HIGHWAY 25.3 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).

ZIMOVIA HIGHWAY vs every rated Alaska bridge

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

25 Top 78% higher than 22% 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

Deck
8/9
Good (7–9)
Superstructure
7/9
Good (7–9)
Substructure
5/9
Fair (5–6)
Inventory Load Rating
25.3 t
NBI inventory level (metric tons)
Overall Condition
Fair

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

Reported 0–9 component ratings from the FHWA NBI. The highlighted component is the lowest reported input to this record’s current condition category; it is not a closure or live crossing-safety decision.

Wrangell City and inventory by recorded NBI category

Exclusive Good/Fair/Poor bands across all 58 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
1973
Last Reconstructed
1993
Material
Wood or Timber
Number of Spans
3
Structure Length
31.7 m (104 ft)
Deck Width
7.7 m (25 ft)
Owner
State Highway Agency
Avg Daily Traffic
230 vehicles/day
Structure Number
1409

Condition Analysis

  • The deck (driving surface) is in good condition (8/9), showing no significant deterioration.
  • At 7/9, the superstructure (beams and supports above the deck) is in good shape and shows no significant wear.
  • The substructure (piers and abutments) is in fair condition (5/9), with minor deterioration that may require routine maintenance.

How to read this record

This page shows what the last federal inspection recorded, not whether ZIMOVIA HIGHWAY 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 ZIMOVIA HIGHWAY against other structures in Wrangell City and 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 ZIMOVIA HIGHWAY?

ZIMOVIA HIGHWAY in Wrangell City and, Alaska has a deck rating of 8/9, superstructure rating of 7/9, and substructure rating of 5/9 on the FHWA's 0–9 scale.

How often is ZIMOVIA HIGHWAY inspected?

ZIMOVIA 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 230 vehicles per day.

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

FHWA retired that reported status beginning with the 2018 archive. ZIMOVIA HIGHWAY is currently shown as Fair condition from its component ratings; that category is not a live closure or safety decision.

What is the inventory load rating for ZIMOVIA HIGHWAY?

ZIMOVIA HIGHWAY has an NBI inventory load rating of 25.3 metric tons.

Who is responsible for maintaining ZIMOVIA HIGHWAY?

ZIMOVIA HIGHWAY is owned and maintained by State Highway Agency.

How old is ZIMOVIA HIGHWAY and does age affect safety?

ZIMOVIA HIGHWAY was built in 1973, making it 53 years old and last reconstructed in 1993.

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.