County profile · official public datasets

Wrangell City and County, AK

58 public highway bridges tracked in the FHWA National Bridge Inventory: 44.8% rated Good, 48.3% Fair, 6.9% Poor.

58
Public bridges
44.8%
Good condition
6.9%
Poor condition

The verdict

According to the Federal Highway Administration's 2024 National Bridge Inventory.

Wrangell City and County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.

14th
of 27 on Poor share
6.9%
Poor-condition share
58
public highway bridges
1990
avg year built

Poor is an FHWA condition category from the lowest applicable component rating (4 or below), not a live crossing-safety or closure decision. Rankings cover counties with at least five public highway bridges.

Wrangell City and County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Wrangell City and County ranks #14 of 27 Alaska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 6.9%). Wrangell City and County, Alaska contains 58 public highway bridges. Roughly 44.8% are rated “Good,” 48.3% “Fair,” and 6.9% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

Total bridges

58

Public highway bridges in Wrangell City and County

Good condition

44.8%

26 of 58 rated 7-9

Fair condition

48.3%

28 of 58 rated 5-6

Poor condition

6.9%

4 of 58 rated 4 or below

In-state Poor-share rank

#14 of 27

Among Alaska counties with 5+ bridges, lower share ranks better

Condition distribution

Share of 58 NBI-tracked bridges by lowest applicable component rating.

Good
44.8% (26)
Fair
48.3% (28)
Poor
6.9% (4)

Wrangell City and County's Poor-condition bridges carry 5 vehicle crossings a day

That is 0.6% of the county's reported daily bridge traffic on 3.1% of its bridges: Poor-condition structures carry less traffic than their share of the inventory. Each Poor bridge averages 5 crossings a day against 26 for a Good-condition one. A Poor rating is a condition category, not a closure or a live safety judgement; it means the lowest applicable component rating is 4 or below.

Computed over the 32 of 58 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1.7% of Wrangell City and County's bridges have passed the 50-year mark

1 of the 58 bridges with a recorded construction year were built in 1974 or earlier. Age alone is not a defect: a well-maintained older bridge can rate Good, and 44.8% of this county's inventory does. Even so, this older cohort is the population from which future Poor ratings are drawn, which is why the age profile below matters alongside the condition split above.

Cutoff derives from the 2024 release year minus a 50-year design life. Source: FHWA National Bridge Inventory, 2024 release.

One structure carries 100% of the county's Poor-condition bridge traffic

FDR 6590 over STREAM - MOD, built 1980, carries 5 vehicles a day, the most of any Poor-rated structure here. The county's Poor-condition exposure is concentrated rather than evenly spread, so the 4-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 5 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

When Wrangell City and County's bridges were built

58 bridges with a recorded construction year, grouped by decade

bridges

What this shows Construction peaked in the 1980s, when 36 of the county's bridges still in the inventory were built, which is 62.1% of those with a recorded year. That cohort is now 35 to 44 years old in the 2024 inventory. Its average build year (1990) matches the Alaska average (1989).

Source FHWA National Bridge Inventory (year built) As of 2024 NBI release

How Wrangell City and County compares with Alaska's closest counties by inventory size

The 5 Alaska counties nearest Wrangell City and County in number of bridges, with their condition splits. Its 6.9% Poor share is the 4th-lowest of these 6. Its average build year of 1990 against a peer-group mean of 1983 is 7 years newer.

Showing the 5 closest of 26 Alaska counties eligible for comparison.

Bridge inventory size and condition shares for Wrangell City and County and the 5 Alaska counties closest to it in inventory size
County Bridges Poor
Chugach County 66 7.6%
Southeast Fairbanks County 64 12.5%
Wrangell City and County (this page) 58 6.9%
Copper River County 52 5.8%
Juneau City and County 47 2.1%
Sitka City and County 37 2.7%

Each share is of that county's own total tracked bridges; peers are the counties with 5 or more bridges whose inventory size is closest to Wrangell City and County's. Source: FHWA National Bridge Inventory, 2024 release.

Nationwide counties with similar inventory size or average build year

Two NBI-derived peer sets for Wrangell City and County, both outside Alaska so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AK (58 bridges here).

Similar average build year

Nearest mean year-built outside AK (1990 here).

Source: FHWA National Bridge Inventory, 2024 release. Peers floor at 10 bridges so stub inventories cannot own the match.

All 58 Good 26 Fair 28 Poor 4

Good-condition bridges (26)

NO DATA ENTERED

Good

Over: MOD

ZAREMBO ISLAND, Wrangell City and, AK

Built 1983 Load: 19.8 t

6590

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 1983 Load: 23.7 t

NO DATA ENTERED

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 2013 Load: 30.1 t ADT: 5

FDR 6593

Good

Over: STREAM - HAMILTON

ZAREMBO ISLAND, Wrangell City and, AK

Built 1994 Load: 31.8 t

FDR 6545

Good

Over: STREAM

ETOLIN ISLAND, Wrangell City and, AK

Built 1993 Load: 31.8 t

NO DATA ENTERED

Good

Over: NO DATA ENTERED

WRANGELL ISLAND, Wrangell City and, AK

Built 2004 Load: 32.7 t ADT: 10

NO DATA ENTERED

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 2004 Load: 32.7 t ADT: 5

NO DATA ENTERED

Good

Over: NO DATA ENTERED

ZAREMBO ISLAND, Wrangell City and, AK

Built 2004 Load: 32.7 t ADT: 5

FDR 6590

Good

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1988 Load: 34.0 t ADT: 5

MCCORMACK CR RD

Good

Over: MCCORMACK CREEK

MILE POINT 12.6 WRANGELL, Wrangell City and, AK

Built 1998 Load: 40.4 t ADT: 230

FDR 6590

Good

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1985 Load: 42.1 t ADT: 5

FDR 6265

Good

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1989 Load: 43.4 t ADT: 50

FDR 6273

Good

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1986 Load: 46.3 t ADT: 10

FDR 6270

Good

Over: STREAM -PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 46.7 t ADT: 10

LOGGING ROAD

Good

Over: STREAM

WRANGELL ISLAND, Wrangell City and, AK

Built 1988 Load: 48.0 t ADT: 50

FDR 6585

Good

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1986 Load: 49.6 t

FDR 6270

Good

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 52.5 t ADT: 10

FDR 6270

Good

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 52.5 t ADT: 10

FDR 6590

Good

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1992 Load: 53.8 t ADT: 5

FDR 6590

Good

Over: STREAM - PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 1992 Load: 54.4 t ADT: 5

FDR 3270

Good

Over: STREAM - PERM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 55.7 t ADT: 10

FDR 6265

Good

Over: STREAM

WRANGELL ISLAND, Wrangell City and, AK

Built 1982 Load: 56.4 t ADT: 50

FDR 6542

Good

Over: STREAM - GLUELAM SLAB

ETOLIN ISLAND, Wrangell City and, AK

Built 2000 Load: 61.2 t

NO DATA ENTERED

Good

Over: PERM

ZAREMBO ISLAND, Wrangell City and, AK

Built 2002 Load: 70.0 t ADT: 5

NO DATA ENTERED

Good

Over: NO DATA ENTERED

ETOLIN ISLAND, Wrangell City and, AK

Built 2010 Load: 70.0 t

NO DATA ENTERED

Good

Over: NO DATA ENTERED

KUIU ISLAND, Wrangell City and, AK

Built 2014 Load: 70.6 t ADT: 5

Read our methodology - how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridges 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. NBI condition categories reflect the latest reported inventory record, not a live safety, closure, or travel decision.