County profile · official public datasets

Hoonah-Angoon County, AK

125 public highway bridges tracked in the FHWA National Bridge Inventory: 49.6% rated Good, 35.2% Fair, 15.2% Poor.

125
Public bridges: 49.6%
Good condition: 15.2%
Poor condition

The verdict

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

Hoonah-Angoon County pairs a higher-than-median Poor-condition share among rated counties in the state with a newer average build year than the state inventory.

26th
of 27 on Poor share: 15.2%
Poor-condition share: 125
public highway bridges: 1994
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.

Hoonah-Angoon County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Hoonah-Angoon County ranks #26 of 27 Alaska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 15.2%). Hoonah-Angoon County, Alaska contains 125 public highway bridges. Roughly 49.6% are rated “Good,” 35.2% “Fair,” and 15.2% “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

125

Public highway bridges in Hoonah-Angoon County

Good condition

49.6%

62 of 125 rated 7-9

Fair condition

35.2%

44 of 125 rated 5-6

Poor condition

15.2%

19 of 125 rated 4 or below

In-state Poor-share rank

#26 of 27

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

Condition distribution

Share of 125 NBI-tracked bridges by lowest applicable component rating.

Good

49.6% (62)

Fair

35.2% (44)

Poor

15.2% (19)

Hoonah-Angoon County's Poor-condition bridges carry 1,030 vehicle crossings a day

That is 35% of the county's reported daily bridge traffic on 3.7% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. Each Poor bridge averages 515 crossings a day against 46 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 54 of 125 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.

0.8% of Hoonah-Angoon County's bridges have passed the 50-year mark

1 of the 125 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 49.6% 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 99% of the county's Poor-condition bridge traffic

GUSTAVUS AIRPORT R over SALMON RIVER, built 1976, carries 1,020 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 19-bridge count understates how much of the daily burden sits on a single crossing.

Share is of the 1,030 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.

1930s

1
1970s

8
1980s

32
1990s

45
2000s

20
2010s

17
2020s

2

What this shows Construction peaked in the 1990s, when 45 of the county's bridges still in the inventory were built, which is 36% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year is 1994, 5 years newer than the Alaska average of 1989.

How Hoonah-Angoon County compares with Alaska's closest counties by inventory size

The 5 Alaska counties nearest Hoonah-Angoon County in number of bridges, with their condition splits. Its 15.2% Poor share is the 6th-lowest of these 6. Its average build year of 1994 against a peer-group mean of 1991 is in line with the group.

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

Bridge inventory size and condition shares for Hoonah-Angoon County and the 5 Alaska counties closest to it in inventory size
County	Bridges	Good	Fair	Poor	Avg. built
Petersburg County	141	44.7%	47.5%	7.8%	1992
Anchorage County	134	49.3%	50%	0.7%	1992
Hoonah-Angoon County (this page)	125	49.6%	35.2%	15.2%	1994
Matanuska-Susitna County	120	50.8%	43.3%	5.8%	1993
Fairbanks North Star County	111	50.5%	42.3%	7.2%	1988
Kenai Peninsula County	103	35.9%	50.5%	13.6%	1988

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 Hoonah-Angoon 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 Hoonah-Angoon County, both outside Alaska so the neighborhoods are not the same-state size table above.

Similar inventory size

Nearest county inventories outside AK (125 bridges here).

Tuolumne County, CA · 125 bridges
Worth County, GA · 125 bridges
Stone County, MS · 125 bridges
Carroll County, OH · 125 bridges

Similar average build year

Nearest mean year-built outside AK (1994 here).

Denton County, TX · avg 1994 · 991 bridges
St. Charles County, MO · avg 1994 · 417 bridges
Rock County, WI · avg 1994 · 304 bridges
Pitt County, NC · avg 1994 · 228 bridges

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

All 125 Good 62 Fair 44 Poor 19

All bridges (125)

Sort:

Hoonah-Angoon County Bridge Snapshot

Condition distribution

Hoonah-Angoon County's Poor-condition bridges carry 1,030 vehicle crossings a day

0.8% of Hoonah-Angoon County's bridges have passed the 50-year mark

One structure carries 99% of the county's Poor-condition bridge traffic

How Hoonah-Angoon County compares with Alaska's closest counties by inventory size

Nationwide counties with similar inventory size or average build year

Similar inventory size

Similar average build year

All bridges (125)

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