Total bridges
6
Public highway bridges in Skagway County
County profile · official public datasets
Skagway County, AK
6 public highway bridges tracked in the FHWA National Bridge Inventory: 0% rated Good, 83.3% Fair, 16.7% Poor.
- 6
- Public bridges
- 0%
- Good condition
- 16.7%
- Poor condition
The verdict
According to the Federal Highway Administration's 2024 National Bridge Inventory.
Skagway County posts a higher-than-median Poor-condition share among rated counties in the state across rated county bridge inventory.
- 27th
- of 27 on Poor share
- 16.7%
- Poor-condition share
- 6
- public highway bridges
- 1985
- 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.
Skagway County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Skagway County ranks #27 of 27 Alaska counties with at least 5 public highway bridges on Poor-condition share (lower share ranks better; currently 16.7%). Skagway County, Alaska contains 6 public highway bridges. Roughly 0% are rated “Good,” 83.3% “Fair,” and 16.7% “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.
Good condition
0%
0 of 6 rated 7-9
Fair condition
83.3%
5 of 6 rated 5-6
Poor condition
16.7%
1 of 6 rated 4 or below
In-state Poor-share rank
#27 of 27
Among Alaska counties with 5+ bridges, lower share ranks better
Condition distribution
Share of 6 NBI-tracked bridges by lowest applicable component rating.
Good 0% (0)
Fair 83.3% (5)
Poor 16.7% (1)
Skagway County's Poor-condition bridges carry 947 vehicle crossings a day
That is 31.1% of the county's reported daily bridge traffic on 16.7% of its bridges: Poor-condition structures carry more traffic than their share of the inventory. 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 6 of 6 bridges in this county that report an average daily traffic count. Source: FHWA National Bridge Inventory, 2024 release.
33.3% of Skagway County's bridges have passed the 50-year mark
2 of the 6 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 0% 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
MARINE HWY ROUTE over SKAGWAY FERRY TERMINAL, built 1980, carries 947 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 1-bridge count understates how much of the daily burden sits on a single crossing.
Share is of the 947 daily crossings on Poor-rated bridges that report a traffic count. Source: FHWA National Bridge Inventory, 2024 release.
When Skagway County's bridges were built
6 bridges with a recorded construction year, grouped by decade
- 1940s
1940–1949
1 bridges
- 1970s
1970–1979
1 bridges
- 1980s
1980–1989
1 bridges
- 1990s
1990–1999
2 bridges
- 2010s
2010–2019
1 bridges
What this shows Construction peaked in the 1990s, when 2 of the county's bridges still in the inventory were built, which is 33.3% of those with a recorded year. That cohort is now 25 to 34 years old in the 2024 inventory. Its average build year (1985) matches the Alaska average (1989).
How Skagway County compares with Alaska's closest counties by inventory size
The 5 Alaska counties nearest Skagway County in number of bridges, with their condition splits. Its 16.7% Poor share is the 6th-lowest of these 6. Its average build year of 1985 against a peer-group mean of 1993 is 8 years older.
Showing the 5 closest of 26 Alaska counties eligible for comparison.
| County | Bridges | Good | Fair | Poor | Avg. built |
|---|---|---|---|---|---|
| Yakutat City and County | 15 | 46.7% | 40% | 13.3% | 1978 |
| Bethel County | 13 | 53.8% | 38.5% | 7.7% | 1997 |
| Lake and Peninsula County | 10 | 50% | 40% | 10% | 1988 |
| Aleutians West County | 8 | 75% | 25% | 0% | 2003 |
| Northwest Arctic County | 7 | 28.6% | 71.4% | 0% | 2000 |
| Skagway County (this page) | 6 | 0% | 83.3% | 16.7% | 1985 |
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 Skagway County's. Source: FHWA National Bridge Inventory, 2024 release.
All bridges (6)
DYEA RD EXTENSION
FairOver: WEST CREEK
MILE POINT 8.4, Skagway, AK
Built 1992 Load: 12.7 t ADT: 238
KLONDIKE HIGHWAY
FairOver: SKAGWAY RIVER
MILE POINT 1.8, Skagway, AK
Built 1974 Load: 29.4 t ADT: 1,200
DYEA ROAD
FairOver: TAIYA RIVER
MILE POINT 7.1, Skagway, AK
Built 1948 Load: 31.5 t ADT: 238
DYEA ROAD
FairOver: NELSON SLOUGH
MILE POINT 9.0, Skagway, AK
Built 1998 Load: 37.5 t ADT: 10
KLONDIKE HIGHWAY
FairOver: CAPTAIN WM MOORE CREEK
MILE POINT 11.2, Skagway, AK
Built 2019 Load: 99.9 t ADT: 410
MARINE HWY ROUTE
PoorOver: SKAGWAY FERRY TERMINAL
SKAGWAY, Skagway, AK
Built 1980 Load: 25.1 t ADT: 947
Read our methodology - how this data is sourced, computed, and verified.
Related
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.