US Bridges

Marine HWY Route over Skagway Ferry Terminal

Poor

Skagway Municipality, Alaska · Skagway · Structure no. 0805

Built
1980
45 years old, rebuilt 1994
Condition
Poor
inspected May 2023
Type
Orthotropic
Steel
Length
175 ft
1 main span
Daily traffic
947
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Marine HWY Route over Skagway Ferry Terminal is a steel orthotropic carrying Marine HWY Route over Skagway Ferry Terminal in Skagway Municipality, Alaska. It was built in 1980 and reconstructed in 1994, so it is 45 years old, older than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 947 vehicles a day, roughly 21% of them trucks, projected to reach 1,200 by 2035. The structure is 175 ft (53.3 m) long and 17 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesMarine HWY Route
CrossesSkagway Ferry Terminal
LocationSkagway
RouteState Highway 97
StateAlaska
Coordinates59.44919, -135.32479
Functional classRural Principal Arterial - Other

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.3 US tons
Inventory rating27.7 US tons

Structure

Structure typeOrthotropic
MaterialSteel
DeckSteel plate
Main spans1
Design loadHS 20
Structure length175 ft (53.3 m)
Longest span140 ft (42.7 m)
Deck width17 ft (5.2 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic947 (2018)
Projected traffic1,200 by 2035
Trucks21%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a toll road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Marine HWY Route over Skagway Ferry Terminal built?

It was built in 1980, making it 45 years old in 2025. It was reconstructed in 1994.

What condition is Marine HWY Route over Skagway Ferry Terminal in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does Marine HWY Route over Skagway Ferry Terminal carry?

About 947 vehicles per day (2018 count), of which roughly 21% are trucks.

How long is Marine HWY Route over Skagway Ferry Terminal?

The structure is 175 ft (53.3 m) long with a longest span of 140 ft (42.7 m) and a deck 17 ft wide.

Who owns Marine HWY Route over Skagway Ferry Terminal?

It is owned by the City or Municipal Highway Agency and maintained by the State Highway Agency.