US Bridges

Irr:marine HWY RTE over Akutan City Dock

FairPosted for load

Aleutians East Borough, Alaska · Akutan · Structure no. 1946

Built
1992
33 years old
Condition
Fair
inspected August 2024
Type
Girder and Floorbeam System
Concrete
Length
103 ft
5 main spans
Daily traffic
10
2018 count
Owner
County
County Highway Agency

About this bridge

Irr:marine HWY RTE over Akutan City Dock is a concrete girder and floorbeam system carrying Irr:marine HWY RTE over Akutan City Dock in Aleutians East Borough, Alaska. It was built in 1992, so it is 33 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, roughly 1% of them trucks, projected to reach 12 by 2035. The structure is 103 ft (31.4 m) long and 40 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesIrr:marine HWY RTE
CrossesAkutan City Dock
LocationAkutan
RouteCity Street 0
CountyAleutians East Borough
StateAlaska
Coordinates54.13314, -165.77724
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

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.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load 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 rating38.5 US tons
Inventory rating17.3 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialConcrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length103 ft (31.4 m)
Longest span20 ft (6.1 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2018)
Projected traffic12 by 2035
Trucks1%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a toll road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Irr:marine HWY RTE over Akutan City Dock built?

It was built in 1992, making it 33 years old in 2025.

What condition is Irr:marine HWY RTE over Akutan City Dock in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Irr:marine HWY RTE over Akutan City Dock carry?

About 10 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Irr:marine HWY RTE over Akutan City Dock?

The structure is 103 ft (31.4 m) long with a longest span of 20 ft (6.1 m) and a deck 40 ft wide.

Who owns Irr:marine HWY RTE over Akutan City Dock?

It is owned by the County Highway Agency.