US Bridges

Irr:dock Street over Atka Dock Creek

Good

Aleutians West Census Area, Alaska · Atka Village · Structure no. 1953

Built
1997
28 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
89 ft
1 main span
Daily traffic
20
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Irr:dock Street over Atka Dock Creek is a wood or timber stringer/multi-beam or girder carrying Irr:dock Street over Atka Dock Creek in Aleutians West Census Area, Alaska. It was built in 1997, so it is 28 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 20 vehicles a day, roughly 1% of them trucks, projected to reach 30 by 2035. The structure is 89 ft (27.2 m) long and 19 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:dock Street
CrossesAtka Dock Creek
LocationAtka Village
RouteFederal Lands Road NSP00
StateAlaska
Coordinates52.23429, -174.18228
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating53.7 US tons
Inventory rating33.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 25 or greater
Structure length89 ft (27.2 m)
Longest span89 ft (27 m)
Deck width19 ft (5.9 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2018)
Projected traffic30 by 2035
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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:dock Street over Atka Dock Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Irr:dock Street over Atka Dock Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does Irr:dock Street over Atka Dock Creek carry?

About 20 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Irr:dock Street over Atka Dock Creek?

The structure is 89 ft (27.2 m) long with a longest span of 89 ft (27 m) and a deck 19 ft wide.

Who owns Irr:dock Street over Atka Dock Creek?

It is owned by the City or Municipal Highway Agency.