US Bridges

Irr:kng Cove Hbr over King Cove Lagoon

Fair

Aleutians East Borough, Alaska · King Cove · Structure no. 1303

Built
2002
23 years old
Condition
Fair
inspected September 2024
Type
Tee Beam
Prestressed Concrete
Length
276 ft
3 main spans
Daily traffic
150
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Irr:kng Cove Hbr over King Cove Lagoon is a prestressed concrete tee beam carrying Irr:kng Cove Hbr over King Cove Lagoon in Aleutians East Borough, Alaska. It was built in 2002, so it is 23 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 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 150 vehicles a day, roughly 4% of them trucks, projected to reach 200 by 2035. The structure is 276 ft (84.2 m) long and 35 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:kng Cove Hbr
CrossesKing Cove Lagoon
LocationKing Cove
RouteState Highway NSP00
StateAlaska
Coordinates55.06091, -162.32644
Functional classRural Minor Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating74.8 US tons
Inventory rating44.8 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans3
Design loadHL 93
Structure length276 ft (84.2 m)
Longest span17 ft (5.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2018)
Projected traffic200 by 2035
Trucks4%
Lanes on structure2
Traffic directionTwo-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:kng Cove Hbr over King Cove Lagoon built?

It was built in 2002, making it 23 years old in 2025.

What condition is Irr:kng Cove Hbr over King Cove Lagoon 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 September 2024.

How much traffic does Irr:kng Cove Hbr over King Cove Lagoon carry?

About 150 vehicles per day (2018 count), of which roughly 4% are trucks.

How long is Irr:kng Cove Hbr over King Cove Lagoon?

The structure is 276 ft (84.2 m) long with a longest span of 17 ft (5.2 m) and a deck 35 ft wide.

Who owns Irr:kng Cove Hbr over King Cove Lagoon?

It is owned by the City or Municipal Highway Agency.