US Bridges

Irr:suravak Road over Wood River

Good

Dillingham Census Area, Alaska · Aleknagik · Structure no. 1902

Built
2015
10 years old
Condition
Good
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
440 ft
3 main spans
Daily traffic
340
2018 count
Owner
State
State Highway Agency

About this bridge

Irr:suravak Road over Wood River is a steel continuous stringer/multi-beam or girder carrying Irr:suravak Road over Wood River in Dillingham Census Area, Alaska. It was built in 2015, so it is 10 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 340 vehicles a day, roughly 2% of them trucks, projected to reach 603 by 2035. The structure is 440 ft (134.1 m) long and 33 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:suravak Road
CrossesWood River
LocationAleknagik
RouteState Highway 0
StateAlaska
Coordinates59.27416, -158.59076
Functional classRural Minor Collector

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.
Superstructure9 ExcellentNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating94.5 US tons
Inventory rating42.5 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length440 ft (134.1 m)
Longest span180 ft (54.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic340 (2018)
Projected traffic603 by 2035
Trucks2%
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

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Irr:suravak Road over Wood River built?

It was built in 2015, making it 10 years old in 2025.

What condition is Irr:suravak Road over Wood River 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 July 2024.

How much traffic does Irr:suravak Road over Wood River carry?

About 340 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is Irr:suravak Road over Wood River?

The structure is 440 ft (134.1 m) long with a longest span of 180 ft (54.9 m) and a deck 33 ft wide.

Who owns Irr:suravak Road over Wood River?

It is owned by the State Highway Agency.