US Bridges

Irr:nome-Council over Solomon River

Fair

Nome Census Area, Alaska · Mile Point 41.0 · Structure no. 0356

Built
1977
48 years old, rebuilt 1992
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
181 ft
3 main spans
Daily traffic
160
2020 count
Owner
State
State Highway Agency

About this bridge

Irr:nome-Council over Solomon River is a wood or timber stringer/multi-beam or girder carrying Irr:nome-Council over Solomon River in Nome Census Area, Alaska. It was built in 1977 and reconstructed in 1992, so it is 48 years old, older 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.

It carries about 160 vehicles a day, roughly 8% of them trucks, projected to reach 490 by 2039. The structure is 181 ft (55.1 m) long and 25 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:nome-Council
CrossesSolomon River
LocationMile Point 41.0
RouteState Highway 130
StateAlaska
Coordinates64.65538, -164.31838
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.5 US tons
Inventory rating42.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadHS 20 + Mod
Structure length181 ft (55.1 m)
Longest span60 ft (18.3 m)
Deck width25 ft (7.6 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2020)
Projected traffic490 by 2039
Trucks8%
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Irr:nome-Council over Solomon River built?

It was built in 1977, making it 48 years old in 2025. It was reconstructed in 1992.

What condition is Irr:nome-Council over Solomon River 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:nome-Council over Solomon River carry?

About 160 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Irr:nome-Council over Solomon River?

The structure is 181 ft (55.1 m) long with a longest span of 60 ft (18.3 m) and a deck 25 ft wide.

Who owns Irr:nome-Council over Solomon River?

It is owned by the State Highway Agency.