US Bridges

Irr:newhalen Road over North Fork Alexcy Creek

Fair

Lake and Peninsula Borough, Alaska · Iliamna · Structure no. 1354

Built
1985
40 years old, rebuilt 1995
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
61 ft
1 main span
Daily traffic
50
2018 count
Owner
State
State Highway Agency

About this bridge

Irr:newhalen Road over North Fork Alexcy Creek is a steel stringer/multi-beam or girder carrying Irr:newhalen Road over North Fork Alexcy Creek in Lake and Peninsula Borough, Alaska. It was built in 1985 and reconstructed in 1995, so it is 40 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 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 50 vehicles a day, roughly 21% of them trucks, projected to reach 60 by 2035. The structure is 61 ft (18.6 m) long and 24 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:newhalen Road
CrossesNorth Fork Alexcy Creek
LocationIliamna
RouteCounty Highway NSP00
StateAlaska
Coordinates59.87249, -154.84727
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating87.3 US tons
Inventory rating56.9 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length61 ft (18.6 m)
Longest span60 ft (18.3 m)
Deck width24 ft (7.3 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2018)
Projected traffic60 by 2035
Trucks21%
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:newhalen Road over North Fork Alexcy Creek built?

It was built in 1985, making it 40 years old in 2025. It was reconstructed in 1995.

What condition is Irr:newhalen Road over North Fork Alexcy Creek 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 July 2024.

How much traffic does Irr:newhalen Road over North Fork Alexcy Creek carry?

About 50 vehicles per day (2018 count), of which roughly 21% are trucks.

How long is Irr:newhalen Road over North Fork Alexcy Creek?

The structure is 61 ft (18.6 m) long with a longest span of 60 ft (18.3 m) and a deck 24 ft wide.

Who owns Irr:newhalen Road over North Fork Alexcy Creek?

It is owned by the State Highway Agency.