US Bridges

Irr:airport RD over Crooked Creek

Fair

Bethel Census Area, Alaska · Mile Point 0.4 · Structure no. 1675

Built
1981
44 years old
Condition
Fair
inspected July 2024
Type
Truss - Thru
Steel
Length
154 ft
1 main span
Daily traffic
15
2018 count
Owner
State
State Highway Agency

About this bridge

Irr:airport RD over Crooked Creek is a steel truss - thru carrying Irr:airport RD over Crooked Creek in Bethel Census Area, Alaska. It was built in 1981, so it is 44 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 15 vehicles a day, roughly 1% of them trucks, projected to reach 30 by 2035. The structure is 154 ft (46.9 m) long and 15 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesIrr:airport RD
CrossesCrooked Creek
LocationMile Point 0.4
CountyBethel Census Area
StateAlaska
Coordinates61.87087, -158.12274
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating49.1 US tons
Inventory rating36 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckSteel plate
Main spans1
Design loadUnknown
Structure length154 ft (46.9 m)
Longest span148 ft (45 m)
Deck width15 ft (4.6 m)
Roadway width13 ft (4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (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

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:airport RD over Crooked Creek built?

It was built in 1981, making it 44 years old in 2025.

What condition is Irr:airport RD over Crooked 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:airport RD over Crooked Creek carry?

About 15 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Irr:airport RD over Crooked Creek?

The structure is 154 ft (46.9 m) long with a longest span of 148 ft (45 m) and a deck 15 ft wide.

Who owns Irr:airport RD over Crooked Creek?

It is owned by the State Highway Agency.