US Bridges

Irr:kelty Field RD over Kelty Field

Good

Aleutians West Census Area, Alaska · Unalaska · Structure no. 4045

Built
1999
26 years old
Condition
Good
inspected September 2024
Type
Culvert
Steel
Length
25 ft
1 main span
Daily traffic
30
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Irr:kelty Field RD over Kelty Field is a steel culvert carrying Irr:kelty Field RD over Kelty Field in Aleutians West Census Area, Alaska. It was built in 1999, so it is 26 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 30 vehicles a day, roughly 1% of them trucks, projected to reach 50 by 2035. The structure is 25 ft (7.7 m) long. If it were closed, the detour would be 123.7 mi (199 km).

CarriesIrr:kelty Field RD
CrossesKelty Field
LocationUnalaska
RouteCity Street 0
StateAlaska
Coordinates53.85625, -166.50508
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating78.8 US tons
Inventory rating47.2 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans1
Design loadHS 20
Structure length25 ft (7.7 m)
Longest span25 ft (7.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic30 (2018)
Projected traffic50 by 2035
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
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:kelty Field RD over Kelty Field built?

It was built in 1999, making it 26 years old in 2025.

What condition is Irr:kelty Field RD over Kelty Field 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 September 2024.

How much traffic does Irr:kelty Field RD over Kelty Field carry?

About 30 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Irr:kelty Field RD over Kelty Field?

The structure is 25 ft (7.7 m) long with a longest span of 25 ft (7.7 m).

Who owns Irr:kelty Field RD over Kelty Field?

It is owned by the City or Municipal Highway Agency.