US Bridges

Summers Bay Road over Summers Bay Creek

GoodPosted for load

Aleutians West Census Area, Alaska · 6.4 KM North of Unalaska · Structure no. 0000E01510T0020

Built
2014
11 years old
Condition
Good
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
71 ft
1 main span
Daily traffic
20
2023 count
Owner
Tribal
Indian Tribal Government

About this bridge

Summers Bay Road over Summers Bay Creek is a steel stringer/multi-beam or girder carrying Summers Bay Road over Summers Bay Creek in Aleutians West Census Area, Alaska. It was built in 2014, so it is 11 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. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 15% of them trucks, projected to reach 2,043 by 500. The structure is 71 ft (21.7 m) long and 26 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

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CarriesSummers Bay Road
CrossesSummers Bay Creek
Location6.4 KM North of Unalaska
RouteFederal Lands Road 0
CountyAleutians West Census Area
StateAlaska
Coordinates53.89669, -166.45914
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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating54.7 US tons
Inventory rating42 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length71 ft (21.7 m)
Longest span66 ft (20.2 m)
Deck width26 ft (8 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck0 ft (0 m)

Traffic and service

Average daily traffic20 (2023)
Projected traffic2,043 by 500
Trucks15%
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

OwnerIndian Tribal Government
Maintained byIndian Tribal Government
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 Summers Bay Road over Summers Bay Creek built?

It was built in 2014, making it 11 years old in 2025.

What condition is Summers Bay Road over Summers Bay Creek 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 August 2023.

How much traffic does Summers Bay Road over Summers Bay Creek carry?

About 20 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is Summers Bay Road over Summers Bay Creek?

The structure is 71 ft (21.7 m) long with a longest span of 66 ft (20.2 m) and a deck 26 ft wide.

Who owns Summers Bay Road over Summers Bay Creek?

It is owned by the Indian Tribal Government.