US Bridges

Big Salt Lake Road over Little Salt Creek

Good

Prince of Wales-Hyder Census Area, Alaska · Mile Point 5.9 · Structure no. 1360

Built
1998
27 years old
Condition
Good
inspected July 2023
Type
Tee Beam
Prestressed Concrete
Length
102 ft
1 main span
Daily traffic
310
2020 count
Owner
State
State Highway Agency

About this bridge

Big Salt Lake Road over Little Salt Creek is a prestressed concrete tee beam carrying Big Salt Lake Road over Little Salt Creek in Prince of Wales-Hyder Census Area, Alaska. It was built in 1998, so it is 27 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 310 vehicles a day, roughly 28% of them trucks, projected to reach 380 by 2039. The structure is 102 ft (31.1 m) long and 32 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesBig Salt Lake Road
CrossesLittle Salt Creek
LocationMile Point 5.9
RouteState Highway 929
StateAlaska
Coordinates55.5893, -133.0318
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.8 US tons
Inventory rating55 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length102 ft (31.1 m)
Longest span99 ft (30.2 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic310 (2020)
Projected traffic380 by 2039
Trucks28%
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 Big Salt Lake Road over Little Salt Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Big Salt Lake Road over Little Salt 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 July 2023.

How much traffic does Big Salt Lake Road over Little Salt Creek carry?

About 310 vehicles per day (2020 count), of which roughly 28% are trucks.

How long is Big Salt Lake Road over Little Salt Creek?

The structure is 102 ft (31.1 m) long with a longest span of 99 ft (30.2 m) and a deck 32 ft wide.

Who owns Big Salt Lake Road over Little Salt Creek?

It is owned by the State Highway Agency.