US Bridges

Kake Access - Usfs over Portage Creek

Fair

Petersburg Census Area, Alaska · Mile Point 0.0 · Structure no. 2385

Built
1981
44 years old
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
81 ft
1 main span
Daily traffic
10
2020 count
Owner
State
State Highway Agency

About this bridge

Kake Access - Usfs over Portage Creek is a steel stringer/multi-beam or girder carrying Kake Access - Usfs over Portage Creek in Petersburg 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 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 10 vehicles a day, roughly 1% of them trucks, projected to reach 20 by 2040. The structure is 81 ft (24.6 m) long and 18 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

Location

Open in Google Maps
CarriesKake Access - Usfs
CrossesPortage Creek
LocationMile Point 0.0
RouteState Highway 0
CountyPetersburg Census Area
StateAlaska
Coordinates56.92761, -133.15271
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.5 US tons
Inventory rating45 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length81 ft (24.6 m)
Longest span78 ft (23.9 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2020)
Projected traffic20 by 2040
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 Kake Access - Usfs over Portage Creek built?

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

What condition is Kake Access - Usfs over Portage 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 May 2023.

How much traffic does Kake Access - Usfs over Portage Creek carry?

About 10 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Kake Access - Usfs over Portage Creek?

The structure is 81 ft (24.6 m) long with a longest span of 78 ft (23.9 m) and a deck 18 ft wide.

Who owns Kake Access - Usfs over Portage Creek?

It is owned by the State Highway Agency.