US Bridges

8050000-1.808 over Perm

Good

Ketchikan Gateway Borough, Alaska · Fire Cove · Structure no. 100520000001222

Built
1995
30 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
80 ft
1 main span
Daily traffic
—
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

8050000-1.808 over Perm is a steel stringer/multi-beam or girder carrying 8050000-1.808 over Perm in Ketchikan Gateway Borough, Alaska. It was built in 1995, so it is 30 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.

No traffic count is recorded. The structure is 80 ft (24.4 m) long and 16 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Carries8050000-1.808
CrossesPerm
LocationFire Cove
RouteFederal Lands Road 80500
StateAlaska
Coordinates55.71733, -131.45652
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.7 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length80 ft (24.4 m)
Longest span80 ft (24.4 m)
Deck width16 ft (4.9 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.2 mi (158 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerU.S. Forest Service
Maintained byU.S. Forest Service
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was 8050000-1.808 over Perm built?

It was built in 1995, making it 30 years old in 2025.

What condition is 8050000-1.808 over Perm 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 2024.

How much traffic does 8050000-1.808 over Perm carry?

No traffic count is recorded for this structure.

How long is 8050000-1.808 over Perm?

The structure is 80 ft (24.4 m) long with a longest span of 80 ft (24.4 m) and a deck 16 ft wide.

Who owns 8050000-1.808 over Perm?

It is owned by the U.S. Forest Service.