US Bridges

2000000-12.651 over Perm

Good

Prince of Wales-Hyder Census Area, Alaska · Naukati · Structure no. 100540000001007

Built
1978
47 years old, rebuilt 1990
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Multiple
Steel
Length
161 ft
2 main spans
Daily traffic
50
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

2000000-12.651 over Perm is a steel box beam or girders - multiple carrying 2000000-12.651 over Perm in Prince of Wales-Hyder Census Area, Alaska. It was built in 1978 and reconstructed in 1990, so it is 47 years old, older 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 50 vehicles a day, projected to reach 110 by 2013. The structure is 161 ft (49.1 m) long and 29 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Carries2000000-12.651
CrossesPerm
LocationNaukati
RouteState Highway 0FH43
StateAlaska
Coordinates55.95017, -133.23468
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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.2 US tons
Inventory rating47.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans2
Design loadOther
Structure length161 ft (49.1 m)
Longest span78 ft (23.9 m)
Deck width29 ft (8.9 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2006)
Projected traffic110 by 2013
Trucks—
Lanes on structure2
Traffic directionTwo-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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$360,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 2000000-12.651 over Perm built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 1990.

What condition is 2000000-12.651 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 July 2023.

How much traffic does 2000000-12.651 over Perm carry?

About 50 vehicles per day (2006 count).

How long is 2000000-12.651 over Perm?

The structure is 161 ft (49.1 m) long with a longest span of 78 ft (23.9 m) and a deck 29 ft wide.

Who owns 2000000-12.651 over Perm?

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