US Bridges

2100000-4.6 over No Data Entered

Good

Prince of Wales-Hyder Census Area, Alaska · 12 Mile · Structure no. 100551000003323

Built
2005
20 years old
Condition
Good
inspected May 2024
Type
Slab
Wood or Timber
Length
33 ft
1 main span
Daily traffic
10
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

2100000-4.6 over No Data Entered is a wood or timber slab carrying 2100000-4.6 over No Data Entered in Prince of Wales-Hyder Census Area, Alaska. It was built in 2005, so it is 20 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.

It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 33 ft (10.2 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Carries2100000-4.6
CrossesNo Data Entered
Location12 Mile
RouteFederal Lands Road 21000
StateAlaska
Coordinates55.337, -132.75204
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 protection8 Very GoodNo problems noted.
Last inspectionMay 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 rating93.9 US tons
Inventory rating72.5 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length33 ft (10.2 m)
Longest span31 ft (9.4 m)
Deck width18 ft (5.5 m)
Roadway width16 ft (4.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2006)
Projected traffic15 by 2045
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 2100000-4.6 over No Data Entered built?

It was built in 2005, making it 20 years old in 2025.

What condition is 2100000-4.6 over No Data Entered 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 May 2024.

How much traffic does 2100000-4.6 over No Data Entered carry?

About 10 vehicles per day (2006 count).

How long is 2100000-4.6 over No Data Entered?

The structure is 33 ft (10.2 m) long with a longest span of 31 ft (9.4 m) and a deck 18 ft wide.

Who owns 2100000-4.6 over No Data Entered?

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