US Bridges

No Data Entered over No Data Entered

Poor

Petersburg Census Area, Alaska · Thomas Bay · Structure no. 100521000003408

Built
2006
19 years old
Condition
Poor
inspected August 2024
Type
Slab
Wood or Timber
Length
40 ft
1 main span
Daily traffic
—
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over No Data Entered is a wood or timber slab carrying No Data Entered over No Data Entered in Petersburg Census Area, Alaska. It was built in 2006, so it is 19 years old, younger than the Alaska average of 35.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

No traffic count is recorded. The structure is 40 ft (12.2 m) long and 18 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesNo Data Entered
CrossesNo Data Entered
LocationThomas Bay
RouteFederal Lands Road 6256
CountyPetersburg Census Area
StateAlaska
Coordinates56.92977, -132.77372
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.6 US tons
Inventory rating77.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length40 ft (12.2 m)
Longest span40 ft (12.2 m)
Deck width18 ft (5.5 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 No Data Entered over No Data Entered built?

It was built in 2006, making it 19 years old in 2025.

What condition is No Data Entered over No Data Entered in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does No Data Entered over No Data Entered carry?

No traffic count is recorded for this structure.

How long is No Data Entered over No Data Entered?

The structure is 40 ft (12.2 m) long with a longest span of 40 ft (12.2 m) and a deck 18 ft wide.

Who owns No Data Entered over No Data Entered?

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