US Bridges

Logging Road over Stream

Fair

Petersburg Census Area, Alaska · Kupreanof Island Portage · Structure no. 100210000001212

Built
1980
45 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Multiple
Wood or Timber
Length
51 ft
1 main span
Daily traffic
—
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Logging Road over Stream is a wood or timber box beam or girders - multiple carrying Logging Road over Stream in Petersburg Census Area, Alaska. It was built in 1980, so it is 45 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.

No traffic count is recorded. The structure is 51 ft (15.5 m) long and 23 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

CarriesLogging Road
CrossesStream
LocationKupreanof Island Portage
RouteFederal Lands Road 6319
StateAlaska
Coordinates56.93468, -133.2273
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.4 US tons
Inventory rating47.5 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length51 ft (15.5 m)
Longest span49 ft (14.8 m)
Deck width23 ft (7.1 m)
Roadway width22 ft (6.7 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 Logging Road over Stream built?

It was built in 1980, making it 45 years old in 2025.

What condition is Logging Road over Stream 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 August 2023.

How much traffic does Logging Road over Stream carry?

No traffic count is recorded for this structure.

How long is Logging Road over Stream?

The structure is 51 ft (15.5 m) long with a longest span of 49 ft (14.8 m) and a deck 23 ft wide.

Who owns Logging Road over Stream?

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