US Bridges

Logging Road over Stream 1991

Fair

Sitka City and Borough, Alaska · Corner Bay · Structure no. 100320000001051

Built
1991
34 years old, rebuilt 2009
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
60 ft
1 main span
Daily traffic
—
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

Logging Road over Stream 1991 is a steel stringer/multi-beam or girder carrying Logging Road over Stream 1991 in Sitka City and Borough, Alaska. It was built in 1991 and reconstructed in 2009, so it is 34 years old, younger 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 5 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 60 ft (18.3 m) long and 17 ft wide. If it were closed, the detour would be 98.2 mi (158 km).

Location

Open in Google Maps
CarriesLogging Road
CrossesStream 1991
LocationCorner Bay
RouteFederal Lands Road 7520
CountySitka City and Borough
StateAlaska
Coordinates57.70066, -134.92977
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
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 rating28.2 US tons
Inventory rating21.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadOther
Structure length60 ft (18.3 m)
Longest span58 ft (17.8 m)
Deck width17 ft (5.1 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 Logging Road over Stream 1991 built?

It was built in 1991, making it 34 years old in 2025. It was reconstructed in 2009.

What condition is Logging Road over Stream 1991 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 July 2024.

How much traffic does Logging Road over Stream 1991 carry?

No traffic count is recorded for this structure.

How long is Logging Road over Stream 1991?

The structure is 60 ft (18.3 m) long with a longest span of 58 ft (17.8 m) and a deck 17 ft wide.

Who owns Logging Road over Stream 1991?

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