US Bridges

No Data Entered over No Data Entered

Fair

Petersburg Census Area, Alaska · Mitkof Island · Structure no. 100521000003473

Built
2005
20 years old
Condition
Fair
inspected August 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
49 ft
1 main span
Daily traffic
10
2006 count
Owner
Federal
U.S. Forest Service

About this bridge

No Data Entered over No Data Entered is a wood or timber stringer/multi-beam or girder carrying No Data Entered over No Data Entered in Petersburg 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 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.

It carries about 10 vehicles a day, projected to reach 15 by 2045. The structure is 49 ft (14.9 m) long and 20 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
LocationMitkof Island
RouteFederal Lands Road 6232
CountyPetersburg Census Area
StateAlaska
Coordinates56.65809, -132.72444
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.9 US tons
Inventory rating18.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadOther
Structure length49 ft (14.9 m)
Longest span49 ft (14.9 m)
Deck width20 ft (6.2 m)
Roadway width15 ft (4.6 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 proposedOther structural work, including hydraulic replacements
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 2005, making it 20 years old in 2025.

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

About 10 vehicles per day (2006 count).

How long is No Data Entered over No Data Entered?

The structure is 49 ft (14.9 m) long with a longest span of 49 ft (14.9 m) and a deck 20 ft wide.

Who owns No Data Entered over No Data Entered?

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