Structure 100522000003100 · Wrangell City and County, AK

No Data Entered over Perm

Carries No Data Entered over Perm, Zarembo Island.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

40 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a slab bridge.

Built200224 years old
Length40.0 ft12.2 m
Daily traffic5counted 2006
Last inspectedAugust 2024every 24 months

Location

StateAlaska
CountyWrangell City and
LocationZarembo Island
CarriesNo Data Entered
CrossesPerm
Coordinates56.42353, -132.95470

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length40.0 ft (12.2 m)
Max Span40.0 ft (12.2 m)
Deck Width18.0 ft (5.5 m)
Deck Area67.1 sq m
Main Spans1
Year Built2002

Traffic

Avg Daily Traffic5 (2006)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical9 — Foundation above flood level
Structure Number100522000003100

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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