Structure 100320000001385 · Hoonah-Angoon County, AK

Logging Road over Stream

Carries Logging Road over Stream, Freshwater.

Overall conditionFair

Set by its lowest-rated component: Superstructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT60 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 5/9 · sets the ratingSubstructure 7/9

60 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 multi-beam bridge.

Built1982rebuilt 2009
Length60.0 ft18.3 m
Daily traffic10counted 2006
Last inspectedAugust 2023every 24 months

Location

StateAlaska
CountyHoonah-Angoon
LocationFreshwater
CarriesLogging Road
CrossesStream
Coordinates57.96220, -135.31620

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length60.0 ft (18.3 m)
Max Span58.4 ft (17.8 m)
Deck Width18.0 ft (5.5 m)
Deck Area100.7 sq m
Main Spans1
Year Built1982 (reconstructed 2009)

Traffic

Avg Daily Traffic10 (2006)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number100320000001385

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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