Structure 944 · County 063 County, AK

Mineral Creek Road over Mineral Creek

Carries Mineral Creek Road over Mineral Creek, Mile Point 0.3.

Overall conditionPoor

Set by its lowest-rated component: Superstructure and Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructuresets the rating4/9 · Poor
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT101 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 4/9 · sets the rating

101 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 through truss.

Built197056 years old
Length101.0 ft30.8 m
Daily traffic75counted 2018
Last inspectedAugust 2023every 24 months

Location

StateAlaska
CountyCounty 063
LocationMile Point 0.3
CarriesMineral Creek Road
CrossesMineral Creek
Coordinates61.14194, -146.36194

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length101.0 ft (30.8 m)
Max Span100.1 ft (30.5 m)
Deck Width12.1 ft (3.7 m)
Deck Area114.0 sq m
Main Spans1
Year Built1970

Traffic

Avg Daily Traffic75 (2018)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number0944

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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