Structure 321 · Southeast Fairbanks County, AK

Taylor Highway over North Fork King Solomon

Carries Taylor Highway over North Fork King Solomon, Mile Point 134.2.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

110 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 tee-beam bridge.

Built198838 years old
Length109.9 ft33.5 m
Daily traffic20counted 2020
Last inspectedJuly 2023every 24 months

Location

StateAlaska
CountySoutheast Fairbanks
LocationMile Point 134.2
CarriesTaylor Highway
CrossesNorth Fork King Solomon
Coordinates64.53611, -141.25417

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length109.9 ft (33.5 m)
Max Span108.9 ft (33.2 m)
Deck Width29.2 ft (8.9 m)
Deck Area298.1 sq m
Main Spans1
Year Built1988

Traffic

Avg Daily Traffic20 (2020)
Truck Traffic28%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0321

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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