Structure 1212 · Fairbanks North Star County, AK

Nordale Road over Chena River (nordale Rd)

Carries Nordale Road over Chena River (nordale Rd), Mile Point 2.3.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT180 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

180 ft end to end, longest span 87 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built1975rebuilt 2013
Length180.1 ft54.9 m
Daily traffic2,110counted 2020
Last inspectedAugust 2024every 24 months

Location

StateAlaska
CountyFairbanks North Star
LocationMile Point 2.3
CarriesNordale Road
CrossesChena River (nordale Rd)
Coordinates64.84659, -147.41039

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length180.1 ft (54.9 m)
Max Span87.3 ft (26.6 m)
Deck Width37.1 ft (11.3 m)
Deck Area620.4 sq m
Main Spans2
Year Built1975 (reconstructed 2013)

Traffic

Avg Daily Traffic2,110 (2020)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number1212

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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