Structure 1808 · Fairbanks North Star County, AK

Johansen Expresswy over College Road Uc

Carries Johansen Expresswy over College Road Uc, Mile Point 3.0.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT206 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

206 ft end to end: 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 box-beam bridge.

Built199135 years old
Length206.4 ft62.9 m
Daily traffic13,800counted 2020
Last inspectedAugust 2024every 24 months

Location

StateAlaska
CountyFairbanks North Star
LocationMile Point 3.0
CarriesJohansen Expresswy
CrossesCollege Road Uc
Coordinates64.85692, -147.71519

Physical Characteristics

MaterialSteel
DesignBox Beam - Multiple
Total Length206.4 ft (62.9 m)
Max Span198.8 ft (60.6 m)
Deck Width80.4 ft (24.5 m)
Deck Area1541.0 sq m
Main Spans1
Year Built1991

Traffic

Avg Daily Traffic13,800 (2020)
Truck Traffic3%
Lanes On Bridge4
Lanes Under Bridge6

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1808

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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