Structure 1912 · Fairbanks North Star County, AK

Parks-ak HWY Ramp over E-n Loop Ramp

Carries Parks-ak HWY Ramp over E-n Loop Ramp, Mile Point 0.1.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT173 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9Substructure 5/9 · sets the rating

173 ft end to end, longest span 89 ft: about 2 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.

Built199432 years old
Length172.6 ft52.6 m
Daily traffic1,070counted 2020
Last inspectedJuly 2024every 24 months

Location

StateAlaska
CountyFairbanks North Star
LocationMile Point 0.1
CarriesParks-ak HWY Ramp
CrossesE-n Loop Ramp
Coordinates64.82101, -147.70519

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length172.6 ft (52.6 m)
Max Span88.6 ft (27 m)
Deck Width24.9 ft (7.6 m)
Deck Area399.8 sq m
Main Spans2
Year Built1994

Traffic

Avg Daily Traffic1,070 (2020)
Truck Traffic7%
Lanes On Bridge1
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number1912

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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