Structure 22305 · Bingham County, ID

Airport Road over High Line Canal

Carries Airport Road over High Line Canal, 1.5 S. 1.7 W. Aberdeen.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

37 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.

Built196363 years old
Length37.1 ft11.3 m
Daily traffic200counted 2023
Last inspectedMarch 2024every 24 months

Location

StateIdaho
CountyBingham
Location1.5 S. 1.7 W. Aberdeen
CarriesAirport Road
CrossesHigh Line Canal
Coordinates42.92217, -112.87244

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length37.1 ft (11.3 m)
Max Span36.1 ft (11 m)
Deck Width27.9 ft (8.5 m)
Deck Area96.0 sq m
Main Spans1
Year Built1963

Traffic

Avg Daily Traffic200 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000022305

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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