Structure 27051 · Canyon County, ID

Stc3790;allendale over Low Line Canal

Carries Stc3790;allendale over Low Line Canal, 2.4 S. 2.0 E. Wilder.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT37 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

37 ft end to end, longest span 16 ft. 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 channel-beam bridge.

Built199828 years old
Length37.1 ft11.3 m
Daily traffic240counted 2023
Last inspectedMarch 2024every 24 months

Location

StateIdaho
CountyCanyon
Location2.4 S. 2.0 E. Wilder
CarriesStc3790;allendale
CrossesLow Line Canal
Coordinates43.64153, -116.87175

Physical Characteristics

MaterialConcrete
DesignChannel Beam
Total Length37.1 ft (11.3 m)
Max Span16.1 ft (4.9 m)
Deck Width31.5 ft (9.6 m)
Deck Area108.5 sq m
Main Spans2
Year Built1998

Traffic

Avg Daily Traffic240 (2023)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000027051

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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