Structure 27221 · Canyon County, ID

Sma3748;ustick RD over Deer Flat Canal

Carries Sma3748;ustick RD over Deer Flat Canal, 3.0 S. 1.1 E. Wilder.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructure8/9 · Very Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 7/9 · sets the ratingSubstructure 8/9

32 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 rigid-frame bridge.

Built1998rebuilt 2002
Length32.2 ft9.8 m
Daily traffic1,200counted 2023
Last inspectedOctober 2024every 24 months

Location

StateIdaho
CountyCanyon
Location3.0 S. 1.1 E. Wilder
CarriesSma3748;ustick RD
CrossesDeer Flat Canal
Coordinates43.63233, -116.88996

Physical Characteristics

MaterialConcrete
DesignFrame
Total Length32.2 ft (9.8 m)
Max Span32.2 ft (9.8 m)
Deck Width31.2 ft (9.5 m)
Deck Area93.1 sq m
Main Spans1
Year Built1998 (reconstructed 2002)

Traffic

Avg Daily Traffic1,200 (2023)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000027221

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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