Structure 27430 · Canyon County, ID

Sma3343;locust LN over New York Canal

Carries Sma3343;locust LN over New York Canal, 3.2s 3.7e Nampa City Ctr.

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 FT64 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

64 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.

Built198838 years old
Length64.0 ft19.5 m
Daily traffic1,100counted 2023
Last inspectedFebruary 2022every 48 months

Location

StateIdaho
CountyCanyon
Location3.2s 3.7e Nampa City Ctr
CarriesSma3343;locust LN
CrossesNew York Canal
Coordinates43.53217, -116.49042

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length64.0 ft (19.5 m)
Max Span63.0 ft (19.2 m)
Deck Width49.9 ft (15.2 m)
Deck Area296.4 sq m
Main Spans1
Year Built1988

Traffic

Avg Daily Traffic1,100 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2022
Inspection FrequencyEvery 48 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000027430

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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