Structure 24825 · Jerome County, ID

Co. Rd.;old US 93 over R Canal

Carries Co. Rd.;old US 93 over R Canal, 13.2 N. Twin Falls.

Overall conditionFair

Set by its lowest-rated component: Deck and Superstructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

42 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.

Built193492 years old
Length42.0 ft12.8 m
Daily traffic5counted 2023
Last inspectedMarch 2023every 24 months

Location

StateIdaho
CountyJerome
Location13.2 N. Twin Falls
CarriesCo. Rd.;old US 93
CrossesR Canal
Coordinates42.78042, -114.43378

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length42.0 ft (12.8 m)
Max Span40.0 ft (12.2 m)
Deck Width27.6 ft (8.4 m)
Deck Area107.5 sq m
Main Spans1
Year Built1934

Traffic

Avg Daily Traffic5 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000024825

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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