Structure 25580 · Twin Falls County, ID

1600 East RD over High Line Canal

Carries 1600 East RD over High Line Canal, 6.3 S. 1.5 E. Buhl.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT47 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 6/9

47 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 multi-beam bridge.

Built196858 years old
Length46.9 ft14.3 m
Daily traffic80counted 2023
Last inspectedFebruary 2023every 24 months

Location

StateIdaho
CountyTwin Falls
Location6.3 S. 1.5 E. Buhl
Carries1600 East RD
CrossesHigh Line Canal
Coordinates42.50608, -114.73156

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length46.9 ft (14.3 m)
Max Span44.9 ft (13.7 m)
Deck Width30.8 ft (9.4 m)
Deck Area134.4 sq m
Main Spans1
Year Built1968

Traffic

Avg Daily Traffic80 (2023)
Truck Traffic10%
Lanes On Bridge2

Inspection & Ownership

Last InspectionFebruary 2023
Inspection FrequencyEvery 24 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number000000000025580

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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