Structure 34093 · Ada County, ID

Trout Road over Seven Suckers Ditch

Carries Trout Road over Seven Suckers Ditch, Idfg Eagle Hatchery.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9Substructure 5/9 · sets the rating

23 ft end to end. Lengths are drawn to scale; at this length a semi-truck would be a speck. 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.

Built1950rebuilt 2020
Length23.0 ft7 m
Daily traffic50counted 2023
Last inspectedOctober 2024every 24 months

Location

StateIdaho
CountyAda
LocationIdfg Eagle Hatchery
CarriesTrout Road
CrossesSeven Suckers Ditch
Coordinates43.67710, -116.40338

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length23.0 ft (7 m)
Max Span21.0 ft (6.4 m)
Deck Width17.1 ft (5.2 m)
Deck Area36.4 sq m
Main Spans1
Year Built1950 (reconstructed 2020)

Traffic

Avg Daily Traffic50 (2023)
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerOther State Agencies
Historical SignificanceHistorical significance is not determined
Scour CriticalUnknown
Structure Number000000000034093

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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