Structure 25755 · Ada County, ID

Stoddard Road over Ridenbaugh Canal

Carries Stoddard Road over Ridenbaugh Canal, 2.2 S. 0.6 W. Meridian.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
23 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

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 tee-beam bridge.

Built1968rebuilt 2007
Length23.0 ft7 m
Daily traffic4,100counted 2023
Last inspectedOctober 2023every 24 months

Location

StateIdaho
CountyAda
Location2.2 S. 0.6 W. Meridian
CarriesStoddard Road
CrossesRidenbaugh Canal
Coordinates43.57728, -116.40378

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length23.0 ft (7 m)
Max Span22.0 ft (6.7 m)
Deck Width49.9 ft (15.2 m)
Deck Area106.4 sq m
Main Spans1
Year Built1968 (reconstructed 2007)

Traffic

Avg Daily Traffic4,100 (2023)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000025755

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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