Structure 30590 · Kootenai County, ID

Stc 1699;canyon RD over Coeur Dalene River

Carries Stc 1699;canyon RD over Coeur Dalene River, At Cataldo.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT328 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 4/9 · sets the ratingSubstructure 5/9

328 ft end to end: about 5 semi-trucks nose to tail. Lengths and the semi-truck 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 through truss.

Built193690 years old
Length328.1 ft100 m
Daily traffic680counted 2023
Last inspectedJune 2024every 12 months

Location

StateIdaho
CountyKootenai
LocationAt Cataldo
CarriesStc 1699;canyon RD
CrossesCoeur Dalene River
Coordinates47.54767, -116.33542

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length328.1 ft (100 m)
Max Span250.0 ft (76.2 m)
Deck Width27.2 ft (8.3 m)
Deck Area830 sq m
Main Spans1
Year Built1936

Traffic

Avg Daily Traffic680 (2023)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerOther Local Agencies
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number000000000030590

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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