Structure 17035 · Kootenai County, ID

I 90 Wbl over Coeur Dalene River

Carries I 90 Wbl over Coeur Dalene River, 10.3 W. Kellogg.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT509 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 5/9 · sets the rating

509 ft end to end, longest span 73 ft: about 7 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 multi-beam bridge.

Built196462 years old
Length508.9 ft155.1 m
Daily traffic7,000counted 2023
Last inspectedJune 2023every 24 months

Location

StateIdaho
CountyKootenai
Location10.3 W. Kellogg
CarriesI 90 Wbl
CrossesCoeur Dalene River
Coordinates47.54672, -116.33399

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length508.9 ft (155.1 m)
Max Span73.2 ft (22.3 m)
Deck Width34.8 ft (10.6 m)
Deck Area1644.1 sq m
Main Spans7
Year Built1964

Traffic

Avg Daily Traffic7,000 (2023)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical3 — Scour critical
Structure Number000000000017035

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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