Structure 10141 · Kootenai County, ID

SH 3 over Cda River;rose Lake

Carries SH 3 over Cda River;rose Lake, 3.0 S. Rose Lake.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT431 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

431 ft end to end, longest span 165 ft: about 6 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.

Built199729 years old
Length431.1 ft131.4 m
Daily traffic1,900counted 2023
Last inspectedApril 2022every 48 months

Location

StateIdaho
CountyKootenai
Location3.0 S. Rose Lake
CarriesSH 3
CrossesCda River;rose Lake
Coordinates47.52314, -116.51478

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length431.1 ft (131.4 m)
Max Span165.0 ft (50.3 m)
Deck Width39.7 ft (12.1 m)
Deck Area1589.9 sq m
Main Spans3
Year Built1997

Traffic

Avg Daily Traffic1,900 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000010141

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.

Nearby Bridges