Structure 19071 · Bonner County, ID

SH 200 over Lightning Creek

Carries SH 200 over Lightning Creek, Clark Fork Wcl.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure8/9 · Very Good
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT426 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

426 ft end to end, longest span 210 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.

Built201016 years old
Length425.9 ft129.8 m
Daily traffic2,000counted 2023
Last inspectedAugust 2024every 48 months

Location

StateIdaho
CountyBonner
LocationClark Fork Wcl
CarriesSH 200
CrossesLightning Creek
Coordinates48.15194, -116.18406

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length425.9 ft (129.8 m)
Max Span210.0 ft (64 m)
Deck Width42.3 ft (12.9 m)
Deck Area1674.4 sq m
Main Spans2
Year Built2010

Traffic

Avg Daily Traffic2,000 (2023)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000019071

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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