Structure 10035 · Boundary County, ID

US 2 over Moyie R.gorge;moyie Br.

Carries US 2 over Moyie R.gorge;moyie Br., In Moyie Springs.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,223 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

1,223 ft end to end, longest span 378 ft: about 3.4 football fields. 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 deck truss.

Built196561 years old
Length1223.1 ft372.8 m
Daily traffic2,600counted 2023
Last inspectedJuly 2023every 24 months

Location

StateIdaho
CountyBoundary
LocationIn Moyie Springs
CarriesUS 2
CrossesMoyie R.gorge;moyie Br.
Coordinates48.72983, -116.17992

Physical Characteristics

MaterialSteel Continuous
DesignTruss - Deck
Total Length1223.1 ft (372.8 m)
Max Span378.0 ft (115.2 m)
Deck Width34.1 ft (10.4 m)
Deck Area3877.1 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic2,600 (2023)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical9 — Foundation above flood level
Structure Number000000000010035

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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