Structure 9370001P0000000 · Nez Perce County, ID

Entrance Road over Lapwai Creek

Carries Entrance Road over Lapwai Creek, 1.4 Miles Southeast Of Jc.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

65 ft end to end. Lengths and the car 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.

Built198838 years old
Length65.0 ft19.8 m
Daily traffic225counted 2019
Last inspectedJuly 2024every 24 months

Location

StateIdaho
CountyNez Perce
Location1.4 Miles Southeast Of Jc
CarriesEntrance Road
CrossesLapwai Creek
Coordinates46.44850, -116.81792

Physical Characteristics

MaterialWood or Timber
DesignTruss - Thru
Total Length65.0 ft (19.8 m)
Max Span60.0 ft (18.3 m)
Deck Width24.0 ft (7.3 m)
Deck Area144.5 sq m
Main Spans1
Year Built1988

Traffic

Avg Daily Traffic225 (2019)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number9370001P0000000

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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