Structure 18266 · Adams County, ID

US 95 over Little Salmon River

Carries US 95 over Little Salmon River, 13.9 N. New Meadows Ncl.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT114 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

114 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 multi-beam bridge.

Built20197 years old
Length114.2 ft34.8 m
Daily traffic3,100counted 2023
Last inspectedMay 2023every 48 months

Location

StateIdaho
CountyAdams
Location13.9 N. New Meadows Ncl
CarriesUS 95
CrossesLittle Salmon River
Coordinates45.14805, -116.29085

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length114.2 ft (34.8 m)
Max Span111.5 ft (34 m)
Deck Width43.6 ft (13.3 m)
Deck Area462.8 sq m
Main Spans1
Year Built2019

Traffic

Avg Daily Traffic3,100 (2023)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number000000000018266

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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