Structure NCB · Teton County, WY

US 26 over Snake River

Carries US 26 over Snake River, Hoback Jct - Jackson.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT625 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

625 ft end to end, longest span 193 ft: about 1.7 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 multi-beam bridge.

Built20224 years old
Length625.0 ft190.5 m
Daily traffic11,746counted 2024
Last inspectedAugust 2022every 24 months

Location

StateWyoming
CountyTeton
LocationHoback Jct - Jackson
CarriesUS 26
CrossesSnake River
Coordinates43.34329, -110.72235

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length625.0 ft (190.5 m)
Max Span192.6 ft (58.7 m)
Deck Width77.1 ft (23.5 m)
Deck Area4476.8 sq m
Main Spans4
Year Built2022

Traffic

Avg Daily Traffic11,746 (2024)
Truck Traffic5%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2022
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberNCB

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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