Structure 40304000001052 · Teton County, WY

Forest Road 30460 over Hoback River

Carries Forest Road 30460 over Hoback River, 20 Mi. Se. Of Jackson Wy.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure4/9 · Poor
Substructuresets the rating3/9 · Serious
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT110 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9Substructure 3/9 · sets the rating

110 ft end to end, longest span 54 ft. 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 girder bridge.

Built196561 years old
Length109.9 ft33.5 m
Daily traffic501 lanes
Last inspectedAugust 2024every 12 months

Location

StateWyoming
CountyTeton
Location20 Mi. Se. Of Jackson Wy
CarriesForest Road 30460
CrossesHoback River
Coordinates43.28803, -110.65207

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length109.9 ft (33.5 m)
Max Span54.5 ft (16.6 m)
Deck Width16.1 ft (4.9 m)
Deck Area164.2 sq m
Main Spans2
Year Built1965

Traffic

Avg Daily Traffic50
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number040304000001052

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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