Structure 1570029P0000000 · Teton County, WY

South Entrance Roa over Thumb Creek

Carries South Entrance Roa over Thumb Creek, 0.7 Mi. South Of West Thu.

Overall conditionFair

Set by its lowest-rated component: Deck at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT209 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 6/9

209 ft end to end, longest span 85 ft: about 3 semi-trucks nose to tail. 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 tee-beam bridge.

Built197254 years old
Length209.0 ft63.7 m
Daily traffic1,598counted 2019
Last inspectedSeptember 2024every 24 months

Location

StateWyoming
CountyTeton
Location0.7 Mi. South Of West Thu
CarriesSouth Entrance Roa
CrossesThumb Creek
Coordinates44.40497, -110.56922

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length209.0 ft (63.7 m)
Max Span85.0 ft (25.9 m)
Deck Width36.1 ft (11 m)
Deck Area700.7 sq m
Main Spans3
Year Built1972

Traffic

Avg Daily Traffic1,598 (2019)
Truck Traffic1%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerNational Park Service
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number1570029P0000000

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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