Structure DMB · Sublette County, WY

US 189 over South Fork Green River

Carries US 189 over South Fork Green River, Kemmerer - Daniel Jct.

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
Substructure8/9 · Very Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT120 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 8/9

120 ft end to end, longest span 59 ft. 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.

Built198145 years old
Length120.1 ft36.6 m
Daily traffic1,434counted 2024
Last inspectedJuly 2024every 24 months

Location

StateWyoming
CountySublette
LocationKemmerer - Daniel Jct
CarriesUS 189
CrossesSouth Fork Green River
Coordinates42.87509, -110.07182

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length120.1 ft (36.6 m)
Max Span59.1 ft (18 m)
Deck Width42.7 ft (13 m)
Deck Area475.8 sq m
Main Spans2
Year Built1981

Traffic

Avg Daily Traffic1,434 (2024)
Truck Traffic9%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberDMB

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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