Structure AEH · Platte County, WY

I-25 Sbl Off Ramp over US 26

Carries I-25 Sbl Off Ramp over US 26, Dwyer Jct.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT128 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 5/9 · sets the ratingSubstructure 6/9

128 ft end to end, longest span 49 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 slab bridge.

Built196660 years old
Length128.3 ft39.1 m
Daily traffic587counted 2024
Last inspectedJanuary 2025every 24 months

Location

StateWyoming
CountyPlatte
LocationDwyer Jct
CarriesI-25 Sbl Off Ramp
CrossesUS 26
Coordinates42.23105, -105.02290

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length128.3 ft (39.1 m)
Max Span48.9 ft (14.9 m)
Deck Width25.3 ft (7.7 m)
Deck Area301.1 sq m
Main Spans3
Year Built1966

Traffic

Avg Daily Traffic587 (2024)
Truck Traffic35%
Lanes On Bridge1
Lanes Under Bridge1

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberAEH

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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