Structure LDR · Carbon County, WY

Arrowhead Drive over Cadwell Slough

Carries Arrowhead Drive over Cadwell Slough, Saratoga.

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 overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 8/9Substructure 7/9

70 ft end to end. 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 tee-beam bridge.

Built200125 years old
Length69.9 ft21.3 m
Daily traffic60counted 2024
Last inspectedAugust 2023every 24 months

Location

StateWyoming
CountyCarbon
LocationSaratoga
CarriesArrowhead Drive
CrossesCadwell Slough
Coordinates41.45186, -106.79998

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length69.9 ft (21.3 m)
Max Span67.9 ft (20.7 m)
Deck Width20.3 ft (6.2 m)
Deck Area132.1 sq m
Main Spans1
Year Built2001

Traffic

Avg Daily Traffic60 (2024)
Truck Traffic27%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberLDR

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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