Structure DMT · Carbon County, WY

Cb Cnty RD 680 over Encampment River

Carries Cb Cnty RD 680 over Encampment River, 4 Miles N. Of Encampment.

Overall conditionPoor

Set by its lowest-rated component: Superstructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT183 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

183 ft end to end, longest span 90 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 through truss.

Built1915111 years old
Length183.1 ft55.8 m
Daily traffic71counted 2024
Last inspectedAugust 2024every 12 months

Location

StateWyoming
CountyCarbon
Location4 Miles N. Of Encampment
CarriesCb Cnty RD 680
CrossesEncampment River
Coordinates41.26550, -106.74423

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length183.1 ft (55.8 m)
Max Span89.9 ft (27.4 m)
Deck Width14.1 ft (4.3 m)
Deck Area239.9 sq m
Main Spans2
Year Built1915

Traffic

Avg Daily Traffic71 (2024)
Truck Traffic11%
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure NumberDMT

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.

Nearby Bridges