Structure KJT · Niobrara County, WY

Wyo 270 over Cherry Creek

Carries Wyo 270 over Cherry Creek, Lance Creek-south.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT125 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

125 ft end to end, longest span 48 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.

Built199531 years old
Length125.0 ft38.1 m
Daily traffic285counted 2024
Last inspectedMarch 2024every 24 months

Location

StateWyoming
CountyNiobrara
LocationLance Creek-south
CarriesWyo 270
CrossesCherry Creek
Coordinates43.00535, -104.64428

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length125.0 ft (38.1 m)
Max Span47.9 ft (14.6 m)
Deck Width38.7 ft (11.8 m)
Deck Area449.6 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic285 (2024)
Truck Traffic34%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberKJT

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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