Structure EUH · Niobrara County, WY

Ni Cnty RD 13 over Lance Creek

Carries Ni Cnty RD 13 over Lance Creek, 2 Miles N.e. Of Cow Creek.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 6/9

142 ft end to end, longest span 69 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.

Built198343 years old
Length142.1 ft43.3 m
Daily traffic17counted 2024
Last inspectedOctober 2023every 24 months

Location

StateWyoming
CountyNiobrara
Location2 Miles N.e. Of Cow Creek
CarriesNi Cnty RD 13
CrossesLance Creek
Coordinates43.26185, -104.58483

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length142.1 ft (43.3 m)
Max Span68.9 ft (21 m)
Deck Width14.8 ft (4.5 m)
Deck Area194.8 sq m
Main Spans2
Year Built1983

Traffic

Avg Daily Traffic17 (2024)
Truck Traffic6%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberEUH

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