Structure 25128040 · McHenry County, ND

County Road over Willow Creek

Carries County Road over Willow Creek, 12 East Of Upham.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

65 ft end to end, longest span 17 ft. 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 multi-beam bridge.

Built194779 years old
Length65.0 ft19.8 m
Daily traffic25counted 2018
Last inspectedOctober 2022

Location

StateNorth Dakota
CountyMcHenry
Location12 East Of Upham
CarriesCounty Road
CrossesWillow Creek
Coordinates48.57394, -100.45024

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length65.0 ft (19.8 m)
Max Span17.1 ft (5.2 m)
Deck Width22.3 ft (6.8 m)
Deck Area134.6 sq m
Main Spans4
Year Built1947

Traffic

Avg Daily Traffic25 (2018)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2022
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000025128040

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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