Structure 53128270 · Williams County, ND

County Highway over Stony Creek

Carries County Highway over Stony Creek, 1 South Spring Brook.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT84 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

84 ft end to end, longest span 40 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 tee-beam bridge.

Built1920106 years old
Length84.0 ft25.6 m
Daily traffic24counted 2020
Last inspectedJuly 2023every 24 months

Location

StateNorth Dakota
CountyWilliams
Location1 South Spring Brook
CarriesCounty Highway
CrossesStony Creek
Coordinates48.24128, -103.47126

Physical Characteristics

MaterialConcrete Continuous
DesignTee Beam
Total Length84.0 ft (25.6 m)
Max Span40.0 ft (12.2 m)
Deck Width18.7 ft (5.7 m)
Deck Area145.9 sq m
Main Spans2
Year Built1920

Traffic

Avg Daily Traffic24 (2020)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalUnknown
Structure Number000000053128270

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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