Structure 46067147 · Ransom County, ND

Nd Highway 46 over Sheyenne River

Carries Nd Highway 46 over Sheyenne River, 6 West Of Nd 32.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT155 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

155 ft end to end, longest span 56 ft: about 2 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 multi-beam bridge.

Built1960rebuilt 2011
Length154.9 ft47.2 m
Daily traffic560counted 2020
Last inspectedJune 2023every 24 months

Location

StateNorth Dakota
CountyRansom
Location6 West Of Nd 32
CarriesNd Highway 46
CrossesSheyenne River
Coordinates46.63003, -97.93988

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length154.9 ft (47.2 m)
Max Span56.1 ft (17.1 m)
Deck Width33.8 ft (10.3 m)
Deck Area486.2 sq m
Main Spans3
Year Built1960 (reconstructed 2011)

Traffic

Avg Daily Traffic560 (2020)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number0046067147

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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