Structure 29048182 · Richland County, ND

Nd Highway 46 over I-29/KINDRED Interchange

Carries Nd Highway 46 over I-29/KINDRED Interchange, Junction Nd 46 & I-29.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure7/9 · Good
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT235 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 7/9

235 ft end to end, longest span 117 ft: about 3 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.

Built1972rebuilt 1998
Length234.9 ft71.6 m
Daily traffic900counted 2019
Last inspectedApril 2023every 24 months

Location

StateNorth Dakota
CountyRichland
LocationJunction Nd 46 & I-29
CarriesNd Highway 46
CrossesI-29/KINDRED Interchange
Coordinates46.63022, -96.83173

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length234.9 ft (71.6 m)
Max Span117.1 ft (35.7 m)
Deck Width42.7 ft (13 m)
Deck Area930.8 sq m
Main Spans2
Year Built1972 (reconstructed 1998)

Traffic

Avg Daily Traffic900 (2019)
Truck Traffic22%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number0029048182

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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