Structure 35005 · Kittson County, MN

Mn 175 over Red River Of The North

Carries Mn 175 over Red River Of The North, At N Dakota State Line.

Overall conditionFair

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

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

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT1,311 FT OVERALL250 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 7/9Substructure 5/9 · sets the rating

1,311 ft end to end, longest span 180 ft: about 3.6 football fields. 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.

Built196858 years old
Length1310.7 ft399.5 m
Daily traffic376counted 2021
Last inspectedAugust 2024every 24 months

Location

StateMinnesota
CountyKittson
LocationAt N Dakota State Line
CarriesMn 175
CrossesRed River Of The North
Coordinates48.78756, -97.15778

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length1310.7 ft (399.5 m)
Max Span180.1 ft (54.9 m)
Deck Width35.4 ft (10.8 m)
Deck Area4314.6 sq m
Main Spans2
Year Built1968

Traffic

Avg Daily Traffic376 (2021)
Truck Traffic33%
Lanes On Bridge2

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number35005

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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