Structure 5872 · Marshall County, MN

Mn 317 over Red River Of The North

Carries Mn 317 over Red River Of The North, At N Dak State Line.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
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 FT412 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

412 ft end to end, longest span 200 ft: about 6 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 through truss.

Built193987 years old
Length412.1 ft125.6 m
Daily traffic330counted 2018
Last inspectedJune 2024every 12 months

Location

StateMinnesota
CountyMarshall
LocationAt N Dak State Line
CarriesMn 317
CrossesRed River Of The North
Coordinates48.41342, -97.13745

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length412.1 ft (125.6 m)
Max Span200.1 ft (61 m)
Deck Width25.9 ft (7.9 m)
Deck Area992.2 sq m
Main Spans2
Year Built1939

Traffic

Avg Daily Traffic330 (2018)
Truck Traffic15%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number5872

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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