Structure L9285 · Roseau County, MN

Service RD over Sprague Creek

Carries Service RD over Sprague Creek, 8.0 Mi N Of Jct Csah 28.

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 FT65 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

65 ft end to end, longest span 31 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 slab bridge.

Built197056 years old
Length64.6 ft19.7 m
Daily traffic2counted 1970
Last inspectedOctober 2024every 12 months

Location

StateMinnesota
CountyRoseau
Location8.0 Mi N Of Jct Csah 28
CarriesService RD
CrossesSprague Creek
Coordinates48.99263, -95.66232

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length64.6 ft (19.7 m)
Max Span30.8 ft (9.4 m)
Deck Width23.3 ft (7.1 m)
Deck Area139.9 sq m
Main Spans2
Year Built1970

Traffic

Avg Daily Traffic2 (1970)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure NumberL9285

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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