Structure 56548 · Otter Tail County, MN

Csah 41 over Star Lake Channel

Carries Csah 41 over Star Lake Channel, 1.6 Mi S Of Jct TH 108.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructure9/9 · Excellent
Substructure9/9 · Excellent
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT70 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 9/9Substructure 9/9

70 ft end to end, longest span 27 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.

Built20224 years old
Length69.9 ft21.3 m
Daily traffic760counted 2019
Last inspectedOctober 2024every 24 months

Location

StateMinnesota
CountyOtter Tail
Location1.6 Mi S Of Jct TH 108
CarriesCsah 41
CrossesStar Lake Channel
Coordinates46.52127, -95.84486

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length69.9 ft (21.3 m)
Max Span26.9 ft (8.2 m)
Deck Width49.9 ft (15.2 m)
Deck Area323.8 sq m
Main Spans3
Year Built2022

Traffic

Avg Daily Traffic760 (2019)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number56548

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.