Structure 46505 · Martin County, MN

Csah 33 over Elm Creek

Carries Csah 33 over Elm Creek, 1.3 Mi N Of Jct Csah 38.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT93 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 3/9 · sets the rating

93 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 channel-beam bridge.

Built196561 years old
Length93.2 ft28.4 m
Daily traffic128counted 2022
Last inspectedNovember 2024every 12 months

Location

StateMinnesota
CountyMartin
Location1.3 Mi N Of Jct Csah 38
CarriesCsah 33
CrossesElm Creek
Coordinates43.75103, -94.55224

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length93.2 ft (28.4 m)
Max Span31.2 ft (9.5 m)
Deck Width31.5 ft (9.6 m)
Deck Area272.6 sq m
Main Spans3
Year Built1965

Traffic

Avg Daily Traffic128 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical2 — Bridge closed (monitoring)
Structure Number46505

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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