Structure 46503 · Martin County, MN

Csah 53 over Elm Creek

Carries Csah 53 over Elm Creek, 1.1 Mi S Of Jct Csah 44.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT93 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · 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.

Built196462 years old
Length93.2 ft28.4 m
Daily traffic401counted 2022
Last inspectedSeptember 2023every 24 months

Location

StateMinnesota
CountyMartin
Location1.1 Mi S Of Jct Csah 44
CarriesCsah 53
CrossesElm Creek
Coordinates43.75894, -94.34767

Physical Characteristics

MaterialPrestressed Concrete
DesignChannel Beam
Total Length93.2 ft (28.4 m)
Max Span30.8 ft (9.4 m)
Deck Width31.8 ft (9.7 m)
Deck Area275.5 sq m
Main Spans3
Year Built1964

Traffic

Avg Daily Traffic401 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical3 — Scour critical
Structure Number46503

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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