Structure L7275 · Martin County, MN

T 200 over E Fk Des Moines River

Carries T 200 over E Fk Des Moines River, 0.9 Mi E Of Jct Csah 13.

Overall conditionPoor

Set by its lowest-rated component: Deck and Superstructure at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructuresets the rating3/9 · Serious
Substructure4/9 · Poor
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT42 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 3/9 · sets the ratingSubstructure 4/9

42 ft end to end. 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 girder bridge.

Built193195 years old
Length42.3 ft12.9 m
Daily traffic54counted 1986
Last inspectedAugust 2011every 12 months

Location

StateMinnesota
CountyMartin
Location0.9 Mi E Of Jct Csah 13
CarriesT 200
CrossesE Fk Des Moines River
Coordinates43.57340, -94.71578

Physical Characteristics

MaterialConcrete
DesignGirder and Floorbeam
Total Length42.3 ft (12.9 m)
Max Span40.0 ft (12.2 m)
Deck Width19.4 ft (5.9 m)
Deck Area76.1 sq m
Main Spans1
Year Built1931

Traffic

Avg Daily Traffic54 (1986)
Lanes On Bridge1

Inspection & Ownership

Last InspectionAugust 2011
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberL7275

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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