Structure 46542 · Martin County, MN

T 12 over Elm Creek

Carries T 12 over Elm Creek, 1.5 Mi S Of Jct CR 138.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 1 of 9.

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating1/9 · Imminent Failure
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT119 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 1/9 · sets the rating

119 ft end to end, longest span 30 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.

Built197947 years old
Length119.1 ft36.3 m
Daily traffic26counted 1986
Last inspectedOctober 2022every 24 months

Location

StateMinnesota
CountyMartin
Location1.5 Mi S Of Jct CR 138
CarriesT 12
CrossesElm Creek
Coordinates43.71071, -94.69454

Physical Characteristics

MaterialWood or Timber
DesignSlab
Total Length119.1 ft (36.3 m)
Max Span29.9 ft (9.1 m)
Deck Width29.9 ft (9.1 m)
Deck Area330.3 sq m
Main Spans4
Year Built1979

Traffic

Avg Daily Traffic26 (1986)
Lanes On Bridge2

Inspection & Ownership

Last InspectionOctober 2022
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number46542

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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