Structure L7075 · Todd County, MN

T 411 over Turtle Creek

Carries T 411 over Turtle Creek, 0.1 Mi E Of Jct Csah 25.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 56 ft across with 3 openings. 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, so those are drawn as typical for a culvert.

Built1940rebuilt 2016
Length56.4 ft17.2 m
Daily traffic15counted 1970
Last inspectedSeptember 2023every 24 months

Location

StateMinnesota
CountyTodd
Location0.1 Mi E Of Jct Csah 25
CarriesT 411
CrossesTurtle Creek
Coordinates46.04918, -94.81181

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length56.4 ft (17.2 m)
Max Span15.4 ft (4.7 m)
Deck Area115.2 sq m
Main Spans3
Year Built1940 (reconstructed 2016)

Traffic

Avg Daily Traffic15 (1970)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberL7075

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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