Structure 19J94 · Dakota County, MN

Csah 23 over Unnamed Ditch

Carries Csah 23 over Unnamed Ditch, 0.7 Mi S Of Jct Csah 9.

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 FT40 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 40 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.

Built20224 years old
Length39.7 ft12.1 m
Daily traffic21,800counted 2019
Last inspectedDecember 2024every 24 months

Location

StateMinnesota
CountyDakota
Location0.7 Mi S Of Jct Csah 9
CarriesCsah 23
CrossesUnnamed Ditch
Coordinates44.68455, -93.21729

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length39.7 ft (12.1 m)
Max Span12.1 ft (3.7 m)
Deck Area292.8 sq m
Main Spans3
Year Built2022

Traffic

Avg Daily Traffic21,800 (2019)
Lanes On Bridge5

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure Number19J94

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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