Structure 29530 · Hubbard County, MN

Csah 38 over Channel

Carries Csah 38 over Channel, 1.2 Mi SE Of Jct Csah 39.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT77 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

77 ft end to end, longest span 29 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.

Built201016 years old
Length77.4 ft23.6 m
Daily traffic754counted 2022
Last inspectedSeptember 2023every 24 months

Location

StateMinnesota
CountyHubbard
Location1.2 Mi SE Of Jct Csah 39
CarriesCsah 38
CrossesChannel
Coordinates47.13885, -94.67402

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length77.4 ft (23.6 m)
Max Span28.9 ft (8.8 m)
Deck Width39.4 ft (12 m)
Deck Area283.2 sq m
Main Spans3
Year Built2010

Traffic

Avg Daily Traffic754 (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 Critical5 — Stable for scour
Structure Number29530

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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