Structure 20010 · Dodge County, MN

Mn 56 over US 14

Carries Mn 56 over US 14, At The Jct TH 56.

Overall conditionGood

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

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT210 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

210 ft end to end, longest span 103 ft: about 3 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built199828 years old
Length210.0 ft64 m
Daily traffic3,800counted 2019
Last inspectedJuly 2023every 24 months

Location

StateMinnesota
CountyDodge
LocationAt The Jct TH 56
CarriesMn 56
CrossesUS 14
Coordinates44.01837, -92.85922

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length210.0 ft (64 m)
Max Span102.7 ft (31.3 m)
Deck Width75.5 ft (23 m)
Deck Area1,472 sq m
Main Spans2
Year Built1998

Traffic

Avg Daily Traffic3,800 (2019)
Truck Traffic8%
Lanes On Bridge4
Lanes Under Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number20010

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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