Structure L5516 · Dodge County, MN

T 177 over Stream

Carries T 177 over Stream, 0.2 Mi S Of Jct Csah 24.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 3 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT31 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

31 ft end to end. 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 multi-beam bridge.

Built194581 years old
Length30.8 ft9.4 m
Daily traffic31counted 1993
Last inspectedSeptember 2024every 12 months

Location

StateMinnesota
CountyDodge
Location0.2 Mi S Of Jct Csah 24
CarriesT 177
CrossesStream
Coordinates44.14999, -92.87911

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length30.8 ft (9.4 m)
Max Span27.9 ft (8.5 m)
Deck Width22.6 ft (6.9 m)
Deck Area64.9 sq m
Main Spans1
Year Built1945

Traffic

Avg Daily Traffic31 (1993)
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 12 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberL5516

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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