Structure 89182 · Olmsted County, MN

CR 125 over S Fk Zumbro R (dam)

Carries CR 125 over S Fk Zumbro R (dam), 0.6 Mi SE Of Jct Csah 25.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT142 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

142 ft end to end, longest span 20 ft. 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.

Built1934rebuilt 2014
Length142.1 ft43.3 m
Daily traffic499counted 2021
Last inspectedNovember 2023every 24 months

Location

StateMinnesota
CountyOlmsted
Location0.6 Mi SE Of Jct Csah 25
CarriesCR 125
CrossesS Fk Zumbro R (dam)
Coordinates43.99421, -92.52059

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length142.1 ft (43.3 m)
Max Span20.0 ft (6.1 m)
Deck Width44.9 ft (13.7 m)
Deck Area593.2 sq m
Main Spans7
Year Built1934 (reconstructed 2014)

Traffic

Avg Daily Traffic499 (2021)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionNovember 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical8 — Stable, low risk
Structure Number89182

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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