Structure 55072 · Olmsted County, MN

M 988 over Willow Creek

Carries M 988 over Willow Creek, 0.8 Mi S Of Jct TH 52.

Overall conditionFair

Set by its lowest-rated component: Deck at 6 of 9.

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT121 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 7/9

121 ft end to end, longest span 45 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 slab bridge.

Built200521 years old
Length120.7 ft36.8 m
Daily traffic5,000counted 2002
Last inspectedJune 2023every 24 months

Location

StateMinnesota
CountyOlmsted
Location0.8 Mi S Of Jct TH 52
CarriesM 988
CrossesWillow Creek
Coordinates43.96685, -92.46384

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length120.7 ft (36.8 m)
Max Span44.6 ft (13.6 m)
Deck Width55.1 ft (16.8 m)
Deck Area618.2 sq m
Main Spans3
Year Built2005

Traffic

Avg Daily Traffic5,000 (2002)
Lanes On Bridge3

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number55072

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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