Structure 20560 · Dodge County, MN

Msas 109 over Masten Creek

Carries Msas 109 over Masten Creek, 0.9 Mi E Of Jct TH 57.

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
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT125 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

125 ft end to end. 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.

Built201214 years old
Length124.7 ft38 m
Daily traffic2,391counted 2021
Last inspectedJuly 2023every 24 months

Location

StateMinnesota
CountyDodge
Location0.9 Mi E Of Jct TH 57
CarriesMsas 109
CrossesMasten Creek
Coordinates44.04386, -92.72981

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length124.7 ft (38 m)
Max Span120.1 ft (36.6 m)
Deck Width60.4 ft (18.4 m)
Deck Area699.2 sq m
Main Spans1
Year Built2012

Traffic

Avg Daily Traffic2,391 (2021)
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number20560

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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