Structure 28016 · Houston County, MN

Mn 16 over Root River Overflow

Carries Mn 16 over Root River Overflow, 1.3 Mi N Of Jct TH 44.

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 overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT427 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

427 ft end to end, longest span 44 ft: about 6 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 slab bridge.

Built200224 years old
Length426.8 ft130.1 m
Daily traffic7,319counted 2022
Last inspectedMay 2024every 24 months

Location

StateMinnesota
CountyHouston
Location1.3 Mi N Of Jct TH 44
CarriesMn 16
CrossesRoot River Overflow
Coordinates43.78052, -91.33715

Physical Characteristics

MaterialConcrete Continuous
DesignSlab
Total Length426.8 ft (130.1 m)
Max Span44.0 ft (13.4 m)
Deck Width51.2 ft (15.6 m)
Deck Area2029.6 sq m
Main Spans10
Year Built2002

Traffic

Avg Daily Traffic7,319 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number28016

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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