Structure 71016 · Sherburne County, MN

TH 169 over Main ST

Carries TH 169 over Main ST, 0.9 Mi N Of Jct TH 10.

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
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT195 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

195 ft end to end: about 3 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 multi-beam bridge.

Built20242 years old
Length194.9 ft59.4 m
Daily traffic45,629counted 2021
Last inspectedOctober 2024every 24 months

Location

StateMinnesota
CountySherburne
Location0.9 Mi N Of Jct TH 10
CarriesTH 169
CrossesMain ST
Coordinates45.30320, -93.55472

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length194.9 ft (59.4 m)
Max Span190.3 ft (58 m)
Deck Width77.1 ft (23.5 m)
Deck Area1395.9 sq m
Main Spans1
Year Built2024

Traffic

Avg Daily Traffic45,629 (2021)
Truck Traffic9%
Lanes On Bridge4
Lanes Under Bridge7

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure Number71016

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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