Structure 27552 · Hennepin County, MN

Msas 407 over Nine Mile Creek

Carries Msas 407 over Nine Mile Creek, 0.5 Mi W Of Jct TH 35w.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT209 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 7/9

209 ft end to end, longest span 110 ft: 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 rigid-frame bridge.

Built196858 years old
Length209.0 ft63.7 m
Daily traffic8,239counted 2021
Last inspectedAugust 2024every 12 months

Location

StateMinnesota
CountyHennepin
Location0.5 Mi W Of Jct TH 35w
CarriesMsas 407
CrossesNine Mile Creek
Coordinates44.81193, -93.30222

Physical Characteristics

MaterialSteel Continuous
DesignFrame
Total Length209.0 ft (63.7 m)
Max Span109.9 ft (33.5 m)
Deck Width55.1 ft (16.8 m)
Deck Area1070.2 sq m
Main Spans3
Year Built1968

Traffic

Avg Daily Traffic8,239 (2021)
Lanes On Bridge3

Inspection & Ownership

Last InspectionAugust 2024
Inspection FrequencyEvery 12 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure Number27552

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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