Structure 27770D · Hennepin County, MN

I 394 over Bnsf Rr; Up Rr

Carries I 394 over Bnsf Rr; Up Rr, 1.7 Mi E Of Jct TH 100.

Overall conditionFair

Set by its lowest-rated component: Substructure at 5 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT890 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 5/9 · sets the rating

890 ft end to end, longest span 112 ft: about 2.5 football fields. 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.

Built198739 years old
Length890.4 ft271.4 m
Daily traffic—reported figure implausible
Last inspectedSeptember 2024every 24 months

Location

StateMinnesota
CountyHennepin
Location1.7 Mi E Of Jct TH 100
CarriesI 394
CrossesBnsf Rr; Up Rr
Coordinates44.96979, -93.30373

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length890.4 ft (271.4 m)
Max Span112.2 ft (34.2 m)
Deck Width54.5 ft (16.6 m)
Deck Area4505.2 sq m
Main Spans9
Year Built1987

Traffic

Avg Daily Traffic131,000 (2017)
That is about 65,500 vehicles per lane per day — beyond what any U.S. road carries (the busiest freeways run about 25,000–30,000). It is almost certainly a data-entry error in the National Bridge Inventory, so we leave this bridge out of traffic rankings.
Truck Traffic4%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number27770D

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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