Structure 19896 · Dakota County, MN

I 494 over Up Railroad Hardman AVE

Carries I 494 over Up Railroad Hardman AVE, 0.4 Mi E Of Jct TH 156.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT260 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

260 ft end to end, longest span 140 ft: about 4 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.

Built1988rebuilt 2002
Length260.5 ft79.4 m
Daily traffic103,528counted 2022
Last inspectedSeptember 2023every 24 months

Location

StateMinnesota
CountyDakota
Location0.4 Mi E Of Jct TH 156
CarriesI 494
CrossesUp Railroad Hardman AVE
Coordinates44.88048, -93.02447

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length260.5 ft (79.4 m)
Max Span140.4 ft (42.8 m)
Deck Width164.0 ft (50 m)
Deck Area3,970 sq m
Main Spans2
Year Built1988 (reconstructed 2002)

Traffic

Avg Daily Traffic103,528 (2022)
Truck Traffic14%
Lanes On Bridge7
Lanes Under Bridge2

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number19896

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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