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CONSTRUCTION BEGINS - 2013
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MINNESOTA DEPARTMENT OF TRANSPORTATION CONSTRUCTION PROJECT


The St. Croix Visual Quality Review Committee (VQRC) and Project Team (Wisconsin DOT, Minnesota DOT and Consultant Team) have enthusiastically chosen the "Organic" architectural bridge concept for further development. This concept successfully balances engineering and functional criteria of cost, maintenance and construction means with visual, aesthetic and architectural project criteria. Of the three concepts presented at the mid-September Open Houses, the public also preferred this concept. Working with the VQRC, the Project Team will continue to move forward with further architectural and engineering refinement of the "Organic" concept.


Preliminary Concepts of Potential Bridge Types
Structure Types Technical Report - July revised Dec 2004 (2,260k pdf)
The following bridge types are being considered across the 4 build alternatives
The sketches shown depict an artist's rendering of the bridge types that could be possible for the alternatives being considered. Aesthetic, geometric, and physical restrictions limit the potential bridge types at each alternative's location. These renderings are not at equal scale.
Some Real World Examples
Alternative B-1
B1-2 - Aerial - 1500 FT Cable Stay B1-2 - Park - 1500 FT Cable Stay B1-2 - River - 1500 FT Cable Stay
Aerial - 1500 FT Cable Stay Park - 1500 FT Cable Stay River - 1500 FT Cable Stay
B1-3 - Aerial - Six 500 FT Extradosed Box Girders B1-3 - Park - Six 500 FT Extradosed Box Girders B1-3 - River - Six 500 FT Extradosed Box Girders
Aerial - Six 500 FT Extradosed Box Girders Park - Six 500 FT Extradosed Box Girders River - Six 500 FT Extradosed Box Girders
B1-4 - Aerial - Ten 360 FT Haunched Conc Box Girders B1-4 - Park - Ten 360 FT Haunched Conc Box Girders B1-4 - River - Ten 360 FT Haunched Conc Box Girders
Aerial - Ten 360 FT Haunched Conc Box Girders Park - Ten 360 FT Haunched Conc Box Girders River - Ten 360 FT Haunched Conc Box Girders
Alternative C
C1 - Aerial - Six 350 FT Haunched Conc Box Girders C1 - Park - Six 350 FT Haunched Conc Box Girders C1 - River - Six 350 FT Haunched Conc Box Girders
Aerial - Six 350 FT Haunched Conc Box Girders Park - Six 350 FT Haunched Conc Box Girders River - Six 350 FT Haunched Conc Box Girders
C2 - Aerial - 500 FT Conc Deck Arch and Box Girder Approaches C2 - Park - 500 FT Conc Deck Arch and Box Girder Approaches C2 - River - 500 FT Conc Deck Arch and Box Girder Approaches
Aerial - 500 FT Conc Deck Arch and Box Girder Approaches Park - 500 FT Conc Deck Arch and Box Girder Approaches River - 500 FT Conc Deck Arch and Box Girder Approaches
C3 - Aerial - Four 500 FT Extradosed Girders C3 - Park - Four 500 FT Extradosed Girders C3 - River - Four 500 FT Extradosed Girders
Aerial - Four 500 FT Extradosed Girders Park - Four 500 FT Extradosed Girders River - Four 500 FT Extradosed Girders
Alternative D
D1 - Aerial - Three 350 FT Steel Thru Trusses D1 - Park - Three 350 FT Steel Thru Trusses D1 - River - Three 350 FT Steel Thru Trusses
Aerial - Three 350 FT Steel Thru Trusses Park - Three 350 FT Steel Thru Trusses River - Three 350 FT Steel Thru Trusses
D2 - Aerial - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Conc Girders D2 - Park - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Girders D2 - River - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Conc Girders
Aerial - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Conc Girders Park - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Girders River - 500 FT Steel Bowstring Main Span with Five 250 FT Haunched Conc Girders
D3 - Aerial - Seven 250 FT Conc Arches D3 - Park- Seven 250 FT Conc Arches D3 - River - Seven 250 FT Conc Arches
Aerial - Seven 250 FT Conc Arches Park- Seven 250 FT Conc Arches River - Seven 250 FT Conc Arches
D4 - Aerial - 500 FT Conc Thru Arch with Five 250 FT Conc Arches D4 - Park - 500 FT Conc Thru Arch with Five 250 FT Conc Arches D4 - River - 500 FT Conc Thru Arch with Five 250 FT Conc Deck Arches
Aerial - 500 FT Conc Thru Arch with Five 250 FT Conc Arches Park - 500 FT Conc Thru Arch with Five 250 FT Conc Arches River - 500 FT Conc Thru Arch with Five 250 FT Conc Deck Arches
Alternative E
E1 - Aerial - Steel Thru Trusses E1 - Park - Steel Thru Trusses E1 - River - Four 350 FT Steel Thru Trusses
Aerial - Steel Thru Trusses Park - Steel Thru Trusses River - Four 350 FT Steel Thru Trusses
E2 - Aerial - Four 350 FT Bowstring Trusses E2 - Park - Four 350 FT Bowstring Trusses E2 - River - Four 350 FT Steel Bowstring Trusses
Aerial - Four 350 FT Bowstring Trusses Park - Four 350 FT Bowstring Trusses River - Four 350 FT Steel Bowstring Trusses
E3 - Aerial - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Box Girders E3 - Park - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Girders E3 - River - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Box Girders
Aerial - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Box Girders Park - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Girders River - 500 FT Steel Bowstring Truss with Four 250 FT Flush Haunched Conc Box Girders

 

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