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Starting as steel skeletons, segments of the new bridge over the St. Croix River are being cast at a plant in Cottage Grove. Soon, they'll head downriver to be lifted in place to begin to form the deck of the bridge near Stillwater.

For St. Croix Crossing engineers, some assembly now required

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Jeffrey Thompson

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Starting as steel skeletons, segments of the new bridge over the St. Croix River are being cast at a plant in Cottage Grove. Soon, they'll head downriver to be lifted in place to begin to form the deck of the bridge.

Jeffrey Thompson | MPR News

Hollow plastic ducts were installed in rebar cages

A concrete segment lifter moved segments.

Segments are cast in the order they will be placed

Work continued in a still-frozen St. Croix River.

Photos: St. Croix bridge is cast piece by (giant) piece

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