On the St. Croix River, big numbers for a big bridge

  • Article by: KEVIN GILES , Star Tribune
  • Updated: October 13, 2013 - 7:10 AM

By 2016, the metal superstructures rising out of the St. Croix River will eventually support the deck of the bridge — standing 15 stories above the water. Everything about the project is big.

1,300,000 Cubic yards of earth that will be removed for Minnesota's approach highways to the bridge.

400,000 Tons that five river piers will support.

92,857 Dump truck loads of earth hauled from the bridge site.

18,000 Estimated daily traffic count on new bridge.

10,000 Tons supported by each of 40 drilled shafts in the river.

5,027 Length, in feet, of the St. Croix River bridge when completed.

4,461 Total square feet of wall in reconstruction of scenic outlook. More than 95 percent remains original.

600 Navigation width between piers in feet, of the bridge over the water.

270 Ames/Lunda and Ed Kraemer and Sons workers currently on site.

208 Height, in feet, over the river. (About two times taller than the Interstate 94 bridge at Hudson, Wis.)

120 Depth, in feet, of bridge footings drilled below the river’s surface.

117 Longest span, in feet, of beams on new Beach Road overpass.

87 Depth, in feet, of “muck” at bottom of river.

45 Percent completion of Minnesota approach work (new highways) leading to bridge.

38 Barges used in building bridge foundations.

6 Percent completion of the bridge itself.

0 Percent completion of Wisconsin approach highways. Work begins in 2014.

  • related content

  • Piers for a new St. Croix River bridge rise out of the water at one of the barges where crews have drilled footings deep in the bedrock.

  • The top of the piers of the new bridge will stand from 180-225 ft. above the water level, but below the bluff line. Sunnyside Marina is shown at left, the Wisconsin approach at right. Good weather this fall has allowed construction workers to make good progress.

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