It has not been that long ago that Big Red, known as the new Hastings Bridge spanning the Mississippi River north of the largest city in Dakota County, Minnesota opened to traffic, ending two decades of concerns towards its predecessor, the 1951 Hastings High Bridge known as Big Blue, which was too narrow for traffic and too rusty to maintain. Once a treat to cross while leaving the Twin Cities for southern Minnesota, one now has the longest tied arch bridge in North America to contend with, but the memories of Big Blue will last forever. As of present, demolition has commenced on the old steel arch bridge with both the approach spans being completely removed and the main span being left over.
It’s now a question of what to do with it. Because it is a navagation hazard, the main span will have to be removed. Imploding it is not an answer without having to severely disrupt traffic going through the city and even damaging the new structure. Dismantling it the way it was built in 1951 would be quite a challenge. And using cranes to lift it, carry it to shore and allow people to dismantle it on land would be physically impossible and the costs for the work would be exorbitant.
This leads to the question of what’s next for the bridge. Dave Youngren, who runs a facebook page called Hastings Bridge Watch, has been eyeing the events and presented this picture of both bridges at sunrise, perhaps the last time the bridges will stand side-by-side in this fashion. This leads to the question of what will happen to the old bridge. Look at the picture and see what’s different than the ones provided via link here, based on the author’s multiple visits. How will the main span go down and why? Put your comments here or on the Chronicles’ facebook and LinkedIn pages and share your thoughts about the bridge.
More information on the bridge will follow on the Chronicles.