Q: How do you move a 3.5 million-pound bridge? A: One inch at a time.
For the new Larpenteur Ave. Bridge over I-35E north of St. Paul, Minn., MnDOT used an innovative slide-in-bridge-construction method that let us build the new bridge next to the existing bridge. Then we removed the old bridge and slid the new structure into place, a distance of 84 feet, using hydraulic jacks. This sped up the time the bridge would be closed (from 110 days to 47) and reduced costs for the people who use the road, reduced impacts on area businesses and improved safety for workers and motorists.
Toward Zero Deaths is a inter-agency program that strives to eliminate traffic fatalities and serious injuries from Minnesota roads. The agencies involved are the Minnesota Department of Transportation, the Minnesota Department of Public Saftey and the Minnesota Department of Health as well as partners and organizations from around the state.