MnDOT and WisDOT will now carry out evaluation and work with the Federal Highway Administration to certify the bids.
The US$380 million Lunda/Ames bid includes a price component and a time component - called A +B bidding. Each component is confidential until the project is awarded later in November. MnDOT and WisDOT pay the contractor the price component. The time component includes the number of days the contractor bids to complete the project, which gets assigned a dollar value. The time component is not part of the actual contract value.
The extradosed-type bridge design was selected by a community stakeholder group. Other construction work in the contract includes ramp structures north and south of the main bridge and an approach bridge.
Construction will take approximately three years to complete, with the St Croix Crossing opening to traffic in autumn 2016.