The construction of the second Nile Bridge is set for December 2013.
The Uganda National Roads Authority says it has finalized the process to kick start the multi-billion project.
The acting executive director of UNRA Ssebbugga Kimeze says once construction gets underway it will take up to four years to complete the works including the construction of several new access roads.
Kimeze notes that more than half of the property owners affected by the project have already been compensated.
Once the new bridge is ready, traffic flow will be eased for motorists travelling from the Kenyan port city of Mombasa into Uganda and beyond.