The project is set to begin in 2025, and the replacement bridge is expected to be complete by Fall 2028. Kiewit estimates rebuilding the bridge will cost about $1.2 billion, which is less than the initial projection of $1.7 billion, but a more accurate cost projection will be made halfway through phase one.https://www.cbsnews.com/baltimore/news/mdta-board-approves-key-bridge-rebuild-contract/