MAT had originally sought USD 67.5M, however the companies negotiated the settlement down to USD 58.5M. The settlement closes an issue that marred the early stages of the project in July 2011.

As workers prepared to start boring the tunnel from the MacArthur Causeway to the port, MAT asked FDOT and its partners — Miami-Dade County and the city of Miami — to provide additional money from a contingency fund to cover expenses linked to the extra grouting.

The twin tunnel project is among the improvements being made at Port Miami in preparation for an increase in cargo following the Panama Canal expansion.