Charleston’s flood-prone Crosstown Expressway is one step closer to getting fixed.

Mayor Joe Riley announced today the city has lined up $25 million to begin the next phase of construction to keep work continuing next year, after the current phase ends in late May.

The S.C. Department of Transportation approved giving the city $12.5 million in federal dollars, and the city will match that sum with $12.5 million of its own money collected from a tax increment finance district around the Gaillard Auditorium.

Riley called the news "a significant milestone and substantial progress in achieving the ultimate solution to fixing the flooding on the Crosstown."

The next phase of work will involve adding new drainage lines and infrastructure under western Spring and Cannon streets, as well as part of Ashley Avenue and President Street, up to Fishburne Street. Unlike the first phase, it should not affect Crosstown traffic.

Riley and City Traffic and Transportation director Hernan Pena said Friday morning’s traffic congestion due to the current Crosstown work were not as bad as Thursday’s, which wasn’t as bad as the city had expected.

The final phase of the $154 million drainage project will be the most costly and involves sinking deep shafts into new tunnels drilled about 140 feet below the western peninsula, plus new equipment to pump water from those tunnels into the Ashley River.

Read more in Saturday’s editions of The Post and Courier.