Pumps are primed and dams erected as Jacksonville prepares for the wind and water of Hurricane Milton.

Jacksonville officials have already deployed extra pumps in parts of San Marco where streets flooded in other storms, usually around high tides.

High tides are expected about 3 a.m. Thursday and again about 3 p.m.

The mayor advises people to expect similar river flooding throughout the weekend and next week in parts of San Marco, Ortega, Riverside, the Southampton and St. Nicholas area of the Southside, as well as the Ribault, Trout and Moncrief waterway area.

The city also expects 2 to 4 feet of storm surge at the Beaches and along the Intracoastal Waterway near Butler Boulevard.

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For the first time, the city is using Tiger Dams — large plastic tubes that can be filled with water to act as barriers to floodwaters.

A ring of the Tiger Dams is already in place at the Landon Avenue pump station in San Marco and at the other pump station near Children’s Way, both flood-prone areas.

More Tiger Dams more should be in place later Wednesday along the beach dunes in Atlantic and Jacksonville Beach.