The Sanford Dam breached on Tuesday after days of heavy rain
Michigan Floods: Evacuations After Edenville And Sanford Dams Breached
Parts of Midland, a city some 140 miles (209 km) of Detroit, could be under 9ft (2.7m) of water, authorities said.
Dow chemical company, which is based in the city, has set up emergency steps.
The Edenville dam collapsed on Tuesday. As of Wednesday morning, the Sanford dam remains intact, but floodwaters have been flowing over it.
Governor Gretchen Whitmer declared a state of emergency for Midland County in mid-Michigan on Tuesday, and said the city of Midland – of population of more than 40,000 – could see a “historic high water level”.
“This is unlike anything we’ve seen in Midland County,” Ms Whitmer said at a news conference. “To go through this in the midst of a global pandemic is almost unthinkable.”
It was the second time in 24 hours that residents were told to evacuate because of rising waters. They have been advised to wear a face covering and observe social distancing while evacuating to prevent the spread of the coronavirus.
The National Weather Service (NWS) said this was an “extremely dangerous and life-threatening situation”, with the Tittabawassee River expected to crest at a record of 38ft by Wednesday morning local time.
Early Wednesday, the NWS said the river had broken its previous Midland record water level of 33.8ft. The river floods when water is above 24ft, and it is currently over 34ft.
Local media report floodwaters several feet high have inundated streets in the area.
In a statement, Dow said it had activated its flood preparedness plan which includes the safe shutdown of operating units. Only essential staff needed to monitor the situation and manage any issues remained on site, which sits on Midland’s riverbank, the company added.
Built in 1924, the Edenville Dam was rated in unsatisfactory condition by the state in 2018 while the Sanford Dam, which was built in 1925, was given a fair condition rating, the Associated Press news agency reports. It said both dams were in the process of being sold.
President Donald Trump is expected to visit Michigan on Thursday, to tour a Ford plant that is manufacturing ventilators to help in the response to the coronavirus. Ms Whitmer, who has not been invited to attend the event, has criticised the Trump administration’s handling of the crisis.
The visit is, technically, a violation of the restrictions imposed by the governor to curb the spread of the virus in Michigan, which has been hit hard with more than 50,000 confirmed cases and 5,000 deaths. But a spokesman for the governor said she would not try to block the visit.
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