... and certain Sussex County roads are open but covered with water. Here's the list.

DelDOT has closed roads because of high water. Use  DelDOT Live Traffic, WMTC 1380 AM, or the DelDOT app for live updates on road conditions.

New Castle County CLOSED

Nonesuch Creek at Airport Road
Old State Road at Old Corbitt Road
Pyles Lane at Pigeon Road
Route 9/Silver Run at Appoquinimink River

Kent County CLOSED

Route 9 between Paddock Road and Woodland Beach Road
Deep Grass Lane between Thistlewood Road and Williamsville Road
Prospect Church Road south of Route 14
Deep Grass Lane between Williamsville Road and Gun and Rod Club Road
Andrewsville Road between Flat Iron Road and Gingerwood Road
Killens Pond Road south of Sandbox Road
Big Stone Beach Road between New Wharf Road and Greenhouse Road
Fork Landing Road between Rothermel Road and Carpenters Bridge Road

Sussex County CLOSED

Prime Hook Road in Milton
Fred Hudson Road between Route 1 and Cedar Neck Road
Front Street in Milton
River Road in Oak Orchard
Route 36/Cedar Beach Road at Drawbridge to Bay Avenue
New Road at Canary Creek
Falling Point Road between Route 26 and Wingate Road
Round Pole Bridge Road between Hudson Road and the Bridge

OPEN, however water is on the roadway --  use caution:

Oyster Road near end of the road
Cods Road at Draper Road
Thirteen Curves road at Cods Road
Long Neck Road between Mariners Cove Development to Masseys Landing
South Shore Drive between Route 1 and dead end
Route 16 between Turkle Pond Road to the end