Officials with the Township of Lake of Bays say Hwy. 35 between Birkendale Rd. and Seabreeze Rd. in Dwight has reopened.
They say repairs are continuing so there may be occasional single-lane closures.
The stretch of road had been closed in both directions since lunchtime on Monday because of a washout.
The MyMuskokaNow.com newsroom has been sent multiple pictures and videos of flooding that has caused the stretch of highway to seemingly split in half.
