PETROLIA – Police closed several rural roads near hear Saturday after two separate collisions just hours apart.Shortly before noon, the St. Clair Township Fire Department posted on its Facebook page they were on the scene of a crash and that Kimball Road was closed between Petrolia Line and Rokeby Line.“Avoid the area,” the fire department wrote.In an update posted soon after, they said they’d cleared the scene and Kimball Road was open again.The St. Clair Township Fire