If you are going to Porterville this weekend 190 off of 99 is closed and there is a detour. Take Exit 77 off of 99 and follow the signs for the 190 detour. Here are detailed instructions:
From CA-99 S take exit 77 toward Ave 152/Tipton, turn Right on N Burnett Rd, take the 1st Right onto Ave 152/W Olive Ave, go 12 miles and turn Right on Road 208, go 3 miles and turn Left onto Ave 128, go 1.9 miles and follow the signs to enter to the Left through the Livestock Entrance on the East side of the fairgrounds, continue around north/rear of fairgrounds and left through gate to parking areas adjacent to covered arena.
From CA-99 N take exit 77, Left onto Ave 152/W Olive Ave and continue as above.