ODOT is warning drivers to be careful driving through Sisters, as the rodeo is getting underway.  It will start on Wednesday afternoon; and so motorists can expect up to 20 minute delays on highway 20 near the rodeo grounds.  Officers will be out managing traffic.  On Saturday, Highway 20 will be closed in Sisters for the Rodeo Parade, which will start around 9:30 a.m.  The highway will reopen following the parade, but drivers should anticipate heavy traffic all weekend long.