The S.C. Highway Patrol wrote 214 tickets during the first five days of an aggressive enforcement crackdown on Interstate 26 between Jedburg and Interstate 95.
State troopers issued an additional 143 warnings between Aug. 9 and Friday afternoon, Cpl. Paul Brouthers said.
The numbers from the weekend are not yet available.
The Highway Patrol announced the crackdown in response to a Post and Courier Watchdog analysis this year that identified "death zones" around Ridgeville and Harleyville that had fatality rates three times higher than other stretches of I-26.
Troopers in marked and unmarked patrol cars have joined with deputies from Berkeley and Dorchester counties to write tickets on the 22-mile stretch until it is determined that the crackdown has effectively reduced speeding and reckless driving in the area.