Eleven people were killed and 262 others were injured in 661 crashes investigated by the Pennsylvania State Police during the four-day Labor Day weekend.
Troopers also cited 819 people for not wearing seat belts and issued citations to 111 drivers for not securing children in safety seats.
Troopers additionally issued 9,149 speeding citations and arrested 351 people for driving under the influence.
Of the 661 crashes investigated by state police, 77 of those crashes, including two of the fatal crashes, were alcohol related.
During last year's Labor Day holiday, six people died and 262 others were injured in 746 crashes to which state troopers responded.
The statistics cover only those crashes investigated by state police and do not those to which other law enforcement agencies responded.