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United States Department of Transportation
 
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SummaryTrendsCrashesVehiclesPeopleStates
TimeLocationCircumstancesAlcohol

Fatal Crashes and Percent Alcohol-Impaired Driving, by Time of Day and Crash Type - State : USA, Year : 2021

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Time of Day Crash Type Total
Single Vehicle Multiple Vehicle
Number Alcohol-Impaired Driving Percent Alcohol-Impaired Driving Number Alcohol-Impaired Driving Percent Alcohol-Impaired Driving Number Alcohol-Impaired Driving Percent Alcohol-Impaired Driving
Midnight to 2:59 a.m. 3,262 1,731 53 1,353 824 61 4,615 2,556 55
3 a.m. to 5:59 a.m. 2,235 901 40 1,129 482 43 3,364 1,384 41
6 a.m. to 8:59 a.m. 1,865 375 20 1,771 252 14 3,636 627 17
9 a.m. to 11:59 a.m. 1,596 232 15 1,892 220 12 3,488 452 13
Noon to 2:59 p.m. 2,049 340 17 2,754 362 13 4,803 703 15
3 p.m. to 5:59 p.m. 2,677 687 26 3,339 734 22 6,016 1,421 24
6 p.m. to 8:59 p.m. 4,085 1,283 31 2,901 964 33 6,986 2,247 32
9 p.m. to 11:59 p.m. 4,112 1,610 39 2,188 1,026 47 6,300 2,636 42
Unknown 275 130 47 25 7 27 300 137 46
Total 22,156 7,291 33 17,352 4,872 28 39,508 12,162 31
Note: NHTSA estimates alcohol involvement when alcohol test results are unknown.
Alcohol-Impaired Driving – at least one driver or motorcycle rider had a BAC of .08 or higher.