The Surface Transportation Act (US) of 1987 was the first transportation bill of the post-interstate era. It nominally gave power to apportion money to the Secretary of Transportation[?]. Most noticeably it allowed states to raise the speed limit to 65 miles per hour (105 km/h) on rural interstate highways.
... from 18 to 24, 30.3% from 25 to 44, 20.9% from 45 to 64, and 9.8% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 91.0 males. ...