Original sentence: After the intersection, the roadway had an estimated daily average of 25,000 motorists in 2007, causing this stretch of road to be the busiest on the whole highway.forms the western boundary of Lake Stevens and the eastern boundary of Marysville while passing a weigh station and the  junction
Edited sentence: After the intersection, the roadway had an estimated daily average of 25,000 motorists in 2007, causing this stretch of road to be the busiest on the whole highway; SR 9 also forms the western boundary of Lake Stevens and the eastern boundary of Marysville while passing a weigh station and the  junction