Simplify the following text for a Grade 6 native English-speaking person.
Original: Highway 10 was built in 1953 , and Highway 15 in 1957 . In 1964 , the provincial government completed Highway 401 and the Port Mann Bridge ; that section of roadway would later be renamed Highway 1 .
Simplified: Six highways run through Surrey , Highway 10 , Highway 99 , Highway 99A , Highway 15 , Highway 1 , and Highway 1A .