<Table> <Tr> <Td> ← SR 99 </Td> <Td> </Td> <Td> SR 143 → </Td> </Tr> </Table> <Tr> <Td> ← SR 99 </Td> <Td> </Td> <Td> SR 143 → </Td> </Tr> <P> Arizona State Route 101, or Loop 101, (spoken as one - oh - one) is a semi-beltway encompassing much of the Phoenix Metropolitan Area in the United States . It connects several suburbs of Phoenix, including Tolleson, Glendale, Peoria, Scottsdale, Mesa, Tempe, and Chandler . Construction began in the late - 1980s and was completed in 2001 . Additional general purpose lanes and a high occupancy vehicle lane (HOV) are being constructed along the eastern stretch of Loop 101 from Scottsdale to Chandler, starting at Princess Drive to Loop 202 (the Santan Freeway). </P> <P> Loop 101 has interchanges with almost all area freeways, including: Loop 202, US 60, SR 51, Interstate 17, and Interstate 10 along its 61 - mile (98 km) route . </P>

When was the 101 freeway built in az