According to LTD Trip planner, Commerce Street to Wal-Mart W 11th is 
1 hour 47 mins with two transfers (shortest time) or
2 hours 6 mins with two transfers (longest time).
https://www.ltd.org/tripplanner.php?from=commerce+street&from_place_id=ChIJN7bT5FjnwFQRerA4biZ9b_4&to=Walmart+Supercenter%2C+4550+W+11th+Ave%2C+Eugene%2C+OR+97402%2C+USA&to_place_id=ChIJ4VAdzhscwVQRKKJ5_JX9cfE&date=09%2F15&altdate=09%2F15%2F2017&time=4%3A43+pm&type=departing&route=fast