See if you want to cross a bridge or a second bridge.

Cross the bridge, take 542 and get off at Qingnian Road. After getting off, wait for 208 at the station and get off at Sanyanqiao directly.

If you take the second bridge, take 5 14 to Simeitang Station, cross the street to the entrance of Xinyijia Supermarket, and take 7 19 to Sanyan Bridge.