1 hour and 15 minutes. According to Baidu map query, the distance between Danling and Leshan Zhanggongqiao Food Street is 83 kilometers, and it takes 1 hour and 15 minutes to drive, via Guanghong Expressway and Chengle Expressway. The specific route is:

1. Depart from Danling and pass Guanghong Expressway.

2. Secondly, it passes through Chengle Expressway.

3. Finally, reach the Zhanggongqiao Food Street in Leshan.