Construction bidding and costs concerns spur plan to postpone start of project to next spring 9:57 pm, May 20, 2021 × An artist rendering shows design elements for Discovery Walk, a planned linear park along Second Avenue Southwest between Mayo Clinic’s Annenberg Plaza and Soldiers Field Park. (Coen+Partners) Construction on redeveloping a four-block section of Second Avenue Southwest, south of Second Street, in Rochester is being delayed to 2022. “We are in a very unpredictable bidding environment,” said Chris Schad, director of business development for Destination Medical Center’s Discovery Square District. “The city is finding major projects are having a much smaller number of bids coming back on projects, which increases the risk of having too high of bids on projects.”