Riverdale residents could wait more than two years before a replacement Pyramid Bridge is installed.
The wooden bridge, which had spanned the Mataura River for 88 years, collapsed during a flood last February.
Gore District Council Transport Manager Peter Standring confirmed the new 4.5m-wide single-lane structure would be situated "in almost the same place'' as the former bridge.
He said tenders for construction would be called early next month, but construction was not expected to be completed until 2020.