Once construction begins, detour signs will be placed rerouting traffic around Allen Loop.
The goal is to bring the area back to its natural state. An entirely new bridge will be built, said county public information manager Louis E. Svehla, with one lane going each way.
The road will remain closed until further notice as there is no firm completion date, but crews aim to have the project wrapped up by March 2014.
For more information, contact the Public Works Department at 850-892-8108.