The bridge will link an upcoming industrial area, close to the now defunct Sheffield City airport, with an existing woodland park over the A630 on the outskirts of the city.
According to the brief, the winning scheme will be 'a pleasure to cross, will respond to the local landscape, and will be deliverable and beautiful to look at'.
It is hoped the bridge will create a 'vital link' for pedestrians, cyclists and horses and will become a 'reference point for everyone using that route'.
The open competition will be run in two stages, with a total honoraria prize fund of £27,000 to be shared among the stage two teams.
A full design brief will be available from next week and the deadline for stage one submission is 16 October.