Michael Baker Jr is today unveiling 30 concept designs for the Downtown Bridge, part of the US$2 billion Ohio River Bridges Project in the Louisville-Southern Indiana region of the US. Public meetings will be used to gauge interest in various types of bridge including arched, cable-stayed and steel truss designs. There has been a commitment to engage the public in selection of the bridge type while satisfying the functional needs of the structure and recognising the project's fiscal limitations.