It's tough to get support for a memorial when the state/local government can't say they were proud in what happened there. It's going to take some private donations by Alabama firms to build a memorial in Selma. A good start would be for someone to write a strong letter to large Alabama papers suggesting a memorial for the bridge & John Lewis. But selma the area needs jobs, such as those that have left for other countries over the past 40 years.
There is a memorial park but it's not very well kept up. The whole area needs revitalization, just need an enterprising person to see its potential.