Even though the 1998-99 charrette focused on Miami Shores and El Portal it was funded by a regional planning initiative (http://www.sfrpc.com/eho.htm) and included the idea for the Little River Preserve. Afterwareds a citizens committee from Oakland Grove in Miami and El Portal worked with City of Miami Parks to do this proposal. It was funded, a management plan draft and environmental study initiated, and then arsenic pollution was discovered. The history of that is in AfterBrownfieldFinal_Report1june02.pdf

Since then it has become easier to get brownfields funding for pollution cleanup. The site stayed listed as a park in the master plan (though in Miami21 is listed as "sub-urban" whatever that is).

These are various documents about the process:
Application (note how comp plan connection is weaved in)
Florida Communities Trust Application 2000 (1).pdf

Management Plan.pdf

battle lost in the Miami City Commission resulting in the current zoning

MiamiParks05d_UpperEast.pdf
MiamiParks05eLittleHaiti.pdf
Information H Gladwin was not allowed to present at April commission meeting.pdf

This is what failed to pass Miami Commission because some other neighborhood activists could not get it together to help us.
agreement_between_developer&neighbors_to_let_MCC_make_land_use_change.pdf