An Interjurisdictional Planning Commission is hereby created with Merrick County, Nebraska, pursuant to the requirement of Neb. R.R.S. §19-930, et seq. Said Interjurisdictional Planning Commission shall have the powers, duties, responsibilities and functions of the regional planning commission for the City of Grand Island in the unincorporated area of Merrick County that is within two miles of the corporate boundaries of the City of Grand Island.