Ready to Go In an effort to highlight aspects of our community that provide potentially unique and beneficial assets to industry, we have put together packages called featured properties. These featured properties contain comprehensive data and information that is often desired during the site selection process and specific to a predetermined location and/or facility. Springfield and Sangamon County currently have 3 featured properties: Industrial Dual Rail Access Site Illiopolis Industrial Rail Site Riverton I-72 Interchange Site Airport Commerce Park