CAHOKIA — September 27, 2010. Governor Pat Quinn today joined transportation officials at the St. Louis Downtown Airport in Cahokia to open a $2.7 million runway extension and announce a $4.4 million investment to widen the primary runway. The runway expansions will accommodate growing demand and larger planes, while improving the safety of the airport. The airport is a major regional economic engine with an annual impact of approximately $300 million and nearly 1900 full-time employees. When completed, the projects will have created 178 construction jobs.