Texas Department of Transportation officials are moving closer to building a new general aviation airport in central Texas. Fifteen possible locations have been identified. The new airport will require about 700 acres of land to facilitate a 7,000-foot runway on opening day. Cost of construction is estimated to be $55 to $65 million, including the land acquisition and installation of a precision approach. Based on the initial analysis, the preferred sites are located in Williamson County to the east of Interstate Highway 35, but more detailed study is necessary before the top three sites can be selected for full airport master planning. It is expected that this portion of the process will be completed by the end of October. "We continue to move closer to providing critically needed general aviation capacity in the Austin area," said Bill Dunn, AOPA vice president of airports. He added that AOPA is committed to seeing this new airport built and serving its intended purpose.