That loop road through Hutto has been there a while. The 85 mph section are new segments that just opened today. It extends eat of I-35 and catches I-10 into San Antonio:
http://mysh130.com/segments-5-6/maps-photos-schematics/interactive-map/
Thank you for the correction! I've been on 130 many times but not recently - I'll drive that new stretch next time I'm down that way.