After traveling through additional hilly terrain, US 290 splits east from US 281 and twists through slopes in the Edwards Plateau, where an intersection with RM 3232 in the unincorporated community of Henly provides access to Pedernales Falls State Park. US 290 then curves south to serve downtown Dripping Springs, and then serves various residential areas as it crosses into southwest Austin. The highway then begins a concurrency with SH 71 at a series of traffic lights and travels through Austin's Oak Hill district before becoming a five-to-six-lane freeway. In the community of Sunset Valley, US 290 has interchanges with Loop 1 (MoPac Expressway) and Loop 360 (Capital of Texas Highway) providing access to the Barton Creek Greenbelt, and is then designated as Ben White Boulevard while it travels through south-central Austin, crossing the Missouri Pacific Railroad in the process. Shortly afterward, US 290 splits north from SH 71 in a stack interchange to run concurrent with I-35.