Robert L.B. Tobin Land Bridge Part of the continued development includes the Robert L.B. Tobin Land Bridge, the first in the world designed for the safe passage of both wildlife and people. At 150-feet long and 150-feet wide, it opened December 2020 and is the largest wildlife crossing constructed to date in the United States. Built across the busy lanes of Wurzbach Parkway, the Land Bridge unifies the previously divided 330-acre Hardberger Park located in north central San Antonio. Pedestrians and animals traversing the Land Bridge will have the experience of climbing a peaceful hill, unaware of the roadway below. The natural experience will be enhanced over time as native trees and plants such as live oak, mountain laurel and persimmon fill in the landscape across the bridge. Amenities such as wildlife viewing blinds designed by local artists Cade Bradshaw and Ashley Mireles and a Skywalk that gently climbs through the treetops leading to the bridge offer park visitors unique new ways to connect with nature.