Roads impact wildlife in a variety of ways including increased habitat fragmentation and mortality in the form of wildlife vehicle collisions. Wildlife crossings can help promote habitat connectivity and reduce vehicle collisions by providing animals a safe place to cross the road. In South Texas, wildlife crossings are being installed as part of highway improvement projects to help reduce impacts of highways on the endangered ocelot (Leopardus pardalis). One highway where mitigation structures are being installed is United States Highway 77 (US 77), where several wildlife crossings are being installed along a 30-km section of US 77 in Willacy and Kenedy Counties, including three large bridge-type structures. One of these bridge-type wildlife crossings was completed in October 2020. To assess the effectiveness of this structure, we began monitoring it using camera traps and conducting surveys for wildlife road mortalities along the entire mitigation area on US 77 in October 2020. We report preliminary results from our camera monitoring and wildlife road mortality surveys. We present cumulative curves and latency to detection curves for species using the wildlife crossing, including bobcat (Lynx rufus, n=3), coyote (Canis latrans, n=70), raccoon (Procyon lotor, n=59), armadillo (Dasypus novemcinctus), and javelina (Pecari tajacu). Most wildlife road mortalities we detected were white-tailed deer (Odocoileus virginianus), raptors (primarily hawks and owls), coyote, raccoon, and bobcat. These results help provide a comparison for long-term monitoring of the mitigation area and a baseline level of wildlife road mortality for areas where construction has not yet begun.