Shannon Crossen

Shannon is an ecologist specializing in ecological connectivity, nature-based solutions and nature-positive infrastructure. She embeds conservation, resilience and environmental performance into infrastructure planning and delivery, creating projects that support both communities and ecosystems. Her work spans conservation planning and ecosystem restoration as well as environmental compliance, enabling clients to navigate complex environmental requirements while improving long-term project outcomes. 

Before joining Jacobs, Shannon served as a district biologist for a major U.S. transportation agency, where she supported delivery of complex infrastructure projects while advancing ecological conservation. She brings experience in wildlife passage, regulatory permitting, environmental review and ecological planning, combining technical expertise with a collaborative approach that connects engineering and policy with environmental science. Shannon is passionate about helping the industry recognize the value of bridges, culverts and other everyday infrastructure as opportunities to not only reconnect habitats but also improve public safety and strengthen ecological resilience.