This 6-minute-film on the Oregon Highway 43 culvert, located near the confluence of Tryon Creek and the Willamette River, was produced by Portland State University students:
- Tarquinn Boyatt,
- Jeff Heller and
- Chris Thomson,
as part of the "Sustainability through the Forest UNST Capstone" class, in partnership with instructor Gabe Sheoships, and Friends of Tryon Creek featuring John Mullen (Park Manager Tryon Creek State Natural Area between 2010 - 2016) and Carl Axelsen (volunteer with Friends of Tryon Creek and Tryon Creek Watershed Council).