Transcript for World's largest man-made wildlife crossing proposed to replace aging bridge
It's an idea that seem so crazy it might actually work I knew the moment would start after 30000 people signed their petition turning interstate eighty bridge into a buffalo crossing might be that much closer according to project manager Kevin martek. I think the support incidently helped on the legislative side you know. I think that will help law you know movement DOT used to maybe. With signatures I didn't have expectations or what exactly how many would sign up a bridge foundered had to graft he says the outpouring is exciting our goals it out and in truth he I think next month year will far exceed that are with all. Support has come some questions including what tape of her peers the structure might need. The bridge is 55 years old and has needed millions of dollars in maintenance over the last decade. That's partly why the Illinois Department of Transportation has been looking to build a new one. It's estimated that 40000 cars in semis cross the bridge every day Chad says if you take away those vehicles the bridge can last longer with last repairs. It's just last time it's right reach insults. Roads bridges and there's pretty sure I'd been old it was passed very long time. But not everyone agrees alone little maintenance and environmental. Eric. Every. Scolds I really don't meet actors. Still the bison average teams as they're prepared to maintain the bridge no matter what's crossing at. This ritual about a community you know that's no big thing.
This transcript has been automatically generated and may not be 100% accurate.