Sorry to post and dissappear guys. They're not trapped I think it may be their home :/
They're at least 6 weeks old. The culvert goes all the way under the road, so it's easily 30 feet long. Way too long to reach in and it's too small for me to crawl through.
After I left some food out, I went back to see if it was eaten and it hasn't been. Mama may have moved them since I was out running with my dog when I spotted them. She may have felt threatened. I just hope it's far away from the road!
I'm gonna go check again tomorrow and see if there's any signs of them having come back. I'd hate to find them on the side of the road after being run over
