randoogle
Sorry, I realized later that I would need to get all the speeds along the road for this to be helpful. Maybe someone's done that already on Mapillary?  
The sign here was for when we were going south, but hopefully there's some street level photos along the whole stretch of road. It does later change to 45, further south, and 25 further north, near the toll booth, and then 20 at the toll booth, and then back to 25 just after.
I was mostly making these notes for myself to go in and fix later, so I appreciate all the attention.