I think having ON-401 cross a bridge to a no-name road kinda diminishes a great highway. ON-401 should directly connect to our interstate system in my opinion. Its just that, my opinion.
Well, ON 401 won't be crossing a bridge to a no-name road, but neither will it connect directly to our interstate system, and if you want it to, you're not just going to have to talk to MDOT, but also to MTO, since they don't designate the 400-series highways onto the international bridges. The designation stops where MTO jurisdiction does, so even if you got Michigan to sign the bridge as something, there would still be a gap, making the whole exercise pointless.
As a side, I thought ON-405 met I-190 at the border..
In fairness, I am really not thinking about the bridge itself, even though I did say "cross the bridge to the border."
I am really focusing on the approaches to the bridge. We all know ON-401 will be designated up to the approach. The few thousand feet from there to the border (on the bridge) will be ASSUMED ON-401. The US side has no highway to connect to, other than a T interchange with I-75. In other words, its not like you are extending a pre existing interstate that just ended abruptly. The US side will be a whole new construction to get it from the border to I-75. I am more talking about that roadway. You can stop both the ON-401 and the I-401 designations at the bridge, but everyone will just assume you are still on those highways when crossing the bridge. I am not trying to get technical to the exact spot you stop the designations.
When you say "so even if you got Michigan to sign the bridge as something, there would
still be a gap, making the whole exercise pointless" implies you stop the ON-401 designation a few miles from the start of the bridge. As it is, you will get out of customs an be right on ON-401.
This is no different than secret designations. I-345 is signed as I45 southbound and US-75 northbound. It is not either of those roads because they both ended already, but everyone thinks they are what they are signed because it's just easier to think of it that way.
I am focusing on the roadway past the bridge. Do we just call it Sam Cooper Blvd?