Hi
When you have 2 static routes with 2 different AD, It will always take the lowest AD.
If your 1st route with AD 1 goes away then the 2nd one with AD 2 Will be installed in your device RIB and traffic will be forwarded using if.
Just to add a remark: if you really want the route to be removed in any case (interface down, next hop not responding, next hop not forwarding any traffic...), I would configure an ipsla (icmp sla) associated with a tracking and attach it to the static route with AD 1. Doing it that way, you ensure you remove the static route automatically when facing an issue.
Thanks
Francesco
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