Route-1 Low Clearance database

I've had the 1 year sub. Problem is it doesn't route around low bridges, just gives a warning ding on the gps as you approach like any poi. You install them with the garmin poi loader. By then you may be commited. Better than nothing but I don't think it is better than a gps with the ability to avoid low bridges based on a height profile you enter -or an app like co pilot that does same. With low clearance it is best to trip plan with several sources.