From: Arnhem (holland) yes a bridge to far...
Well a GP 500lbs bomb contains less then 50% of its mass in explosives, the rest is steel casing, fins and detonators and is thus relatively difficult to destroy once dropped on a ballistic arch.
But virtually all precision weapons like JDAM and SBD's are basically winged glide bombs with relative vulnerable wings and guidance sections that simply will get shredded when hit by any sort of SAM. This will result in an out of control weapons that is highly unlikely to hit its intended target, for all purposes this weapon is thus "destroyed" once hit.
In vinum illic est sapientia , in matera illic est vires , in aqua illic es bacteria.
In wine there is wisdom, in beer there is strength, in water there are bacteria.