16-inch shells or Tomahawks against a bridge

Would 16-inch shells or Tomahawk missiles be more useful against a modern bridge with minimal defenses?

Use 16-inch gunfire when the target lies within gun range because it is cheaper and highly destructive; use Tomahawk when the required stand-off distance exceeds the gun's reach.

Within battleship-gun range, 16-inch shells offer a comparatively inexpensive way to deliver repeated heavy impacts and would damage much more than a single aim point. Tomahawk becomes the better choice when the ship must remain beyond gun range. The comparison is therefore not an abstract contest between old and new weapons but a mission decision driven by stand-off distance, cost, and desired damage.