“Carry the tomb husk to the bridge and break the spell sop you can cross.”
“Summon the bridge” is an objective in the mission Last Rites in Destiny: The Taken King
head over to the right and jump up onto the level above you. Be wary of the patrolling Ogre. When it moves away, head over to the altar and place the Tomb Husk in it. Let the bridge form after that.