i said 10ft dam height but you must add the depth of your core in there also. 10 ft dam height with 5 ft core depth would need 1.5 ft of extra dirt on top with slopes that match the top. dont just add dirt to top. make slopes match which requires extra dirt on slopes. you are not actually adding more dirt or more cubic yards to dam. it would be the same amount of dirt using a packer and not having to add any. you just didnt get all the air and voids out of the dam with the dozer so your allowing for that. a pickup or car will pack better than a dozer
