Pond Boss Forums INTRO Questions & Observations New pond on a live spring

Could you make a dam downstream of the spring to create a say 1/4 ac pond, get the elevation high enough that it will be higher than the proposed pond, THEN route the water away (around) the proposed pond area using the higher elevation to keep the water out of the lower pond basin while it's constructed? Then once the main pond is completed, just divert that upper pond down a waterfall (say 4') to fall into the main pond. Use upper pond for forage fish or as a grow out pond for the main pond.