Va. Code Ann. § 21-332

In any case where surveys have been made by or under the direction of any engineer, surveyor, corporation, town, city, county, state or of the United States government, of lands, in any part or parcel of land included within any proposed drainage district, authority is given to the court in which the proceedings involving such land are condemned to adopt such survey or surveys and such information concerning the same as can be obtained from the engineer, surveyor, corporation, town, city, county, state or United States government, and to dispense with any other survey work which in its judgment can be omitted without prejudice to the right of any party whose lands are affected.