Colo. Rev. Stat. § 38-6-112
Any person who is the owner of, or who has any interest in, any of the property mentioned in said report, whether appropriated or damaged or against which special benefits have been assessed, may appear, at or before the time fixed by the court for the consideration of said report but not after said time, and file his written objection to said report. Default shall be entered against the owners of all property mentioned in said report who have not filed objections thereto within said time, and the report shall be confirmed by the court as to such persons. At the time fixed by the court for the consideration of said report, the court shall proceed to hear any objections that have been filed, except where a jury trial has been demanded, as provided for in section 38-6-113. Any party interested in said proceeding may introduce such evidence as may tend to establish the right of the matter. The burden of proof to change any finding, award, or assessment of said commissioners shall be upon the person objecting thereto. If it appears to the court that the property of the objector has been appraised by the commissioners at more or less than the fair, actual cash market value thereof, or that the fair, direct, and actual damage to property not taken is greater or less than the amount awarded by the commissioners, or that the property of the objector is assessed a special benefit in an amount greater than it will be actually benefited by the proposed improvement, the court shall so find and shall also find what the proper award or assessment shall be, and judgment shall be rendered accordingly. The court, for good cause shown, may modify, alter, change, annul, or confirm the report of the commissioners, or any part thereof, or may order a new appraisement and assessment as to any of the property affected in the proceeding by the same commissioners or by other commissioners appointed by the court.
C.R.S. § 38-6-112