Colo. Rev. Stat. § 29-4-302
It is determined and declared that there exist within the state of Colorado substandard and unsanitary areas, occasioned by inadequate planning, excessive land coverage, lack of proper light, air, and open space, defective design and arrangement of buildings, lack of proper sanitary facilities, and the existence of buildings, which, by reason of age, obsolescence, or physical deterioration, have become economic and social liabilities; that such conditions are conducive to ill health, transmission of disease, infant mortality, juvenile delinquency, and crime; and that such conditions impair the economic value of wide areas, infecting them with economic blight which results in inability to pay reasonable taxes. It is hereby declared that the remedying of such conditions is in the public interest, and this part 3 is enacted to provide means whereby said areas may be redeveloped by private enterprise with such assistance from public funds as may be furnished in accordance with the provisions of this part 3.
C.R.S. § 29-4-302