Colo. Rev. Stat. § 37-32-104
(1) If the plan of composition approved by the United States district court provides for the issuance of new bonds of such district and deposit thereof with such court, or such agency as it may appoint for the purpose, for the delivery of such new bonds to the creditors of the district in exchange for outstanding evidences of indebtedness of the district, such new bonds may be issued:
(b) In the case of a drainage district, either:
Source: L. 39: p. 445, § 3. CSA: C. 57, § 197. CRS 53: § 47-13-3. C.R.S. 1963: § 47-13-3.