(a) If the improvements in the engineer's report are insufficient to reclaim all of the land and other property inside the district, extensive repairs or additions to the improvements are necessary, or additional funds are needed to complete improvements, the board may provide additional funds for the district by following the provisions of this chapter for raising funds.
(b) If the board creates additional indebtedness or issues additional bonds, the indebtedness or bonds are subject to the provisions of this chapter relating to the issuance of bonds.