Indiana Code Title 36. Local Government § 36-9-27-45

Sec. 45.  A maintenance fund established under section 44 of this chapter is subject to the use of the board for the necessary or proper repair, maintenance, study, or evaluation of the particular drain or combination of drains, which may be done whenever the board, upon the recommendation of the county surveyor, finds that it is necessary.  The payment for all such maintenance work shall be made out of the appropriate maintenance fund.  However, if:

the general drain improvement fund shall be used to pay the cost of the work or to pay for the deficiency, and the general drain improvement fund shall be reimbursed from the appropriate maintenance fund when it is established or becomes sufficient.