Indiana Code Title 36. Local Government § 36-9-27-18

Sec. 18. (a) Whenever all of the owners affected by a private or mutual drain request the board in writing to assume jurisdiction over the private or mutual drain, the board shall refer the request to the county surveyor, who shall determine whether the private or mutual drain meets the standards of design and construction established under section 29 of this chapter.

(b) If the county surveyor determines that the private or mutual drain meets the standards of design and construction, the county surveyor shall make a written report of that fact to the board, which shall issue an order granting the request.  The drain becomes a regulated drain when the request is granted.

(c) If the county surveyor determines that the private or mutual drain does not meet the standards of design and construction, the county surveyor shall make a written report of that fact to the board, which shall deny the request.