The board of trustees may control, supervise, and manage the district. Subject to the legal controls for drainage management under § 46A-10A-20 , the board of trustees may, in conformity with any applicable local, state, and federal laws, rules, ordinances, and regulations: (1) Clean out, repair, and maintain an existing drainage ditch; (2) Deepen, widen, or enlarge a drainage ditch; (3) Create a new drainage ditch, or relocate an existing drainage ditch; (4) Extend an existing drainage ditch; (5) Acquire lands for right-of-way for ditches by purchase or condemnation or any other lawful method in conformity with chapter 21-35 and any other provision of state law; (6) Repair levies, dikes, and barriers for the purpose of drainage; (7) Regulate the flow and direction of water to prevent downstream flooding; (8) Employ or contract with an engineer, hydrologist, surveyor, appraiser, assessor, legal counsel, or any other specialists as they deem necessary to carry out the powers and duties conferred by §§ 46A-10A-98 to 46A-10A-123 , inclusive; (9) Let contracts for construction, maintenance, repair, or other necessary work pursuant to the provisions of chapters 5-18A and 5-18B and §