Mo. Rev. Stat. § 249.290
In order to provide a sewer system for the lands and other property and improvements in the district, the board of trustees is hereby authorized and empowered to construct and maintain trunk lines, mains, submains, and lateral sewers, outlets for sewerage and any and all other structures, systems, works and things, and to contract with other districts, municipalities, other public agencies, individuals, copartnerships and corporations for the construction, use or maintenance of common or joint sewers, drains, outlets and disposal plants, and for the use of existing sewer facilities, and to do all things deemed necessary or advisable to make an effective and complete sewer system and to preserve and maintain the same in the district, to construct any and all said works and improvements across, through or over any public highway, railroad, right-of-way, tract, grade, fill or cut, and any other right-of-way or easement in the district; to remove any fence, building or other improvement in the district, and shall have the right to hold, control and acquire by donation or purchase, and if need be, shall have full power to condemn any and all rights or property, either public or private, of every kind and character necessary for the purposes aforesaid, and in so doing, shall follow the procedure taken for telegraph, telephone or railroad rights-of-way. The district shall not be limited to the plan of and the location of the system of sewers set out in the report of the engineer provided in section 249.040, but may include such other and additional work as the board of trustees may deem to be advisable; nor shall the cost of such work be limited to the probable cost of the improvement set out in the engineer's report provided by section 249.040 but may be in excess thereof.
§ 249.290, RSMo