Section 87.07 - Preliminary order(1) SURVEY AND REPORT. If the department's order, made pursuant to s. 87.05, shall direct the hearing to proceed, the department shall at the same time direct its engineering department to make a survey in the form of a preliminary investigation and to file a report:(a) Determining and showing upon a map the lands, whether contiguous or not, which will be benefited by the abatement or substantial diminution of the flood conditions referred to in the petition; defining by legal description each parcel of such lands, other than those owned by public corporations or public service corporations; stating the most recent equalized assessed value of each such parcel of land, and stating the amount of benefit estimated to be derived by each such parcel from the abatement or substantial diminution of such flood conditions;(b) Giving a general description of the real property of any public corporation and the real and personal property of any public service corporation which will be benefited by the abatement or substantial diminution of the flood conditions referred to in the petition; stating the fair value of each parcel of real estate and piece of personal property so described, and determining the amount of benefit estimated to be derived by each of such parcels of real estate and pieces of personal property from the abatement or substantial diminution of such flood conditions; for the purposes of ss. 87.01 to 87.17, streets and highways shall be deemed to be the property of the public corporation which is under legal duty to maintain them;(c) Defining by political subdivisions the drainage area, and stating the most recent equalized assessed value of the real estate in each of the political subdivisions constituting such area;(d) Recommending the means deemed to be the most practical, considering cost and efficiency, for so abating or diminishing the flood conditions referred to in the petition as to effect the public purpose found by the department in its order made pursuant to s. 87.05, and stating the estimated cost of the improvement necessary to put such means into effect.(2) NOTICE OF PRELIMINARY REPORT, HEARING. Upon the filing of such preliminary engineering report with the department, it shall forward a copy thereof to the county clerk of each county in whole or in part within the drainage area as set forth in said report, at least 30 days before the date fixed by the department for further hearing upon the petition. The department shall fix a date for such further hearing and shall publish a class 3 notice thereof, under ch. 985, in each county in whole or in part within the drainage area as set forth in the report, and shall mail a copy of the notice to each party who appeared at the preliminary hearing.(2m) PETITION. At any time prior to the further hearing and final findings upon the several matters covered by said preliminary reports, owners who represent a majority of the lands owned by the original petitioners may file with the department a written petition requesting that no further proceeding be had. Upon receipt of such petition requesting no further proceeding and a determination by the department that same is signed by the required number of property owners, the department shall enter an order dismissing the original petition.(3) HEARING ON REPORT, FINDINGS. (a) At the further hearing held pursuant to the notice under sub. (2), any person interested may appear in person or by attorney and be heard upon the matters covered by the preliminary engineering report, without the filing of any formal pleading on behalf of the person. The department shall make final findings upon the matters covered by the preliminary engineering report, including detailed plans and specifications for the work of constructing the improvement. In determining the estimated cost of the improvement the department shall determine and state separately: 1. The estimated cost of the lands and interest in lands necessary to be acquired for the improvement;2. The estimated aggregate of the contract prices for the construction of the improvement;3. The estimated expense to be incurred during the construction of the improvement for engineering, superintendence, clerical expense and other overhead expenses by the flood control board in charge of the construction; and4. The estimated expense to be incurred by the flood control board for operation and maintenance of the improvement during the first 18 months after its completion.(b) The department shall also find, as to each of the landowners, public corporations and public service corporations owning property to be benefited by the proposed improvement, and as to each parcel of land so benefited, and as to each of the public corporations required by s. 87.10 to contribute toward the cost of each improvement: 1. The maximum amount collectible from the parcel of land, public corporation or public service corporation under the provisions of s. 87.09; and2. The amount actually required to be collected from the public corporation, public service corporation or parcel of land to meet the estimated cost of the improvement, which amount shall be, as to each parcel of land, public corporation and public service corporation, a uniform percentage of the total amount found by the department to be collectible therefrom.(4) BENEFITS AND COSTS DECISIVE. If the aggregate of the amounts collectible, as thus found by the department, exceeds the estimated cost of construction of the improvement, the department shall order that the work of constructing such improvement proceed. If such aggregate amount collectible is less than the estimated cost of such improvement, the department shall enter an order dismissing the petition, unless the difference between said aggregate amounts be deposited in cash with the secretary of administration within one year. Such deposit may be made by any person or any public or private corporation. Upon the making of such deposit, the department shall enter a further order that the work of constructing the improvement proceed.(5) COURT REVIEW. Any such order may be reviewed in the manner provided in ch. 227, except that if any finding as to the amount of benefit to any property shall be challenged upon such review the petitioner shall be entitled to a trial by jury upon demand.