charge and management thereof, and shall have the power to employ such assistance as they may deem necessary and purchase all materials that may be necessary in the con struction and carrying on of the work of said improvement, and shall have power to let the whole or any portion of said work to any responsible contractor, and shall in such case enter into all necessary agreements with such contrac tor that may be necessary in the premises: Provided, That in case the whole or any portion of said improvements is let to any contractor said commissioners shall require said contractor to give a bond in double the amount of the contract price of the whole or of such portion of said works covered by said contract, with two or more sureties to be approved by the board of commissioners of said drainage district and running to said district as obligee therein, conditioned for the faithful and accurate performance of said contract by said contractor, his executors, administrators or assigns, according to the terms and conditions of said. agreement, and shall cause said contractor to enter into a further additional bond in the same amount, with two or more good and sufficient sureties to be approved by said board of commissioners of said drainage district in the name of said district as obligee therein, conditioned that said contractor, his executors, administrators or assigns, performing the whole or any portion of said work under contract of said original contractor, shall pay or cause to be paid all just claims for all persons performing labor or rendering services in the construction of said work, or furnishing materials, merchandise or provisions of any kind or character used by said contractor or sub-contractor, or any employee thereof in the construction of said improvement: Provided further, That no sureties on said last mentioned bond shall be liable thereon unless the persons or corporation performing said labor and furnishing said materials, goods, wares, merchandise and provisions, shall, within ninety days after the completion of said improvement, file their claim, duly verified, that the amount is just and due and remains unpaid, with the board of commissioners of said drainage district.

SEC. 19. The work on said improvement shall begin at the outlet thereof, and shall be completed toward the terminus of said system and shall be completed toward said terminus with all expedition possible, and said board of

commissioners of such drainage district, or any contractor thereunder, shall have no power whatever to change said route or system of improvement or the manner of doing the work therein so as to make any radical changes in said improvement, without the written consent of all the land owners to be benefited thereby, and the land owners which may be damaged thereby, and in case any substantial changes in said system of improvement or the manner of the construction thereof shall be deemed necessary by said board of commissioners at any time during the progress thereof, and if the written consent to such changes can not be procured from said land owners, then said commissioners for and on behalf of said district shall file a petition in the district court of the county within which said district is located, setting forth therein the changes which they deem necessary to be made in the plan or manner of the construction of said improvement, and praying therein to be permitted to make such changes, and upon the filing thereof the court shall cause a summons to be served, setting forth the prayer of said petition under the seal of said court which summons shall be served in the same manner as the service of summons in the case of the original petition, upon all the land owners or others claiming any lien or interest therein appearing of record in said district and any or all of said parties so served may appear in said cause and submit their objections thereto, and after the time for the appearance of all of said parties has expired the court shall proceed to hear said petition at once without further delay, and if it appears during the course of said proceedings that the property rights of any of said land owners will be affected by such proposed change in said improvements, then the court, after having passed upon all preliminary questions as in the original proceedings, may call a jury to be impanelled as in the case of the original proceedings for the establishment of said improvement, and upon the final hearing of said cause the jury shall return a verdict finding the amount of damages if any, sus tained by all persons and corporations, the same as upon the original petition by reason of such proposed change and the amount of compensation to be paid to any persons or corporations therefor and for any additional right-ofway that may be necessary to be appropriated.

SEC. 20. During the construction of said improvement

said commissioners shall have the right to allow payment thereof, in installments as the work progresses, in proportion to the amount of work completed: Provided, That no allowance or payment shall be made for said work to any contractor or sub-contractor to exceed seventy-five per cent of the proportionate amount of the work completed by such contractor or sub-contractor and twenty-five per cent of the contract price shall be reserved at all times by said board of commissioners until said work is wholly completed and shall not be paid upon the completion of said work until ninety days have expired for the presentation of all claims for labor performed and materials, goods, wares, merchandise, and provisions furnished or used in the construction of said improvements; and upon the completion of said work and the payment of all claims hereinbefore provided for according to the terms and conditions of said contract. Said commissioners shall accept said improvement and pay the contract price therefor.

SEC. 21. Any person or corporation owning land within said district shall have a right to connect any private drains or ditches for the proper drainage of such land with said system, and in case any person or corporations shall desire to drain such lands into said system and shall find it necessary, in order to do so, to procure the right-of-way over the land of another, or others, and if consent thereto can not be procured from such person or persons, then such land owner may present in writing or request to the board of commissioners of said district, setting forth therein the necessity of being able to connect his private drainage with said system, and pray therein that said system be extended to such point as he may designate in said writ ing and immediately thereon said board of commissioners shall cause a petition to be filed in the district court, for and in the name of said drainage district, requesting in said petition that said system be extended as requested, setting forth therein the necessity thereof and praying that leave be granted by the board to extend the system in accordance with the prayer of said petition, and the proceedings in such case, upon the presentation of such petition and the hearing thereof, shall be, in all matters, the same as in the hearing and presentation of the original petition for the establishment of the original system of drainage in said district, as far as applicable. That the costs in such pro

ceedings shall be paid from the assessment of benefits to be made on the lands of the person or persons benefited by such extension and the assessment and compensation for the right-of-way, damages and benefits, and payment of damages and compensation, and the collection of the assessments for benefits, shall be the same as in the proceedings under the original petition and the construction of the said extension shall be made under the same provisions as the construction of the original improvement; and all things that may be done or performed in connection there with shall be, as near as may be applicable, in accordance with the provisions already set forth herein for the establishment and construction of said original improvement: Provided, That such petitioner or petitioners shall, at the time of filing such petition by said drainage commissioners enter into a good and sufficient bond to said drainage district in the full penal sum of five hundred dollars, with two or more sureties, to be approved by the court, conditioned for the payment of all costs in case the prayer of said petition should not be granted, which bond shall be filed in said cause.

SEC. 22. In case of the establishment of a drainage district and system of drainage under the provisions of this act above any other district that may theretofore been established and above any other system of drainage that may have theretofore been constructed in said district, and in case said district to be established above may desire to connect its drainage system with the lower or servient district, shall be made a party to the proceedings for the establishment of such system, and the petition to be filed in the district court for the establishment of the system of drainage in said upper district shall, in addition to the facts hereinbefore provided and required to be set forth therein, set forth the fact that said lower system in said lower district is necessary to be used as an outlet for the system of drainage of said upper district, and that the same will be a sufficient outlet and will afford sufficient capacity to carry the drainage of both said upper and lower districts; and in case said system of said lower district will be required to be enlarged by widening or deepening the same, or both, in order to give sufficient outlet to said upper district and afford sufficient drainage for said upper and lower districts, then the plans and specifications for enlarging the

system of said lower district shall be filed with said petition in addition to the other data herein before provided for in this act. All the land owners in said lower district, or any person claiming any interest therein as mortgagee or otherwise, shall be made parties defendant in said petition, and the proceedings therein as to the assessment of damages and compensation for land taken, if any be neces sary to be taken in enlarging said lower system, shall be the same as in the establishment of systems of drainage in the lower or servient district as hereinbefore provided for; but the jury, in addition to the facts to be found by them as provided for in the establishment of a drainage system in the lower district, shall find and determine whether said lower system, when improved according to the plans and specifications filed with the said petition, will afford sufficient drainage for both said upper and lower districts, which finding shall be made by the jury before considering any other question at issue in said proceeding and in case said jury should find that the system of said lower district when improved as proposed in said petition would not be sufficient, then, in that case, said finding shall terminate the proceedings in said case shall be had, and the costs of said proceeding shall be paid as costs in other proceedings, as hereinbefore provided for; but in such case the finding of said jury shall not terminate the objects of said upper district or operate to disorganize the same, but said upper district may begin new proceedings for the establishment of a system of drainage with some new outlet provided therein. All costs for the enlarging or improving of said lower system that may be required shall be assessed to the land owners in the upper district according to the benefits to be derived from the construction of said entire system, and no additional cost shall be thrown upon the lower district and all compensation for taking any right-of-way that may be necessary to be taken in enlarging said lower system, and all damages occurring therefrom, if any, to the land owners of said lower district, shall be ascertained and paid in the same manner as hereinbefore provided for the adjustment of compensation and damages in the establishment of drainage system in lower districts. Said lower district, by and through its board of commissioners, may appear in said cause and show therein any injury it may sustain as a district by reason of the additional cost of