For the purpose of defraying, in part the cost of making an improvement under the provisions of this Act, the board of park commissioners is authorized and empowered to accept and use any funds made available for the purpose as follows:
In this event, the board of park commissioners may enter into agreements with any such governmental agency making such appropriation for the purpose of setting forth the financial arrangements under which the funds are to be turned over to the park district. Any funds received by the park district under the provisions of this section shall be in addition to the funds derived from the sale of bonds as hereinafter provided, and the fact that the park district receives funds from any such governmental agency shall in no way diminish the amount of bonds which the park district may issue and sell under the provisions of this Act.
70 ILCS 1310/4