The Anoka County Board may, by resolution adopted by a four-sevenths vote, issue and sell general obligation bonds of the county in the manner provided in chapter 475 to acquire, better, and construct county library buildings. The bonds shall not be subject to the requirements of sections 475.57 to 475.59. The maturity years and amounts and interest rates of each series of bonds shall be fixed so that the maximum amount of principal and interest to become due in any year, on the bonds of that series and of all outstanding series issued by or for the purposes of libraries, shall not exceed an amount equal to .01 percent of the estimated market value of all taxable property in the county, excluding any taxable property taxed by any city for the support of any free public library. When the tax levy authorized in this section is collected, it shall be appropriated and credited to a debt service fund for the bonds. The tax levy for the debt service fund under section 475.61 shall be reduced by the amount available or reasonably anticipated to be available in the fund to make payments otherwise payable from the levy pursuant to section 475.61.