Have a say in the future of the Ada County Jail. Take our video tour and Public Survey. Your voice counts. Tax Impact Information: Anticipated interest rate on proposed bond, based upon current market rates, is 3.87% per year. Total amount to be repaid over life of bonds, based on anticipated interest rate, is $71,665,875, consisting of $49,000,000 (principal) and $22,665,875 (interest). Term of bonds will not exceed 20 years from date of issuance. Estimated average annual cost to the taxpayer i