Designation of roads as part of state highway system. Creation of Developmental Highway System. Council on Rural Transportation and Economic Development; creation and membership; powers, duties, and authority; funding; expense allowances; repeal [Repealed]. Alternative tourism routes; welcome centers authorized. 32-4-67. 32-4-68. 32-4-69. 32-4-70. 32-4-71. 32-4-72. 32-4-73. 32-4-74. form of contracts; approval of contracts by resolution. Contracts with state, state agencies, adjoining counties, and incorporated municipalities of county. Limitations on power to contract; at least two estimates required for certain expenditures. Required letting of contracts by public bid. Advertising for bids. Payment by bidder to cover costs. Proposal guaranty by bidder. Award of contract to lowest reliable bidder; procedure upon rejection of bids. Bonds of successful bidder generally. Bridge repair bonds. Failure to take bonds; liability of county. Failure of successful bidder to sign contract or furnish bonds. Oath by successful bidder. Applicability of other laws to this part. Article 3 Article 4 County Road Systems Municipal Street Systems PART 1 PART 1 GENERAL POWERS AND DUTIES OF COUNTIES GENERAL POWERS AND DUTIES OF MUNICIPALITY 32-4-41.