Iowa Code Title VIII. Transportation [Chs. 306-330B] § 314.3. Claims--approval and payment

1. All claims for construction, reconstruction, improvement, repair, or maintenance on any highway shall be itemized on voucher forms prepared for that purpose, certified to by the claimants and by the engineer in charge, and then forwarded to the agency in control of that highway for final audit and approval. Claims payable from the farm-to-market road fund shall be approved by both the board of supervisors and the department. Upon approval by the department of vouchers which are payable from the farm-to-market road fund, or from the primary road fund, as the case may be, such vouchers shall be forwarded to the director of the department of administrative services, who shall draw warrants therefor and said warrants shall be paid by the treasurer of the state from the farm-to-market road fund or from the primary road fund, as the case may be.

2. If the engineer makes such certificate or a member of the agency approves such claim when said work has not been done in accordance with the plans and specifications, and said work be not promptly made good without additional cost, the engineer or member shall be liable on the person's bond for the amount of such claim.