(a) The executive director shall inspect the construction of a levee or other improvement once every 60 days after the construction work has commenced, and if he finds that the work has been done in strict accordance with the contract, the executive director shall certify this fact, and his certificate shall give a full description of the work done up to the date of inspection.
(b) If the executive director finds that the work has not been done in strict accordance with the contract, he shall officially certify this fact, and in the certificate he shall state where the contractor has failed to comply with the contract.