The district treasurer shall receive and have charge of all moneys raised in the district for the support and maintenance of roads therein, and for road damages except such portions of the moneys which by Section 6-507 are directed to be paid to the municipalities. He shall hold such moneys at all times subject to the order of the highway commissioner and shall pay them over upon the order of the commissioner, such order to be countersigned by the town or district clerk. In counties under township organization such moneys, other than Social Security taxes required by the Social Security Enabling Act, shall not be paid over until the board of town trustees or highway board of auditors, as the case may be, has examined and audited the claims or charges for which such order is drawn. He shall keep an account in a book provided by the commissioner of all moneys received, and all moneys paid out, showing in detail to whom and on what account the same is so paid.
     The treasurer shall also present annually, within 30 days after the end of the fiscal year of the district, to the highway commissioner an itemized statement of receipts and disbursements of the district during the fiscal year just ended, which shall be sworn to.