Tex. Transportation Code § 365.038: COUNTY PAYMENTS RELATING TO DISTRICT BONDS.

(a) A county in which a district is located may pay:

(1) part of the principal or redemption price of or interest on the district's bonds; or

(2) the cost of operating or maintaining the district's toll road project.

(b) The county may establish or maintain a reserve fund or a depreciation and replacement fund for the district's bonds or toll road project as a supplement to the district's pledge of revenue for those purposes or instead of a pledge of the district's revenue or taxes.

Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.