(a) Farm-to-Market Road 68 in Fannin County is designated as Speaker Jimmy Turman Road.
(b) The department shall design and construct markers indicating the road number, the designation as Speaker Jimmy Turman Road, and any other appropriate information.

(c) Except as provided by Subsection (d), the department shall erect a marker at each end of the road and at appropriate intermediate sites along the road.
(d) The department is not required to design, construct, or erect a marker required by this section unless a grant or donation of private funds is made to the department to cover the cost of the design, construction, and erection of the marker.
(e) Money received under Subsection (d) shall be deposited to the credit of the state highway fund.