Highway Designation File

Transportation Planning and Programming Division
Current Description-Effective Date-Authority


Certified Mileage (Open to Traffic)
9.439 2010

FARM TO MARKET ROAD NO. 310

Minute Order 021215, dated 06/18/1945 (date of agreement)

From US 81, 3.0 miles south of Hillsboro to Aquilla (Hill County). New Designation.



Minute Order 041042, dated 11/21/1956, Adm. Cir., 048-1956, dated 12/15/1956

From US 81, 3.0 miles south of Hillsboro, southwestward to FM 1244 in Aquilla, a distance of approximately 11.9 miles. (Hill County)  Extended to FM 1244 at Aquilla, adding approximately 0.1 mile.



Minute Order 042914, dated 10/31/1957, Adm. Cir., 049-1957, dated 12/01/1957

From US 81 approximately 3.0 miles south of Hillsboro, southwestward to FM 1244 in Aquilla with a spur connection of approximately 0.1 mile to FM 1244 at a point approximately 1.0 mile north of Aquilla; a total distance of approximately 12.0 miles. (Hill County)  Spur connection of approximately 0.1 mile added.



Adm. Auth., dated 03/28/1985; Adm. Ltr. 004-1985, dated 04/15/1985

From IH 35, approx. 3.6 miles south of Hillsboro, southwestward via Vaughan and crossing Aquilla Dam to FM 933, a distance of approx. 9.4 miles. (Hill County)  As requested by District, approximately 4.3 miles of FM 310 from FM 933 in Aquilla eastward and northward to FM 3370 and a spur connection from FM 933 eastward to FM 31 transferred to FM 3370.