Highway Designation File

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


Certified Mileage (Open to Traffic)
16.131 2010

FARM TO MARKET ROAD NO. 866

Minute Order 025567, dated 10/29/1948

From US 80 in Duro, north to a junction with SH 302, a distance of approximately 9.8 miles.  (Ector County)  New Designation.



Minute Order 027168, dated 07/15/1949

From US 80, approximately 1.0 mile west of Duro, northward to SH 302, a distance of approximately 10.0 miles.  (Ector County)  Point of beginning changed and 0.2 mile added.



Minute Order 035055, dated 10/28/1953

From US 80 northward to Goldsmith, a distance of approximately 15.5 miles.  (Ector County)  Extended approx. 5.6 miles to Goldsmith.



Minute Order 045540, dated 02/15/1959; Adm. Cir. 056-1959, dated 04/01/1959

From SH 158 at Goldsmith, southward to a county road approximately 0.4 mile south of US 80, a distance of approximately 16.2 miles.  (Ector County)  Northern terminus redescribed as being on SH 158; extended southward approx. 0.4 mile from US 80 to a county road.



Minute Order 105686, dated 06/27/1995; DesLtr 03-1995, dated 06/30/1995

From SH 158 at Goldsmith, southward to SH 302 a distance of approx. 5.506 miles. (Ector County)  Mileage from SH 302, southward to 0.4 mile south of IH 20, transferred to UR 866.