Highway Designation File

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


Certified Mileage (Open to Traffic)
114.58 2010

FARM TO MARKET ROAD NO. 170

Minute Order 021215, dated 06/11/1945 (date of agreement)

From US 67 at Presidio toward Ochoa, a distance of 5.0 miles. New Designation.



Minute Order 026099, dated 12/16/1948

From US 67 at Presidio northwest approximately 18.9 miles to Adobes and from Presidio southeastward approximately 6.3 miles to a road intersection south of Alamito Creek, a total distance of approximately 25.2 miles. (Presidio County)  Extended southeastward to near Alamito Creek (6.3 miles) and extended northwestward to Adobes (13.9 miles).



Minute Order 027145, dated 07/15/1949

From US 67 at Presidio northwest approximately 18.9 miles to Adobes, and from Presidio southeast to Redford, a total distance of approximately 36.9 miles. (Presidio County)  Extended southeastward to Redford 11.7 miles.



Minute Order 035165, dated 10/29/1953

From US 67 at Presidio northwestward to Pinto Canyon, a distance of approximately 29.3 miles, and from another point on US 67 at Presidio southeastward, a distance of approximately 16.2 miles, a total distance of approximately 45.5 miles. (Presidio County)  Extended northwestward approximately 10.8 miles to Pinto Canyon.



Minute Order 038482, dated 07/28/1955, Adm. Cir., 036-1955, dated 09/15/1955

From US 67 at Presidio northwestward to Pinto Canyon, a distance of approximately 29.0 miles, and from another point on US 67 in Presidio southeastward via Redford, a distance of approxi-mately 21.4 miles, a total distance of approxi-mately 50.4 miles. (Presidio County) (New Description) Extended from Redford southeastward approximately 5.2 miles.



Minute Order 045056 dated 10/31/1958, Adm. Cir., 028-1959, dated 02/15/1959

 From US 67 at Presidio northwestward to Pinto  Canyon a distance of approximately 2.0 miles;  and from another point on US 67 at Presidio southeastward via Redford, a distance of approximately  33.1 miles, a total distance of approximately  62.1 miles. (Presidio County) Extended southeastward approximately 12.0 miles.



Minute Order 047184 dated 02/05/1960, Adm. Auth.,  dated 02/19/1960

From SH 118 near Study Butte westward via Terlingua and northwestward via Redford to US 67 at Presidio; and from another point led on US 67 at Presidio northwestward to Pinto Canyon, a total distance of approximately 98.7 miles. (Brewster and Presidio Counties)  Extended southeastward approximately 19.0 miles to end of RM  2462; FM 2462 canceled and cornbined  adding approximately 19.0 miles.



Minute Order 059598, dated 06/02/1967, Adm. Cir. 068-1967 dated 07/15/1967

From SH 118 near Study Butte westward Terlingua and northwestward via Redford to US 67 at Presidio, northwestward to Ruidosa, a total distance of approximately 104.1 miles. (Brewster and Presidio Counties) (New Description) Extended northwest  approximately 8.5 miles.



Minute Order 078958, dated 10/21/1981, Adm. Ltr., 012-1981 dated 12/15/1981

From SH 118, near Study Butte westward via Terlingua and northwestward via Redford to US 67 in Presidio; and from another point on US 67 in Presidio northwestward via Ruidosa to Candelaria, a total distance of approximately 114.9 miles. (Brewster and Presidio Counties) (New Description)  Extended northward approximately 11.6 miles.



Minute Order 106870, dated 06/18/1996; DesLtr 003-1996, dated 06/26/1996

From SH 118, near Study Butte, westward via Terlingua and northwestward via Redford, Presidio, and Ruidosa to Candelaria, a total distance of approx. 115.0 miles. (Brewster and Presidio Counties)  At District's request,
FM 170 concurrent with BU 67A and US 67 through Presidio to complete routing.