Highway Designation File

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


Certified Mileage (Open to Traffic)
1.63 2010

FARM TO MARKET ROAD NO. 2170

Minute Order 035034, dated 10/28/1953

From SH 121 southeastward to US 75 near Allen, a distance of approximately 4.3 miles.  (Collin County) New Designation.



Minute Order 036937, dated 10/26/1954; Adm. Cir. 050-1954, dated 12/01/1954

From SH 121 southwest of McKinney, southeastward via Allen to a road intersection at Parker, a distance of approximately 9.8 miles.  (Collin County)  Extended southeastward approx. 5.5 miles from US 75 near Allen to Parker.



Adm. Auth., dated 09/01/1955; Adm. Cir. 036-1955, dated 09/15/1955

From the new location of US 75 in the southwest part of Allen, eastward and southward to a road intersection at Parker, a distance of approximately 6.6 miles.  (Collin County)  Modified to delete 4.3-mile section, from SH 121 southward to present US 75, east of Allen, 2.3 miles of which is relocated and assigned FM 2319; extended westward from present US 75 to the new location of US 75 in Allen, an increase of approx. 1.1 miles; net decrease in length, 3.2 miles.



Minute Order 044997, dated 10/31/1958; Adm. Auth., dated 12/16/1958; Adm. Cir. 008-1959, dated 01/01/1959

From new location of US 75 in the southwest part of Allen, eastward to FM 1378, a distance of approximately 4.9 miles.  (Collin County) Approx. 1.5 miles of new designation, from approx. 3.4 miles east of US 75 to FM 1378, added to this FM; existing section from approx. 3.4 miles east of US 75,southward to near Parker transferred to FM 2551, a decrease of approx. 3.2 miles, a net decrease of approx. 1.7 miles.



Minute Order 053126, dated 06/28/1963; Adm. Cir. 125-1963, dated 09/01/1963

From FM 2478 north of Bethany, eastward via Allen to FM 1378, a distance of approx. 8.3 miles.  (Collin County)  Extended westward approx. 3.3 miles to FM 2478.



Minute Order 090901, dated 10/25/1990; Adm. Ltr. 002-1991, dated 03/25/1991

From FM 1378 northwest of Lucas, westward via Allen to Custer Rd, a distance of approximately 8.8 miles.  (Collin County)  New description; redescribed due to change in routing.  In Allen, FM 2170 extends westward from its present junction on Main St along McDermott Dr to its junction at Allen St and its present location.



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

Cancelled.  (Collin County)  Mileage transferred to UR 2170.