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

---

Certified Mileage (Open to Traffic)

4.676

2010

FARM TO MARKET ROAD NO. 1778

Minute Order 030961, dated 09/19/1951

From SH 78 at Copeville eastward to a road intersection, a distance of approximately 3.3 miles. (Collin County) New Designation.

---

Minute Order 042992, dated 10/31/1957

From SH 78 at Copeville eastward to FM 547, a distance of approximately 4.8 miles. (Collin County)   Extended eastward approximately 1.6 miles.

---

Minute Order 066444, dated 07/31/1972; Adm. Cir., 101-1972, dated 10/15/1972

From SL 509 (BS 78-F) at Copeville, eastward approximately 4.7 miles to FM 547. (Collin County)  Redescribed due to old location SH 78 being redesignated SL 509.

---