Highway Designation File

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


Certified Mileage (Open to Traffic)
25.568 2010

FARM TO MARKET ROAD NO. 518

Minute Order 021215, dated 06/21/1945 (Date of Agreement)

From US 59 in the south side of Houston, southward to the Brazoria County Line.  New Designation.



Minute Order 021215, dated 07/09/1945 (Date of Agreement)

From US 59 in the south side of Houston, southward and eastward to Pearland (State 35); thence to League City and Kemah (State 146).  (Galveston, Brazoria, and Harris Counties)  Extended from Brazoria County Line to Pearland, League City, and Kemah.



Minute Order 021668, dated 01/18/1946

From junction US 75 at League City to Kemah, and from Galveston County Line via Pearland to junction US 59 near Houston.  (Galveston, Brazoria, and Harris Counties)  Cancel that portion from US 75 westward to Brazoria County Line.



Minute Order 026214, dated 01/27/1949

From US 59 on the south side of Houston, southward and eastward to Pearland, thence via League City to Kemah.  (Galveston, Brazoria, and Harris Counties)  Section from League City to Brazoria County Line added (9.5 miles).



Minute Order 060375, dated 01/16/1968; Adm. Auth., dated 04/01/1968; Adm. Cir. 035-1968, dated 04/01/1968

From US 90A (formerly US 59) in Houston, southward and eastward to Pearland; thence via League City to SH 146, a distance of approximately 33.2 miles.  (Harris, Brazoria, and Galveston Counties)  New description; eastern terminus relocated and 1.3-mile section of FM 1266 transferred to this FM, a net decrease of approx. 0.5 mile.



Adm. Auth., dated 09/13/1984; Adm. Ltr. 010-1984, dated 10/15/1984

From SH 288, approximately 4.9 miles west of Pearland, eastward and southeastward via Friendswood, League City, and Kemah to SH 146, a total distance of approximately 24.0 miles.  (Brazoria and Galveston Counties) New description; approx. 8.3 miles of FM 518, from US 90A southward to junction of FM 518, redesignated as FM 865, as requested by District.



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

Cancelled.  (Brazoria and Galveston Counties)  Mileage transferred to UR 518.