Highway Designation File

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


Certified Mileage (Open to Traffic)
31.14 2010

STATE HIGHWAY NO. 99

Minute Order 048678, dated 10/29/1960; Adm. Cir. 181-1960, dated 12/01/1960

From Texas/Oklahoma State Line via Whitesboro and Pilot Point to Denton. New designation; SH 10 changed to SH 99 to match Oklahoma SH 99 at the State Line.



Minute Order 060823, dated 04/29/1968; AASHTO Ltr. dated 06/28/1968; Adm. Cir. 059-1968, dated 07/15/1968

Cancelled.  Redesignated as US 377; signing effective 01/01/1969.



Minute Order 082325, dated 10/25/1984; Adm. Ltr. 012-1984, dated 12/14/1984

From SH 146 near Texas City westward, northward, eastward, and southward to SL 330 in Baytown, a total approximate distance of 164.0 miles.  (Brazoria, Fort Bend, Galveston, Chambers, Harris, and Montgomery Counties)  New Designation.



 Minute Order 108857, dated 03/28/2002; DesLtr 1-2002, dated 04/05/2002

From SH 146 near Texas City westward, northward, eastward, and southward to BS 146-E in Baytown, a total distance of approximately 166.9 miles.  (Harris and Chambers Counties)  (New Description)  At Districtís request, SS 55 redesignated as SH 99.