Links
SH99 Segment Map
SH99 Schedule of Activities (December 2011)
Texas Department of Transporation Commission
TxDOT ROW Manual
City Of Houston Planning
2011 Major Thoroughfare and Freeway Plan
Harris County Major Thoroughfare Map
HGAC 8 County Thoroughfare Maps
Harris County Toll Road Authority
Harris County Flood Control District (HCFCD)
Grand Parkway (SH 99) Environmental Overview
(June, 1993)
1971 Status of Freeway and Parkway System by Houston-Harris County Transportation Study
Please click the icon below to access the corresponding agency’s website