"Too bad it doesn't run to the coast."
Wow. Ignorance is bliss. Here is a link. Houston does seem to be on the coast!
http://www.keeptexasmoving.org/publications/files/ReasonableCorridors_Approved_noPrelim11x17_postPM_150dpi.pdf
Here is an interactive map. A person can smartly turn off different sections. Did you know that Louisiana and Arkansas are also involved? Missisippi is even involved! D@mn that Rick Perry. He even hoodwinked the people in eight other states.
http://www.keeptexasmoving.com/flash/interactive_map/interactive.htm