I was driving in northeast Houston today, ( which is an area of town a tourist should avoid ), and the old US Hwy 59, is now marked I-69 north of Loop 610, at least to the northern edge of Harris County.
http://en.wikipedia.org/wiki/Interstate_69 While this is currently totally irrelevant, east Texas cavers will someday ( in 10 years ? ) take I-69 to go caving in Arkansas, Indiana, or to Bustamante, N.L., Mexico. The last time I was south of Houston on Hwy. 59, the signs still read "Future I-69" I am not aware of any ongoing highway construction anywhere along this route. I have not been to Laredo in a year, but I bet very soon, you will see signage or new roads related to Interstate 69. David Locklear Ref: http://www.i69texasalliance.com/news.html