After many delays, work is now underway to extend the HOV lane on I-45 North from F.M. 1960 to Loop 336 in Conroe. This HOV facility will be two-way and non barrier separated. Some left shoulder work will be done at the Hardy Toll Road, Woodlands Parkway and F.M. 1488 to build the HOV lanes.
http://www.houstonchronicle.com/neighborhood/woodlands/news/article/Construction-finally-getting-underway-on-I-45-6580344.php