I don't believe they are shutting 45 down on the weekends any more.
That was just to make the tie in's for the new road which will be a jump over to nasa road 1. The jump over is from South of Nasa 1 on 45 ( at Frys) to Nasa 1 north of Hwy 3. Construction is south of Bay area Blvd to the League City exit, I went down there recently and it was pretty smooth
traffic flow, it just slows down a little. Currrently the slowest part is Nasa 1 north of Hwy 3. It's really messed up right now,
Boogie