For wht it is worth:I do not know about Oct 2010, but in April 2010 the morning session was in this order construction, geotech, structural, transportation, and finally Water Resources & Environment. Eight questions in each module.
I believe it was that way in Oct 2009, because I did poorly in the last two modules Trans & WR&E, when I ran out of time. Definitely a poor strategy that time. I was methodically slow and failed that time.
I believe you should read or at least all the questions before first to find the ones that are easier for you.