My first thought when I saw that last photo was "That looks like a CalTrans job!"

(that was a popular line when I worked doing contract archaeology for CalTrans. That's about the right ratio of folks standing around with hands on hips to folks actually working! No offense intended to anyone who works for CalTrans! The joke could just as well to most of the digs I worked on - same ratio of "dig bums" [usually un(der)paid students] to supervisors!)