There is a gravel/dirt road (oogals ford RD or something like that) that goes from the AM/PM-dairy queen intersection in Bonney Lake down to the straight away on the road that passes the BMX track. The people that live on it post a bunch of no trespassing signs but is is an old county right of way, so screw 'em. (don't go too fast on the way down, occationally there is a cable across the road, just go around it, the road does go through)
Most of the development you refered to dumps out onto 410 next to Chevron in Bonney lake the other open outlet is on Angeline.(The rest is under construction)
Then there is Rhodes Lake road going from McMillian or McAlder up to Victorfalls and crater road, (you can cut over to the Albertsons by going passed Bonney lake highschool) it passes by the south end of the development. I would not recommend riding up Rhodes lake road, it is very narrow and twisty, fun going down it though.
Of course there is the South prairie to Bonney lake road if you ride the foothills trail all the way out, but the hill is fairly small on that side and broken into two steps (sprint up each of them).