motocross tracks
its not that the tracks are safe or not its how safe you ride the track
Depends on the track, some tracks have a class for pit bikes to race in.
in California one of the best places is in santa Clara
Your local MX bike shops should have lists of local tracks and Races, Dates, and times of races.
Kawasaki
If you have the $ yes
By dirt bike do you mean and enduro bike or a motocross bike or some other bike at all? For any bike except motocross bike you definitely need license, and for motocross bike you don't, because you can't ride it on the streets at all... You can only use it in motocross tracks and for that you need to have a special permit...
Use existing Motocross gates at your local motocross tracks and pictures on the internet as benchmarks. Draw rough hand sketches and write down the dimensions, then go to AutoCAD and draw it. You can build a gate which can be activated using the manual foot drop or the electronic dropping mechanism.
James Stewart.
The Best NON-FREESTYLE motocrosser in England is Zac Osbourne the best motocross rider in the world is Carlos Campano
There arent any public tracks in Va Beach but ECMX (memers only unless race that weekend) is not too far (located in Elizabeth City NC) If you check out D13mx.com and check out the schedule you will see the main tracks in the area.