Bogging and/or wheel ruts can be a significant problem. New installations should be fitted with a “dry-wheel pack” (half-throw sprinklers on solid drops or boombacks) to keep water off the wheel track; old systems can be retro-fitted.
To avoid the formation of wheel ruts, wheel tracks should be built up and compacted during installation of the system to prevent water from ponding on the tracks. Regular maintenance of the tracks is recommended to avoid ruts developing. For more details see the DPI Agnote “Centre Pivot Wheel Rutting”.
Centre pivot tower on a gravelled track - note the boombacks each side for travel in both directions
Half-throw sprinklers help keep water off the wheel track