*swale*
The finish grade is contoured to collect surface water and divert the water away from structures or assist with the positive drainage through lawns and planting beds.
*berms*
Berms are constructed by raising the existing grade to divert surface water away from structures and plantings. Some circumstances require using a berm in conjunction with a catch basin to trap the surface water and divert it into the catch basin.
*timber diversion*
Timber diversions are used when a swale or a berm cannot be constructed to divert surface water.