A bulldozed fenceline is more accessible for construction and future maintenance, as materials and post-driving machinery can be brought in by tractor.
Uneven ground can be smoothed out, reducing the problem of spanning humps and hollows, and enabling regular post spacing.
Soil creep, gradually burying mid-slope fences, can be avoided by forming a clear bench for the fence.
The overall cost is generally less than a hand-built fence, as the machine costs are usually more than offset by savings in time and labour.
Photo below: Fencing at the top of a slope requires less preparation, is more accessible and less costly.
Photo below: This mid-slope fence at the bush edge is vulnerable from soil creep and slippage on the slope above.
The disturbed ground along a newly bulldozed fenceline can be ripe for weed invasion (right next to your covenant) and can be prone to erosion if it slopes steeply.
Sometimes, stock movement along the cleared line prevents pasture from re-establishing and contributes further to erosion.
Photo below: Bare ground along bulldozed fencelines can be erosion-prone on steep slopes and invites weeds.
Open SpaceTM Magazine No. 65, November 2005 © QEII National Trust