Open air, piled storage
Useful for short term storage but not a good solution long term – too hard to keep feed dry and rates of loss due to wind is high.
Low cost bunkers
Low cost bunkers can be made cheaply from square straw bales or wooden sleepers. Contamination can occur with stones and soil if feed is loaded directly onto dirt.
Cement bunkers are the most expensive option but minimise wastage, and if designed well, drain well. Adjacent bunkers reduce the number of walls required.
Soil ramps next to the bunker aids discharge from trucks. Ensure floor slope aids drainage.
Bunker roofs should be high enough to allow sufficient working space for front end loaders and for unloading semi-trailers. Eaves could be considered to provide protection from rain.
Bunker dimensions for storing semi-trailer delivery loads
|Dept||Width||Wall height||Wall thinkness||Concrete apron|
|6 – 10 m||4 – 6 m||1.5 – 2.5 m||150 – 200 mm||5 – 7 m in front of each bunker|