The food groups are carbohydrates, fats, protein, water, vitamins, minerals and fibre Fruits, vegetalbes, grains, dairy and protein foods are the   5 food groups.They pro â¦ vide the nutritional building blocks to  optimal health.3 people found this useful.here are only four different food groups; therefore, the maximum number of food groups you can have in your dish/meal is four. Now try to think of a dish that contains all of â¦ the groups: grain product, vegetables and fruits, milk and alternatives, and meat and alternatives.
Dworshak Dam is a concrete gravity dam with a sloped downstream face and vertical upstream face, standing 717 feet (219 m) high from the foundations, 632 feet (193 m) above the riverbed and measuring 3,287 feet (1,002 m) long along its crest.
The key trench is incorporated in the design for two reasons: to anchor the dam to the base material and to prevent piping (seepage under the fill). The key trench should be a minimum of three feet deep for a dam the height of 10 to 12 feet. It should extend the full length of the dam and reach one third to one half of the way up the side slope of the draw. The dam must be constructed from an impervious (clay or clay-based) material.