Water (Flowing)

*For other uses of water, see Water (disambiguation).*

 **Flowing Water** is the physical water body that is present on the map and is produced by a  Water Source.

Flowing waters' strength is measured in cms (cubic meters per second). It takes 2 seconds for a current of 1 cms to fill up a single block with water, because water simulation runs at 0.5x speed. This means it takes 2 seconds for 1 "water second" to pass.

Water can freely flow between tiles where there's a difference in the height of the water. When water passes a waterfall (a difference of +0.5 height) the water flows' strength is limited to 2.2 cms. Water flow calculations are applied only on the top level of the water.

Water current and strength is essential for creating power with water wheels. The current's strength can usually be strengthened by narrowing the water's path with dams and/or other structures that block water. A  Stream Gauge can be placed in the water to measure the current depth, maximum depth, and flow rate.

The maximum flow for a canal with 1-tile height and width is about 6.6 cms, so its three times as big as for a waterfall. Therfore if the canal ends in a waterfall, the width of the canal/waterfall has to widen up to prevent backwater. The flow of a canal is (unlike a waterfall) linear to width AND depth of the canal so doubling the height/depth doubles the maximum flow. A 1 m wide and 3 m deep canal can have a maximum flow of 18,8 cms and therfore needs to end in a waterfall that is at least 9 m wide.

Water Pumps can be used to extract and purify  water resource from flowing water.

## Evaporation

Water has a constant evaporation rate of 0.045 meters per day regardless of the  weather. A full, non-flowing block of water will take just over 22 days to completely evaporate, if there are no water pumps. The evaporation is calculated only on the top level of a tile. This means that when storing water on reservoirs it might be a good idea to go for depth rather than more area so the water loss due to evaporation is not as severe.

## Storage

Water can be stored inside tanks or as is on the map by using dams, levees and other landscaping tools. Advantage of the tanks is that is stores straight drinkable water and can be close inside your district. Natural reservoirs on the other hand can store much larger quantities and can be built away from the districts.

1 full block of water will provide 5 units of drinkable water, and each beaver will need 2-3 units per day. This means that a small tank with a capacity of 30 can store water equal to 6 full blocks of water. Similarly a medium tank with a capacity of 300 can hold up to 60 full blocks of water. Added benefit of the water tanks is that they do not suffer from evaporation.

## Irrigation

Water irrigates soil, allowing Crops and Trees to grow, and  Ruins to have vines grown on it.

Water creates irrigated soil nearby. The distance of irrigated soil from the water depends on the relative height of the land next to it.

A **watered block** is a block that is in direct contact with water, either below it or directly touching it on the side. From that watered block, soil at the same height will be irrigated up to 15 blocks away in any direction.

Each difference in height from the **watered block** subtracts from the distance of 15. If on top of the watered block, the irrigated distance is reduced by 6. If separate, the distance is reduced by 7.

The first block after the **watered block** can be at any height **below** its height without affecting the irrigation distance.