Reservoirs
The 143 reservoirs or storage ponds, known as Teiche (singular: Teich), were impounded using earth-fill dams.
Dam heights varied between 4.0 and 15.0 metres; impoundment volumes were, on average, about 150,000 cubic metres.

Ditches
The ditches are supply channels almost parallel to the terrain contours, with a very slight incline of around 1-2 per mille and are accompanied by an inspection path.

Tunnels
The underground water tunnels of between 20 and 1000 metres long were the most expensive investments in the Upper Harz Water Regale.
They were worth the cost however because of their low operating costs and high hydraulic capacity.

Special structures
The Sperberhai Dyke is an aqueduct built from 1732 to 1734 with a length of over 900 metres and a height of  16 metres.

The Oderteich differs considerably from the other Upper Harz ponds with regard to its construction materials and dimensions.
Following its completion in 1722 to the start of the modern dam building period in 1892, it was the largest dam in Germany.

In the Polsterberg Pumphouse water could be pumped from the Dam Ditch to a height of 8 metres using hydropower.

The Huttaler Widerwaage is also frequently mentioned in this connexion: it is quite complex and enables water to flow in two different directions.
Reservoirs
The 143 reservoirs or storage ponds, known as Teiche (singular: Teich), were impounded using earth-fill dams. Dam heights varied between 4.0 and 15.0 metres; impoundment volumes were, on average, about 150,000 cubic metres.
Ditches
The ditches are supply channels almost parallel to the terrain contours, with a very slight incline of around 1-2 per mille and are accompanied by an inspection path.
Tunnels
The underground water tunnels of between 20 and 1000 metres long were the most expensive investments in the Upper Harz Water Regale. They were worth the cost however because of their low operating costs and high hydraulic capacity.
Special structures
The Sperberhai Dyke is an aqueduct built from 1732 to 1734 with a length of over 900 metres and a height of  16 metres.
The Oderteich differs considerably from the other Upper Harz ponds with regard to its construction materials and dimensions. Following its completion in 1722 to the start of the modern dam building period in 1892, it was the largest dam in Germany.
In the Polsterberg Pumphouse water could be pumped from the Dam Ditch to a height of 8 metres using hydropower.
The Huttaler Widerwaage is also frequently mentioned in this connexion: it is quite complex and enables water to flow in two different directions.
Upper Harz Water Regale