headrace

The dam and headrace are laid out along natural rock formations in the river.

Surge tanks on each headrace tunnel help prevent water hammer.

A concrete headrace delivers water to the turbine pit.

Also on the property are the watercourses, consisting of the headrace, pond, and dam.

The dam is 92 m high and feeds a 22 km-long headrace tunnel.

They are fed by an underground headrace branched off from the canal in front of the northern wing.

The headrace (or water inlet) for the powerhouse and the powerhouse itself are on the north side of the dam.

Also on the property is a contributing 2 1/2-story, stuccoed stone miller's house (c. 1885) the headrace and millpond.

In 1929 Fairbairn donated a cup and the races have continued ever since in their current form, a long distance headrace.

Construction on the headrace tunnels was done by three full-face tunnel boring machines, while remaining areas were drilled and blasted.

In a conventional breastshot design, the water would flow off the edge of the headrace, and fall onto the blades of the wheel.

The major axis of the 5,000 foot diversion dam is north to south and connects to a 3,000 foot headrace which heads southeast.

Shortly after commissioning, Arapuni was closed for two years while a water seepage problem was investigated and the headrace lined.

The property includes a two-story, brownstone and frame sawmill, and a headrace and tailrace.

The power station turbine was run by water supplied from the Inangahua River via two tunnels and a headrace flume.

The headrace tunnel and penstocks were bored through mudstone with the aid of a Robbins Mole.

The water power engine usually had a headrace and a tailrace (Aufschlagrösche and Abzugsrösche).

Each headrace tunnel connects to a steel-lined penstock, each of which later bifurcates into two penstocks.

The intake releases water to three headrace tunnels which transfer into penstocks and supply each of the 190 MW Francis turbine-generators.

At the end of the lower headrace, it converts into four penstocks to supply each of the underground power house's 172 MW Francis turbines with water.

To ensure a steady power supply, water was diverted from Piney Branch into Dogue Run Creek above the mill's headrace.

The concrete dam includes eight bottom outlets, a spillway and four power intakes and conduits, a stilling basin, headrace and tailrace channels.

The two rivers and the reservoir would be connected by a headrace canal, 53 kilometres long, 5 metres deep and 30 metres wide (40-50 metres including embankments).

A launder was placed at the end of the flume on the headrace, this turned the direction of the water without much loss of energy, and the direction of rotation was maintained.

The race bringing water from the mill pond to the water wheel is a headrace; the one carrying water after it has left the wheel is commonly referred to as a tailrace.