Uldalsåna
Encyclopedia
Uldalsåna is a lake
in the municipalities of Birkenes
and Froland
in Aust-Agder
county, Norway
. It is part of the Tovdalselva
river drainage basin
. On the southeastern end of the lake, there is a hydroelectric
dam
which releases water into the waterfall, Hanefoss, on its way down to the Herefossfjorden
near the village of Herefoss
.
Lake
A lake is a body of relatively still fresh or salt water of considerable size, localized in a basin, that is surrounded by land. Lakes are inland and not part of the ocean and therefore are distinct from lagoons, and are larger and deeper than ponds. Lakes can be contrasted with rivers or streams,...
in the municipalities of Birkenes
Birkenes
Birkenes is a municipality in Aust-Agder county, Norway. It is located in the traditional district of Sørlandet. The village of Birkeland is the administrative center and about half of the municipality's residents live there...
and Froland
Froland
Froland is a municipality in Aust-Agder county, Norway. It is part of the traditional region of Sørlandet. The administrative center is the village of Blakstad, which along with Osedalen form the main population center of the municipality....
in Aust-Agder
Aust-Agder
is a county in Norway, bordering Telemark, Rogaland, and Vest-Agder. In 2002, there were 102,945 inhabitants, which is 2.2% of the total population in Norway. Its area is . The administrative center of the county is in Arendal....
county, Norway
Norway
Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...
. It is part of the Tovdalselva
Tovdalselva
Tovdalselva or Topdalselva is long and is one of the longest rivers in Southern Norway. The river flows from the northeast to the southwest and reaches the sea at the Topdalsfjorden between Hamresanden and Kjevik...
river drainage basin
Drainage basin
A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...
. On the southeastern end of the lake, there is a hydroelectric
Hydroelectricity
Hydroelectricity is the term referring to electricity generated by hydropower; the production of electrical power through the use of the gravitational force of falling or flowing water. It is the most widely used form of renewable energy...
dam
Dam
A dam is a barrier that impounds water or underground streams. Dams generally serve the primary purpose of retaining water, while other structures such as floodgates or levees are used to manage or prevent water flow into specific land regions. Hydropower and pumped-storage hydroelectricity are...
which releases water into the waterfall, Hanefoss, on its way down to the Herefossfjorden
Herefossfjorden
Herefossfjorden is a lake in the municipality of Birkenes in Aust-Agder county, Norway. It is part of the Tovdalselva river. The Gauslåfjorden and Uldalsåna lakes flow into Herefossfjorden near the village of Herefoss. The Uldalsåna lake is held back by a dam and the Gauslåfjorden flows over a...
near the village of Herefoss
Herefoss
Herefoss is a village and former municipality in Aust-Agder county, Norway. It is located in the present-day municipality of Birkenes in the Sørlandet region....
.