Bostalsee

Bostalsee
	Bostalsee (older photo, still without the Center Parc, which was built in the meantime)
Location:	District of Sankt Wendel
Tributaries:	Bos , Demelbach
Larger places on the shore:	Bosen , Gonnesweiler
	Saarland , Germany
Coordinates	49 ° 34 ′ 6 ″ N , 7 ° 4 ′ 19 ″ E Coordinates: 49 ° 34 ′ 6 ″ N , 7 ° 4 ′ 19 ″ E
	Data on the structure
Construction time:	approx. 1973-1975
Height above valley floor:	approx. 20 m
Height above foundation level :	22.25 m
Height of the structure crown:	402.75 m
Building volume:	320,000 m³
Crown length:	500 m
Crown width:	5 m
Slope slope on the air side :	1: 2
Slope slope on the water side :	1: 2
	Data on the reservoir
Altitude (at congestion destination )	401.00 m or 400.00 m (permanent traffic jam)
Water surface	120 ha or 107 ha (permanent traffic jam)
Storage space	8 million m³
Catchment area	12.2 km²
Design flood :	35 m³ / s

The Bostalsee is a reservoir in the municipality of Nohfelden in northern Saarland , which was dammed in 1979. The dam has a length of 500 m. The lake is almost exclusively used for leisure purposes. The dammed hydropower has been used to a small extent to generate electricity since the end of 2013, mainly to illuminate the circular hiking trail around the lake in the winter months. The south-western part of the lake is designated as a nature reserve.

Emergence

The major touristic project was initiated in the early 1970s by the then district administrator of the St. Wendel district, who later became Prime Minister Werner Zeyer . The long-term perspective was to use the lake to strengthen the tourist infrastructure of the St. Wendel district and to increase the number of visitors. Furthermore, the new water surface should contribute to the expansion of the local recreation facilities and to the improvement of the ecological conditions.

Basic data

With a surface area of 120 ha (1.2 km²), a water volume of 8 million m³ and a maximum water depth of 18 m, the lake is approx. 400 m above sea level. NN in the Saar-Hunsrück at 49 ° 34 ' N , 7 ° 4' O . This makes it the largest artificial recreational lake in southwest Germany. The villages of Bosen , Eckelhausen , Gonnesweiler and Neunkirchen / Nahe in the district of Sankt Wendel , which is also the operator of the Bostalsee leisure center, are located on the lake . The dammed waters are the Bos and the Demelbach. 49.568333333333 7.0719444444444 400

The top meter of the storage space is the flood protection area . The permanent storage target is 400 m above sea level, the overflow at 401 m and the extraordinary storage target at high water at 401.75 m above sea level. From October 2007, extensive repairs were carried out on the dam. In March 2009 the lake went back into operation. The promenade was opened again in August 2009.

Environment - infrastructure

A 6.8 km long hiking trail and a 7.2 km long cycle path lead around the lake, which complement the tourist offer of the leisure center with camping , sailing , fishing , surfing , pedal boating , ice skating , beach volleyball and a lido. The operation of motor boats (with the exception of a few electric boats and motor boats for water rescue ) is prohibited on the lake. The lake is the end of the street of the sculptures, which begins in St. Wendel . The closest town is St. Wendel.

The indoor wave pool "Bosaarium", built in 1979, was converted into an event hall in 2004. Since November 26, 2011 there is an indoor playground in the hall.

Holiday park

The French company Pierre et Vacances , together with its subsidiary Center Parcs and in cooperation with various public authorities, built a holiday park on the lakeshore between Gonnesweiler and Eckelhausen. Initially, the park was to be marketed under the “Sunpark” label. When construction began in spring 2011, it became known that the holiday park would be called “Center Parcs - Park Bostalsee”. The park was opened in July 2013 and consists of 500 holiday homes in six villages and a central unit with a tropical adventure pool. Around 130 million euros were invested in this, the largest tourism building project to date in the south-west, with Saarland pre-financing part of this sum as part of the public-private partnership. These funds are to be repaid through corresponding long-term leases with Center Parcs. A total of around 300 jobs have been created.