Bockholmssund

Bockholmssund nedre och övre, svenska obemannade ensfyrar och ledfyr i Mälaren.

Farleden Stockholm - Södertälje: I Bockholmssundet på Arosgrundet. 
Bockholmssund nedre S om farleden, Bockholmssund övre 350 m från föregående. 
Fyrarna är ens i 276,7 grad. Enslinjen leder fritt från vit sektor i fyren Vällinge intill ett avstånd av 300 m från nedre fyren.

Bockholmssund nedre. Foto Ulf Schloss 2017.

Bockholmssund nedre. Foto Ulf Schloss 2017.

Bockholmssund nedre. Foto Johan Fredriksson 2013.

Bockholmssund övre. Foto Johan Fredriksson 2013.

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Fyrplatsen

Nedre: WGS-84 Lat. N 59 16,4. Long. E 17 39,8. Sv. Nr. 370000. Int. Nr. C6716-7

Övre: WGS-84 Lat. N 59 16,4. Long. E 17 39,4. Sv. Nr. 370001. Int. Nr. C6716-8

1883 anlades fyrplatsen Nedre. Veklampa.

1911 fick fyren AGA-ljus med lins av 6:e ordningen.

• Fyrkaraktär: Bx WRG 3s 9M. Lyshöjd: 4 m. Vitt, 6 m högt torn av granit och järn.

• Fyren belyser med blixtsken följande sektorer:

Fyrsken	Gräns	Gräns
Grönt	från land	122
Vitt	122	126,5
Rött	126,5	196
Vitt	196	till land

• Hålles tänd 6 Juli - 6 Juni.

1940 anlades fyrplatsen Övre. AGA-ljus.

1995 fick fyrarna elektriskt ljus med energi från kabel.

Nuvarande utseende:

• Nedre: Vit fyrkur med rött bälte. Fasadbelysning.

• Övre: Fyrlykta och rött fyrkantigt dagmärke med vitt vertikalt band, på vit förrådskur med rött bälte. Fasadbelysning.

Nuvarande karaktär:

• Nedre: Iso WRG 4s 7,0M. Lyshöjd: 4,0 m.

• Övre: Q W 8,2M. Lyshöjd: 10,8 m.

Södertäljeleden Stockholm - Södertälje

Klicka här för att se fyrarna på Södertäljeleden.

Jfr Mälaren, svenskt fyrväsende, Lotsverket, ledfyr