Benten Daiba

Benten Daiba
弁天台場
Benten-Cho, Hakodate, Hokkaido in Japan
Distant view of Benten Daiba, photographed in 1868.
Site information
TypeCoastal Battery
Location
Benten Daiba
Coordinates41°46′24.38″N 140°42′13.00″E / 41.7734389°N 140.7036111°E / 41.7734389; 140.7036111
Area38,300 square meters (after rebuilt)
Height11.2 meters(after rebuilt)
Length712 meters(after rebuilt)
Site history
Built byTokugawa Shogunate desiened: Takeda Ayasaburō
In use1863-1869
Materialsearthworks and stone wall
Demolished1896
Battles/warsHakodate war(the last phase of Boshin War)
Garrison information
Past
commanders
Nagai Genba(永井 玄蕃)

Benten Daiba(弁天台場) was a coastal battery constructed in the late Edo period in what is now Benten-chō(弁天町), Hakodate City, Hokkaido, as one of a group of coastal fortifications built to defend the northern territories of Ezo (modern Hokkaido) against the increasing presence of foreign ships. Initially a small-scale Japanese-style battery, in Bakumatsu(幕末), it was rebuilt as part of coastal defense enhancements following the opening of Hakodate Port to counter foreign vessels entering the port. Subsequently, it became a central component of Hakodate Bay’s defenses and, during the Hakodate War(箱館戦争, Last phase of Boshin War at Oshima peninsula), served as a key defensive facility for the former-shogunate forces(旧幕府軍), engaging in fierce battles with the new government’s naval fleet (see below). It is also known as Benten Misaki Daiba(弁天岬台場), Benten Zaki Daiba(弁天崎台場) . The reconstruction was designed by Takeda Ayasaburō(武田 斐三郎).