watariyagura　渡櫓
KEY WORD :　architecture / castles
　
1　A connecting gallery or tower inside a square compound *masugata 桝形, of an Edo period castle entrance. The gallery forms a bridge linking two stone walls, *ishigaki 石垣. The watariyagura usually has hongawara style roof *hongawarabuki 本瓦葺, of alternately overlapping flat and round tiles, is single story in height and is fitted with gun ports *teppousama 鉄砲狭間. Representative examples of watariyagura include Matsumotojou *Tenshu 松本城 天守 watariyagura in Nagano prefecture; Himejijou 姫路城 numerous watariyagura in Hyougo prefecture (both one story and two story examples including notably "Yo" watariyagura that is 84m in length), and Takamatsujou Kita-no-maru 高松城北の丸 single-roof watariyagura in Kagawa prefecture. See *yaguramon 櫓門.

2　Also called *tamon 多聞, *nagaya 長屋. A long connecting gallery or enclosed connecting corridor in an Edo period castle. Built along the top of a stone wall or embankment, the watariyagura links two towers, a tower and a donjon, or a large donjon with a small one.

3　A structure used in a provision medieval fortification. A long walkway was constructed of wooden planks, parallel to the battle line. Soldiers would fire arrows from this walkway.
　
Matsumotojou 松本城 (Nagano)
1）　Matsumotojou 松本城 (Nagano)

　
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