An object of the present invention can be easily regulation of water level in the paddy field, less susceptible to frost damage, made-to-order dimensions It is possible, to provide Jin water depth control squares of reusable during disposal after the service life farmland. A flooded water depth control mass, with comprises a the bottom plate 1E and the back plate 1B and a pair of side plates 1C1,1C2, front opening side edge of the left and right opening vital the front 1A 1A1,1A2 drain outlet but that a housing which is inclined to the rear side toward the upper side, a pair of cover receiving portion 1F1,1F2 of consecutively installed to the L-shaped cross section along the lateral front opening side edge, disposed in the housing Synthesis having a 1H, with mass body 1 made of a metal having a are arranged so as to cover the opening of the square main body part and is supported by a pair of cover receiving portion, and a top cover plate 2A and the lower cover plate 2B It equipped with a lid 2 made of resin. The top cover plate is slid so as to overlap the rear surface side of the lower cover plate to regulate the water level in the paddy field.BACKGROUND 1【課題】水田の水位の調節が容易にでき、凍害を受けにくく、寸法のオーダーメイドが可能であり、耐用年数後の廃棄時に再利用が可能な農地の湛水深制御枡を提供する。【解決手段】湛水深制御枡は、底面板1Eと背面板1Bと一対の側面板1C1,1C2とを具備するとともに、正面1Aが開口しかつ左右の正面開口側縁1A1,1A2が上方に向かって背面側に傾斜する筐体と、左右の正面開口側縁に沿って連設された断面L字状の一対の蓋受け部1F1,1F2と、筐体に設けられた排水口1Hと、を有する金属製の枡本体1と、枡本体の開口を部分的に覆うように配置されかつ一対の蓋受け部により支持される、上蓋板2Aと下蓋板2Bとを有する合成樹脂製の蓋部2、を備える。上蓋板を下蓋板の裏面側に重なるようにスライドさせて水田の水位を調節する。【選択図】図1
