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铁山灌区位于洞庭湖水系新墙河中下游的平原丘陵区,以铁山水库为水源。水库建在新墙河南源沙港河中游铁山峡谷,集水面积493km~2,总库容6.35/亿m~3。灌区工程由大坝,溢洪道,小眉连通隧洞,南、北干渠,干渠电站,渡槽以及副坝等组成。大坝系粘土斜墙砂壳坝,最大坝高44.5m。南北渠首电站总装机2400kw,年发电量433万
Tieshan Irrigation District is located in the middle reaches of the lower reaches of the New Wall River in the Dongting Lake plain hilly areas, with Tieshan Reservoir as the water source. The reservoir was built in the middle reaches of Shagang River, New Wall Henan Nanshan Tieshan Gulch, catchment area of 493km ~ 2, the total storage capacity of 6.35 / 100 million m ~ 3. The project of irrigation area is composed of dams, spillways, Xiaomei tunnel, south and north trunk canals, main canal power station, aqueduct and auxiliary dam. Dam system of clay inclined wall sand dam, the maximum dam height 44.5m. North and South Canal Power Station total installed capacity of 2400kw, annual generating capacity of 4.43 million