文档介绍：县**乡**村**山塘整治工程实 施 方 案(规划序号907)...........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................47乡**村**山塘整治工程实施方案山塘基本情况**山塘位于**乡**村。工程兴建于231964年,,,是一座以灌溉为主、兼顾防洪及养殖等综合效益的山塘,山塘枢纽由大坝、坝下涵管、组成。现状大坝为均质土坝,-(本次测量为黄海高程,下同),,,-,上游坝坡坡比1:,下游坝坡坡比1:3。**山塘现状无溢洪道。坝下涵管为直径30cm砼园涵,,进水口底高程 。山塘灌溉面积350亩,受益人口200人。山塘现状