安(an)城(cheng)城(cheng)墻系原安(an)吉縣(xian)城(cheng)城(cheng)墻,在今安(an)吉縣(xian)安(an)城(cheng)鎮(zhen),距遞鋪鎮(zhen)8公(gong)里,西苕溪(xi)西岸(an)。四周平地,西1.6公(gong)里有金鐘(zhong)山。
東(dong)漢靈帝中平二(er)(er)年(nian)(185)安吉(ji)立縣(xian)(xian)時,縣(xian)(xian)治設在天目鄉(今孝(xiao)豐鎮)。唐開元(yuan)二(er)(er)十六年(nian)(738)縣(xian)(xian)令孔志道遷(qian)治于(yu)玉磬山東(dong)南(nan)。后(hou)又遷(qian)馬家渡西,即今安城(cheng)鎮地。舊無城(cheng)郭(guo)。元(yuan)末,明兵攻克安吉(ji)、無帥費(fei)愚、總管張俊德于(yu)丙申年(nian)(1356)奉令來戌,始(shi)筑(zhu)土(tu)城(cheng);次(ci)年(nian)重(zhong)砌以石(shi),延伸長度六里,高二(er)(er)丈(zhang)余。門有四(si):東(dong)名迎春、南(nan)曰朝陽,西稱寶(bao)成,北號拱辰。城(cheng)瀕(bin)大溪,引水為濠,鑿濠為池,僅通舟筏。明洪武(wu)五、六年(nian)間(jian)(1372-1373),知(zhi)縣(xian)(xian)張士良(liang)創(chuang)建四(si)城(cheng)譙樓(lou)。嘉(jia)靖三(san)十二(er)(er)年(nian)(1553)知(zhi)州林壁(bi)重(zhong)修,并建譙樓(lou)更(geng)鋪。三(san)十三(san)年(nian)(1554)知(zhi)州江一麟復加高3尺,內土(tu)岸砌石(shi)。嗣后(hou),于(yu)明代天啟年(nian)間(jian),清(qing)代雍(yong)正、乾隆、咸豐年(nian)間(jian)曾(ceng)多次(ci)重(zhong)修。
安(an)城(cheng)城(cheng)墻(qiang)在歷史上不(bu)僅具(ju)有防御功能,而且(qie)發(fa)揮了防洪(hong)(hong)(hong)作用。由于(yu)安(an)城(cheng)緊靠(kao)西苕溪,水(shui)流(liu)湍急(ji),經常發(fa)生洪(hong)(hong)(hong)災。明天(tian)啟三年(nian)(1623)洪(hong)(hong)(hong)水(shui)沖壞東(dong)城(cheng)墻(qiang)二(er)十(shi)四丈并馬路(lu)幫岸;清道光三十(shi)年(nian)(1850)洪(hong)(hong)(hong)水(shui)沖倒(dao)城(cheng)墻(qiang)數十(shi)丈,城(cheng)內(nei)遭殃(yang)。因而歷代(dai)重視(shi)城(cheng)墻(qiang)的維修(xiu),且(qie)在城(cheng)門外邊砌有石質閘槽。南(nan)門閘槽高1.66米,寬9厘(li)米,深(shen)5厘(li)米。以便(bian)洪(hong)(hong)(hong)水(shui)到來之前,上閘板擋住洪(hong)(hong)(hong)水(shui)。
城墻保存基(ji)本(ben)完(wan)整。除(chu)東門(men)(迎春門(men))因修公路(lu)拆除(chu)、北門(men)(拱辰(chen)門(men))頂(ding)部已有一(yi)部分(fen)拆掉(diao)以外,其(qi)它兩門(men)保存基(ji)本(ben)完(wan)好。城門(men)為磚(zhuan)石巷券頂(ding)式。現存城墻高4.5米(mi)左右(you),原(yuan)5米(mi)多。南門(men)內有“乾隆三十三年(nian)夏月署安吉州(zhou)知州(zhou)事(shi)合肥(fei)張先岸監修”碑刻;北門(men)內有“咸(xian)豐元年(nian)知安吉縣(xian)事(shi)長(chang)樂鄭(zheng)廷珪監督紳董(dong)重修”碑刻。