▁and ▁Cl inton . ▁That ▁chain ▁was ▁dis m ant led ▁by ▁the ▁British . ▁ ▁The ▁Great ▁Ch ain ▁remained ▁in ▁place ▁( except ▁during ▁months ▁when ▁ice ▁blocked ▁the ▁river ) ▁from ▁ 1 7 7 8 ▁to ▁ 1 7 8 2 . ▁After ▁the ▁war , ▁Constitution ▁Island ▁returned ▁to ▁civil ian ▁use . ▁ ▁T ade usz ▁Ko ści usz ko ▁along ▁with ▁Thomas ▁Mach in ▁designed ▁a ▁cap stan ▁for ▁re eling ▁in ▁the ▁chain . ▁Kos ci usz ko ▁also ▁added ▁the ▁L anth orn ▁B atter y ▁at ▁Ge e ' s ▁Point ▁and ▁the ▁Kno x ▁B atter y ▁to ▁cover ▁the ▁South ▁D ock . ▁The ▁original ▁iron ▁chain , ▁with ▁one ▁and ▁a ▁half ▁in ch ▁thick ▁links , ▁was ▁replaced ▁in ▁ 1 7 7 8 ▁with ▁links ▁two ▁and ▁a ▁quarter ▁inches ▁thick , ▁which ▁were ▁two ▁feet ▁long ▁and ▁we ighed ▁ 1 4 0 ▁pounds . ▁Made ▁by ▁Peter ▁Town send ' s ▁St ir ling ▁Iron ▁Works ▁in ▁War wick , ▁New ▁York , ▁the ▁ 1 5 0 0 ▁foot ▁long ▁chain ▁we ighed ▁ 1 8 6 ▁tons . ▁Ke pt ▁af loat ▁on ▁huge ▁logs , ▁forty ▁men ▁removed ▁the ▁chain ▁in ▁winter . ▁ ▁Warner ▁House ▁The ▁Warner ▁House ▁as ▁part ▁of ▁the ▁National ▁Historic ▁Land mark ▁of ▁the ▁United ▁States ▁Military ▁Academy , ▁is ▁located ▁on ▁Constitution ▁Island ▁and ▁admin ister ed ▁by ▁the ▁West ▁Point ▁Museum , ▁United ▁States ▁Military ▁Academy