▁Further ▁attempts ▁to ▁d rain ▁the ▁f ens ▁were ▁made ▁in ▁the ▁eigh teenth ▁century , ▁and ▁the ▁first ▁propos als ▁to ▁use ▁the ▁dra ins ▁for ▁navigation ▁were ▁made ▁in ▁ 1 7 7 9 . ▁ ▁Most ▁of ▁the ▁d rain age ▁d itch es ▁that ▁are ▁now ▁evident ▁were ▁constructed ▁under ▁the ▁authority ▁of ▁an ▁Act ▁of ▁Parliament ▁obtained ▁in ▁ 1 8 0 1 . ▁The ▁plans ▁for ▁the ▁scheme ▁were ▁drawn ▁up ▁by ▁the ▁civil ▁engineer ▁John ▁R enn ie . ▁Better ▁d rain age ▁was ▁achieved ▁from ▁the ▁ 1 8 6 0 s , ▁with ▁the ▁building ▁of ▁steam ▁p ump ing ▁stations . ▁The ▁steam ▁engines ▁were ▁later ▁replaced ▁by ▁dies el ▁engines , ▁and ▁now ▁many ▁of ▁them ▁use ▁electric ▁p umps . ▁S ens itive ▁rest oration ▁of ▁some ▁of ▁the ▁p ump ing ▁stations ▁in ▁the ▁ 1 9 8 0 s ▁and ▁ 1 9 9 0 s ▁resulted ▁in ▁the ▁With am ▁Four th ▁District ▁ID B ▁being ▁given ▁a ▁Design ▁Award . ▁ ▁There ▁were ▁originally ▁five ▁lo cks ▁on ▁the ▁system , ▁including ▁Anton ' s ▁G ow t ▁Lock . ▁Cow bridge ▁Lock ▁is ▁the ▁only ▁other ▁one ▁still ▁oper ational . ▁Access ▁by ▁boat ▁to ▁Cow bridge ▁D rain ▁and ▁Hob hole ▁D rain ▁which ▁d rain ▁the ▁East ▁Fen ▁is ▁no ▁longer ▁possible , ▁because ▁East ▁Fen ▁Lock , ▁which ▁connected ▁Cow bridge ▁D rain ▁to ▁the ▁rest ▁of ▁the ▁system ▁has ▁been ▁filled ▁in