1 9 9 2 , ▁the ▁floor ▁hon ors ▁poet ▁Lang ston ▁Hugh es ▁whose ▁as hes ▁are ▁buried ▁in ▁a ▁book - sh aped ▁ur n ▁within ▁the ▁design . ▁The ▁work ▁is ▁called ▁R ivers , ▁in ▁reference ▁to ▁Hugh es ' s ▁poem ▁" The ▁Neg ro ▁Spe aks ▁of ▁R ivers ", ▁and ▁includes ▁visual ▁elements ▁from ▁Y or uba , ▁H ait ian ▁vo od ou , ▁and ▁Christian ▁trad itions . ▁Con will ▁again ▁collabor ated ▁with ▁his ▁sister , ▁Est ella , ▁as ▁well ▁as ▁architect ▁Joseph ▁De ▁P ace . ▁ ▁In ▁ 1 9 8 6 ▁Arc , ▁a ▁large ▁scale ▁installation , ▁was ▁created ▁by ▁Con will ▁for ▁the ▁ 1 6 0 th ▁Street ▁entrance ▁to ▁the ▁York ▁College , ▁C UN Y ▁campus . ▁ ▁Arc ▁has ▁a ▁ 2 6 - foot ▁span , ▁it ▁is ▁composed ▁of ▁met als , ▁commonly ▁known ▁as ▁" A fr ican ▁br ass ", ▁embedded ▁in ▁concrete . ▁It ▁is ▁covered ▁by ▁in l ays ▁of ▁various ▁symbols ▁rising ▁out ▁of ▁the ▁surface ▁created ▁by ▁arc ▁sp ray ing , ▁a ▁technique ▁in ▁which ▁an ▁electric ▁arc ▁mel ts ▁metal ▁w ires ▁onto ▁the ▁surface . ▁Arc ▁is ▁ox id ized ▁to ▁a ▁te al ▁green ▁color , ▁similar ▁to ▁New ▁York ▁City ' s ▁Stat ue ▁of ▁Liber ty . ▁The ▁piece ▁includes ▁three ▁in la id ▁metal ▁circles ▁embedded ▁in ▁nearby ▁concrete ▁pav ements . ▁Each ▁circle ▁has ▁one ▁word ▁repeated