▁the ▁Second ▁R zec z pos pol ita ▁on ▁the ▁territory ▁of ▁Ukraine , ▁the ▁navig able ▁H ory n ▁was ▁only ▁a ▁few ▁weeks ▁in ▁the ▁spring ▁of ▁ 1 9 3 7 - 1 9 3 8 , ▁that ▁is , ▁at ▁medium - high ▁levels ▁of ▁water . ▁The ▁river ▁was ▁officially ▁considered ▁suitable ▁for ▁navigation ▁from ▁the ▁mouth ▁to ▁Dub rov its a , ▁the ▁rest ▁was ▁f used . ▁ ▁During ▁the ▁Soviet ▁occupation , ▁the ▁St yr - H ory n sky ▁River ▁Transport ▁Administration ▁was ▁created ▁( by ▁the ▁middle ▁of ▁the ▁ 1 9 6 0 s ▁the ▁administration ▁was ▁called ▁the ▁[ St yr - H ory n sky ▁River ▁Transport ▁Agency ; ▁in ▁general , ▁in ▁the ▁ 1 9 7 0 - 1 9 8 0 ' s , ▁there ▁were ▁three ▁ports : ▁L ut sk , ▁Zar ich ne ▁and ▁Dub rov its ia , ▁where ▁worked ▁in ▁different ▁years ▁about ▁ 2 6 0 - 2 8 0 ▁workers ▁and ▁transport ed ▁ 3 0 0 - 3 5 0 ▁thousand ▁cargo es ▁a ▁year ). ▁This ▁management ▁existed ▁until ▁the ▁collapse ▁of ▁the ▁USS R . ▁At ▁that ▁time ▁the ▁river ▁was ▁mainly ▁bas alt ▁and ▁rub ble ▁from ▁the ▁K les iv ▁quar ry ▁to ▁the ▁Vol yn ▁region . ▁Transport ation ▁was ▁carried ▁out ▁with ▁the ▁help ▁of ▁t ugs ▁( BC ▁- ▁t ug bo at , ▁serv ic eman ▁- ▁two ▁people : ▁captain