▁road ▁enc oun ters ▁a ▁large ▁rail road ▁yard ▁on ▁the ▁east ▁side ▁before ▁the ▁partial - clo ver leaf ▁inter change ▁with ▁I - 1 0 . ▁ ▁In ▁Bald win ▁US ▁ 3 0 1 ▁cross es ▁rail road ▁tracks ▁that ▁serve ▁the ▁susp ended ▁Am tra k ▁Sun set ▁Limited ▁before ▁making ▁a ▁right ▁turn ▁at ▁a ▁conc urrency ▁with ▁US ▁ 9 0 ▁for ▁several ▁blocks . ▁This ▁conc urrency ▁may ▁become ▁history ▁if ▁the ▁Florida ▁Department ▁of ▁Transport ation ▁dec ides ▁to ▁build ▁the ▁proposed ▁Bald win ▁B yp ass ▁around ▁the ▁western ▁edge ▁of ▁town . ▁Im medi ately ▁after ▁another ▁rail road ▁crossing , ▁both ▁US ▁ 9 0 ▁and ▁ 3 0 1 ▁narrow ▁down ▁to ▁two ▁lan es ▁at ▁the ▁east ▁end ▁of ▁this ▁conc urrency . ▁US ▁ 3 0 1 ▁remains ▁a ▁two - lane ▁rural ▁highway ▁until ▁it ▁reaches ▁Cal la han ▁where ▁it ▁cross es ▁over ▁a ▁rail road ▁bridge ▁and ▁gets ▁the ▁name ▁West ▁First ▁Avenue , ▁although ▁this ▁segment ▁is ▁planned ▁to ▁be ▁w iden ed ▁to ▁four ▁lan es ▁by ▁F D OT . ▁US ▁ 3 0 1 ▁becomes ▁East ▁First ▁Avenue ▁at ▁Bo oth ▁Street ▁before ▁the ▁intersection ▁with ▁US ▁ 1 / 2 3 . ▁Here , ▁SR ▁A 1 A / 2 0 0 ▁continue ▁running ▁along ▁East ▁First ▁Avenue ▁toward ▁Fern and ina ▁Beach , ▁while ▁US ▁ 3 0 1 ▁becomes ▁part ▁of ▁a ▁three ▁route ▁overlap ▁with ▁US ▁ 1