su itable ▁and ▁dangerous ▁after ▁multiple ▁acc idents . ▁In ▁the ▁fall ▁of ▁ 1 9 0 9 , ▁the ▁track ▁was ▁p aved ▁in ▁brick . ▁In ▁just ▁over ▁two ▁months , ▁ 3 . 2   mill ion ▁br icks ▁were ▁hand ▁laid ▁on ▁a ▁bed ▁of ▁sand ▁and ▁the ▁g aps ▁were ▁filled ▁with ▁mort ar . ▁Before ▁the ▁work ▁was ▁completed , ▁loc als ▁nick named ▁the ▁track ▁the ▁" B rick yard ". ▁Begin ning ▁in ▁the ▁ 1 9 3 0 s , ▁port ions ▁of ▁the ▁track ▁were ▁p aved ▁over ▁in ▁as ph alt , ▁beginning ▁with ▁the ▁turns . ▁By ▁the ▁late ▁ 1 9 5 0 s , ▁only ▁a ▁portion ▁of ▁the ▁main st retch ▁remained ▁brick . ▁ ▁Following ▁the ▁ 1 9 6 1 ▁race , ▁the ▁remaining ▁part ▁of ▁the ▁main st retch ▁was ▁p aved ▁over , ▁and ▁the ▁entire ▁track ▁was ▁now ▁covered ▁in ▁as ph alt . ▁One ▁yard ▁of ▁br icks ▁was ▁left ▁exposed ▁at ▁the ▁start / fin ish ▁line . ▁The ▁vast ▁majority ▁of ▁the ▁original ▁ 3 . 2   mill ion ▁br icks ▁remain ▁in ▁place , ▁several ▁inches ▁beneath ▁multiple ▁layers ▁of ▁as ph alt . ▁Some ▁br icks ▁have ▁been ▁un ear th ed ▁from ▁the ▁track ▁over ▁the ▁years , ▁namely ▁in ▁the ▁locations ▁where ▁the ▁in field ▁access ▁t unn els ▁have ▁been ▁constructed . ▁Sub sequ ent ▁rep av ings ▁of ▁the ▁track ▁in ▁ 1