CREATE TABLE table_77217 ("Rank" TEXT, "Name" TEXT, "Location" TEXT, "Length  (  m  ) " TEXT, "Length  (  ft  ) " TEXT)

Where is the longest arch with a length in meters of 64.2?
SELECT "Location" FROM table_77217 WHERE "Length ( m )" = '64.2'
SELECT "Location" FROM "table_77217" WHERE "Length ( m )" = '64.2'