CREATE TABLE table_63445 ("Locks & Dam" TEXT, "Location [L ]" TEXT, "River Mile" FLOAT, "Lock Side" TEXT, "Lock Lift/Drop  ( in feet ) " TEXT, "Pool Length  ( miles ) " TEXT)

What is the total of the River Mile in Greenup, Kentucky?
SELECT SUM("River Mile") FROM table_63445 WHERE "Location [L ]" = 'greenup, kentucky'
SELECT SUM("River Mile") FROM "table_63445" WHERE "Location [L ]" = 'greenup, kentucky'