From IN 37 (4-lane divided highway), turn west on IN 158 (16th St.) at the stoplight. Go 2 miles to IN 458. Turn north on IN 458 and go 1.1 miles to the entrance of Feldun-Purdue Ag Center; follow signs.

If you use Mapquest to get directions, use "1117 State Road 458, Bedford, IN 47421" as the location of the Test Station.