An agricultural vehicle (100) includes: a chassis (101); a header (110) carried by the chassis (101) and configured to cut crop material; a chopper (180) carried by the chassis (101) downstream of the header (110); and a windrow assembly (200, 200', 200") carried by the chassis (101) downstream of the chopper (180), the windrow assembly (200, 200', 200") including a windrow chute (210) defining a leading edge (211) downstream from the chopper (180) and a trailing edge (212) downstream from the leading edge (211). The agricultural vehicle (100) is characterized by a roller (220) associated with the leading edge (211) to form an active leading edge (211) of the windrow chute (210) during rotation.