3rd Street in Los Angeles is a major east–west thoroughfare. The west end is in downtown Beverly Hills by Santa Monica Boulevard, and the east is at Alameda Street in downtown Los Angeles, where it shares a one-way couplet with 4th Street. East of Alameda it becomes 4th Street, where it heads to East Los Angeles, where it turns back into 3rd Street upon crossing Indiana Street. 3rd Street eventually becomes Pomona Boulevard in Monterey Park, where it then turns into Potrero Grande Drive and finally turns into Rush Street in Rosemead and ends in El Monte.