Costco Distribution Center

11600 Riverside Dr, Mira Loma, CA 91752

Operator: Costco

3.9 stars from 150 driver reviews

Facility info

Appointments strict—no earlier than 30 mins before time or you'll be turned away. Check-in at kiosk/guard shack inside yard, not gate. Allow 2–3.5 hours total time. Live unload varies wildly—sometimes 10 mins, often 2–3 hours. Recent trend toward slower unloads. No drop-and-hook option. No overnight parking on-site. No parking on street or dirt lot across from warehouse—$250 sheriff tickets issued regularly, especially early mornings. Some drivers use nearby Flying J or TA. Yard is organized but chaotic during peak hours (3–6am). Buzzer system tells you staging status and door assignment. Staging area available once door assigned. Porta-johns on-site. Staff attitude mixed—some helpful, others described as rude. Gate staff will confirm appt time and turn you away if early. Multiple entrance options available. Appointment system has documented errors—double-check confirmation before arriving. At least one driver was told wrong appointment date without notification from dispatch.

Driver reviews

  • 4.0 / 5

    No overnight parking. Had a 0415 appointment parked in staging area checked in at 0330 got pager and at 0400 got door. Unloaded and heading to exit gate at 0500. Good job Costco. 4 star do to no restroom.

  • 1.0 / 5

    First time here more than 6 hr not only me also same more than that before I was come here unload 30 minutes don’t trust anyone makesure my appointment at 6:45 am now 12:30 pm still on door and I missed my pick up appointment

  • 1.0 / 5

    Don’t park on street $250 parking fee if you have morning appointment before 7 am you guys good they unload in 30 minutes after that time takes more then 2hr to 4hr

  • 1.0 / 5

    No parking anywhere

Docktime — driver reviews and facility info.