Suggest an update Name* Categories* State* Locality* ZIP* Street address* Phone* Website* Company description* Visit the hotel Mainstream Bar and Grill, which is in the state Wisconsin (WI), city Waukesha. Our hotel can be found at 404 W Main St, Waukesha, WI 53186-4615. Great deals on best and cheap hotels. Your comments* (not for publishing) * — Required information Mainstream Bar and Grill/404 W Main St - Waukesha - Wisconsin (WI) ← View details 404 W Main St, Waukesha, WI 53186-4615, Waukesha, Wisconsin (WI) +1 262-544-6222