...What most of us with BCs do when they just get really nasty muddy, is hose down, towel off legs and feet, and then crate for a few minutes until your dog is drip dried. Or just do what I do and let the wet dogs run around the house - it's 80 year old wood floors in here, damp dogs aren't going to hurt them! It's not water that strips the coat, it's soap, so there's no limit to how much rinsing you can do!
Then when your dog is dry, brush her out thoroughly if you don't want the dirt to fall all over the house. Again, I just vacuum frequently.