Rum Bridge BranchRum Bridge Branch is a long 2nd order tributary to Deep Creek in Sussex County, Delaware. This is the only stream of this name in the United States.CourseRum Bridge Branch rises on the Raccoon Branch divide at McDonalds Crossroads, Delaware, and then flows west-northwest to join Deep Creek about 1 mile northeast of Old Furnace.WatershedRum Bridge Branch drains of area, receives about 45.1 in/year of precipitation, has a wetness index of 667.16, and is about 33% forested.