Spring Branch (Murderkill River tributary)Spring Branch is a long 1st order tributary to the Murderkill River in Kent County, Delaware.CourseSpring Branch rises on the Fan Branch divide about 1 mile south of Felton, Delaware. Spring Branch then flows east to meet the Murderkill River about 0.5 miles southeast of Roesville, Delaware.WatershedSpring Branch drains of area, receives about 45.1 in/year of precipitation, has a topographic wetness index of 569.99 and is about 9.8% forested.