Upper Iowa River At Decorah, IA |
Upper Iowa River At Kendallville, IA |
Upper Iowa River At Lime Springs, IA |
Upper Iowa River Near Dorchester, IA |
Volga River At Fayette, IA |
Volga River At Littleport, IA |
Walnut Creek At Des Moines, IA |
Walnut Creek Near Hartwick, IA |
Wapsipinicon River At Independence, IA |
Wapsipinicon River At Oxford Mills, IA |
Wapsipinicon River Near Anamosa, IA |
Wapsipinicon River Near De Witt, IA |
Wapsipinicon River Near Tripoli, IA |
Waterloo Creek Near Dorchester, IA |
West Fork Cedar River At Finchford, IA |
West Fork Ditch At Hornick, IA |
West Main Drainage Ditch 1 And 2 Near Britt, IA |
West Nishnabotna River At Hancock, IA |
West Nishnabotna River At Randolph, IA |
West Nishnabotna River Near Riverton, IA |
White Breast Creek Near Dallas, IA |
Willow Creek Near Soldier, IA |
Winnebago River At Mason City, IA |
Wolf Creek Near Dysart, IA |
Yellow River Near Ion, IA |