USGS Home
Contact USGS
Search USGS

06485500 BIG SIOUX R AT AKRON,IA

PROVISIONAL DATA SUBJECT TO REVISION   

To use the above flood tracking chart for a particular property near the BIG SIOUX R AT AKRON,IA gaging station:

1. Determine the approximate elevation above sea level of the property.
2. Convert the current stage to sea level using a sea level conversion factor of 1118.90 feet for this particular gage:
       7.24 + 1118.90 = 1126.14 feet.
3. Compare the sea level in 2 to the elevation of the property to immediately know if the property has an impending threat of flooding.

Because the surface of flowing water is not flat and has a slope, the water-surface elevation near a threatened property might not be the same as the river stage at the gaging station.

Additional information for this gaging station:

• Current Hydrographs
• Station Home Page
• Station Site Map