Our Watersheds

“Do unto those downstream, as you would have those upstream do unto you.” – Wendell Berry

What is a watershed?

A watershed is an area of land that drains water to a particular stream, river, lake or wetland. As rainwater and melting snow run downhill, they carry sediment and other materials into our streams, lakes, wetlands, and groundwater.  Everyone’s land management practices within a watershed affect how rainfall runoff, pollutants and sediment move down hill and downstream.  We all live in a watershed and contribute to the volume and quality of stormwater runoff!

Bringing together rural and urban best management practices; home, farm, and business owners together with local agencies and working together we can all improve our watersheds!

Check out this interactive website to watch how water moves through watersheds: river-runner.samlearner.com/go

Scott County Watersheds

This map of Scott County reveals the major watersheds that make up the county. Can you find your watershed?

You can view interactive maps of Scott County’s watersheds here. Or visit the DNR Mapping page to find the Watershed Atlas, Natural Areas Inventory and more!

Mississippi River Watershed

Small watersheds (like those in Scott County) are part of larger watersheds.  Everyone who resides in Scott County is in the Mississippi River Watershed. The blue area on the map below is the Mississippi River Watershed.  The red area is the “Dead Zone” in the Gulf of Mexico, where excess nutrients deplete the oxygen required to sustain most aquatic wildlife.

Map of the Mississippi River Watershed
Click on map for larger image

Historic Flood Events in Scott County from the National Weather Service:

Spring Flood of 1965

Great Flood of 1993

Spring Flood of 2001

Spring Flood of 2013

Severe Thunderstorms of 2014

Great Flood of 2019

Flood Resources:

Iowa Flood Center

Mississippi River Gauge at Rock Island

Mississippi River Inundation Map