When rain falls in Grand Island, it begins a journey through streets, storm drains, ditches, lakes, creeks, and rivers before eventually reaching the Platte River. Along the way, it can pick up pollutants, contribute to flooding, or soak into the ground and replenish groundwater.
Understanding where stormwater goes helps explain why protecting water quality starts right in our neighborhoods.
It Starts Where the Rain Falls
Rain that falls on lawns, gardens, and other vegetated areas can soak into the soil. This process, called infiltration, helps recharge groundwater and naturally filters water before it reaches streams and rivers.
But rain that falls on rooftops, driveways, parking lots, and streets behaves differently.
These hard surfaces prevent water from soaking into the ground, causing it to run off across the surface.
As it travels, stormwater can pick up:
- Dirt and sediment
- Grass clippings and leaves
- Fertilizers and pesticides
- Pet waste
- Oil and vehicle fluids
- Trash and litter
Into the Storm Drain System
Many residents assume storm drains connect to the wastewater treatment plant.
They don’t.
Storm drains are part of a separate system designed to reduce flooding by carrying rainwater away from streets and neighborhoods.
Water entering a storm drain typically flows through:
- Storm inlets
- Underground pipes
- Open channels and ditches
- Stormwater lakes and ponds
Unlike wastewater, stormwater is generally not treated before being discharged into local waterways.
That’s why pollution prevention is so important.
Through Grand Island’s Lakes and Waterways
Grand Island’s stormwater system includes a network of lakes, creeks, channels, and drainage corridors that help move and temporarily store water during rainfall events.
These features help reduce flooding while providing opportunities for sediment to settle and water to slow down.
Depending on where rain falls, stormwater may pass through locations such as:
- Eagle Scout Lake
- Pier Park
- L.E. Ray Lake
- Suck’s Lake
- Silver Creek
- Moore’s Creek
- Warm Slough
- Wood River
Each plays a role in moving water through the community while helping manage runoff from developed areas.
Eventually Reaching the Platte River
Most stormwater in Grand Island ultimately drains toward the Platte River.
The Platte is more than just a river flowing through central Nebraska. It is connected to the groundwater system that supplies drinking water to communities throughout the region.
What enters stormwater today can influence water quality far downstream and below ground.
That connection is one reason communities work to reduce pollution before it enters storm drains.
Stormwater and Groundwater Are Connected
Many people think of rivers and groundwater as separate systems.
In reality, they are closely linked.
Water that infiltrates into the ground may eventually become groundwater. Likewise, groundwater can contribute flow back to rivers and streams.
Because of this connection, protecting surface water helps protect groundwater resources as well.
What You Can Do
Residents play an important role in protecting local waterways.
Simple actions make a difference:
- Pick up pet waste.
- Sweep driveways and sidewalks instead of hosing debris into the street.
- Compost or properly dispose of leaves and grass clippings.
- Use fertilizers and pesticides according to label directions.
- Report illegal dumping.
- Keep litter out of streets and storm drains.
Every action helps reduce pollution before it begins its journey through Grand Island’s stormwater system.
Why It Matters
Stormwater is part of a connected system that links our neighborhoods, parks, lakes, rivers, and groundwater.
By understanding where stormwater goes, residents can better appreciate how everyday choices affect water quality, flooding, wildlife habitat, and the health of our community.
What starts as a raindrop in your driveway may eventually reach a local lake, the Platte River, or even the groundwater beneath our feet.
Our Water, Our Responsibility.