Protect Our Water. Protect Hawaii's Future.

Trash Free Hawaii

Anything that goes into our storm drain system goes directly into the ocean untreated, negatively affecting water quality and marine life. Learn more about the HDOT Storm Water Management Program’s #TrashFreeHawaii campaign, focused on doing your part to prevent storm water pollution.

Visit Trashfreehawaii.com

Baby Steps

Small actions can lead to big change. Whether it is identifying the destination of household downspouts, recycling, or changing the way cars are washed, we can all help prevent storm water pollution from entering Oahu’s water resources.

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Big Steps

Preventing storm water pollution from entering your area’s water resources may require a greater effort. For example, utilizing a rain barrel to capture roof runoff will help ensure that storm water will not transport pollutants into the nearest storm drain inlet.

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Baby Steps

Small actions can lead to big change. Whether it is identifying the destination of household downspouts, recycling, or changing the way cars are washed, we can all help prevent storm water pollution from entering Oahu’s water resources.

Learn More

Big Steps

Preventing storm water pollution from entering your area’s water resources may require a greater effort. For example, utilizing a rain barrel to capture roof runoff will help ensure that storm water will not transport pollutants into the nearest storm drain inlet.

Learn More

Giant Steps

We can go even further to prevent storm water pollution. Replacing your paved driveway with a pervious surface will help storm water filter into the soil rather than flow over paved surfaces.

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Adopt-A-Highway

One of the most critical ways to keep our storm water runoff free of pollutants and debris is to adopt a highway. The HDOT Adopt-A-Highway program is a public service program that allows volunteers from any organization to pick up litter along Oahu’s state highways. This is your chance to make a personal contribution to a cleaner Hawaii!

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Keiki Learning Program

Hawaii Storm Patrol

Do you have what it takes to join the Hawaii Storm Patrol? Check out our new and improved Hawaii Storm Patrol page and help Lea and her friends stop the pollution of Hawaii’s waters!

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Storm Water Management Plan

Learn more about HDOT Highways’ proactive approach to mitigating storm water pollution by reading the Storm Water Management Plan.

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Families and Individuals

There are a variety of activities we can do and practices we can change to help prevent polluted storm water from entering Oahu’s water bodies. Click here to find out what you can do in your garden, garage and around your home to make a difference.

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Contractors and Consultants

Construction is a major industry in our islands. This section will provide information about HDOT Highways’ comprehensive construction site runoff control program to prevent water pollution during construction activities.

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