Downspout Filters

As part of the Action Plan for Retrofitting Structural BMPs DOT-HWYS recently installed downspout filters under the H-1 viaduct at the Pearl City Baseyard. These downspout filters capture trash and sediment and also contain an oil boom that reduces oil and grease from roadway storm water runoff.

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Construction BMP Tip: Mulching

During construction, ground disturbing activities often result in areas of exposed soils susceptible to erosion. If a prolonged period of time is expected where construction activity will cease or construction activities are complete, stabilizing disturbed areas is needed. Mulching is a best management practice (BMP) that can provide either temporary or permanent stabilization to prevent erosion…

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Rainy Season Tips

It’s rainy season in Hawaii, and while it has its positive affects, it also leads to pollutants being washed into our storm drains and into the ocean. Here are a few reminders on how you can help to keep our storm drains free of these harmful items.

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2017 Protect Our Water Conference

The State of Hawaii Department of Transportation (DOT) welcomed approximately 400 at its Annual Protect Our Water Conference at the Pōmaika‘i Ballrooms. A collaboration between the DOT Highways, Airports, and Harbors Divisions, the conference focused on implementing Best Management Practices on construction projects to prevent storm water pollution, and featured various local and mainland…

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DOT-HWYS Oahu’s Q4 2017 Adopt-A-Highway Champions

Congratulations to the Rotary Club of Kapolei Sunset for being HDOT Highways, Oahu District’s Fourth Quarter 2017 Adopt-A-Highway Champions! Their route is along Farrington Highway from Kalaeloa Blvd. overpass in Kapolei to the Koʻolina exit, totaling approximately 1.5 miles.

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