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Greens Bayou / Halls Bayou

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Fast Facts

  • Drainage Area: 212 Sq. Miles
  • Open Stream Miles: 308 Miles
  • Paddle Trails: 1
  • Route Short Description: Upper reach flows east from northwestern Harris County (west of State Highway 249 near Willowbrook); lower reach flows south into the Houston Ship Channel
  • Primary Streams: Greens Bayou, Halls Bayou, Garners Bayou, Reinhardt Bayou

The Greens Bayou watershed, in north Harris County, encompasses portions of the cities of Houston and Humble. The bayou’s upper reach flows eastward; the lower reach, joined about halfway down by Halls Bayou, flows southward into the Houston Ship Channel. After extensive flooding in 2001 during Tropical Storm Allison, the Greens Bayou Corridor Coalition was created to better analyze and manage the needs of the vast Greens Bayou Corridor, which is broken into four geographic sections, called “reaches.” The West, North, East, and South reaches each have distinctive characteristics, challenges, and opportunities.

Near the confluence of Greens and Garners bayous, the Harris County Flood Control District is implementing Harris County’s first wetlands mitigation bank. It will provide compensating wetlands credits for projects that cannot avoid disturbing wetlands and have qualified for credits. 

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