McKinney-Posten Bayous Watershed - 11140201

Home to approximately 22,000 Arkansans (2000 Census), the McKinney-Posten Bayous watershed lies within the Red River Basin in Southwest Arkansas crossing a little into Texas.  The hydrologic unit code for this watershed is 11140201. Upstream watersheds include Pecan-Waterhole (11140106)Lower Little (11140109), and Lower Sulphur (11140302).  The Middle Red-Coushatta (Texas) is downstream.

State-Level Map - McKinney-Posten Bayous Watershed-Level Map - McKinney-Posten Bayous Watershed Land Use Map - McKinney-Posten Bayous
County Pages
(Contact Information)
Major Streams 2006 Land Use
(792 Square Miles)
  • Bois D'arc Creek
  • Bridge Creek
  • Maniece Bayou
  • Mckinney Bayou
  • Posten Bayou
  • Red Chute Creek
  • Red River
  • Forest: 43.6%
  • Grassland: 21.1%
  • Cropland: 20.9%
  • Transitional: 9.8%
  • Water: 3.5%
  • Suburban: 1.3%
  • Urban: 0.2%

Data Source: CAST

McKinney-Posten Bayous 303d Impaired Streams (what is an impaired stream?)


More Watershed-Related Information


  • Clean Water Act Section 303(d) Impaired Waters Data Update here
  • Arkansas’s Final/ Draft Impaired Waterbodies – 303(d) List by Year here
  • AR Water Newsletter, Summer, 2015 here
  • NPS Management Plan here
  • The projects presented at the 2015 annual NPS conference are located here

Interactive Map

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