Upper Ouachita Watershed - 08040102

Home to approximately 62,000 Arkansans (2000 Census), the Upper Ouachita watershed lies within the Ouachita River Basin in Central Southwestern Arkansas.  The hydrologic unit code for this watershed is 08040102.  Upstream are two watersheds:  the Ouachita Headwaters (08040101), and the Little Missouri (08040103).  The Lower Ouachita- Smackover (08040201) is downstream.

State-Level Map - Upper Ouachita Watershed-Level Map - Upper Ouachita Watershed Land Use Map - Upper Ouachita
County Pages
(Contact Information)
Major Streams 2006 Land Use
(1,738 Square Miles)
  • Bayou Freeo
  • Brushy Creek
  • Caddo River
  • Caddo River, South Fork
  • Carney Creek
  • De Roche Creek
  • Deceiper Creek
  • L'eau Frais Creek
  • Mill Creek
  • Ouachita River
  • Prairie Bayou
  • Rock Creek
  • Forest: 73.4%
  • Transitional: 13.3%
  • Grassland: 10.3%
  • Water: 1.9%
  • Suburban: 1.7%
  • Urban: 0.1%
  • Cropland: 0.0%

Data Source: CAST

Upper Ouachita 303d Impaired Streams (what is an impaired stream?)


Total Maximum Daily Load (TMDL) Documents (what is a TMDL?)


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

Interactive Watershed Viewer
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