Lower Arkansas Watershed - 08020401

Home to approximately 11,000 Arkansans (2000 Census), the Lower Arkansas watershed lies within the Arkansas River Basin in Central to Southeast Arkansas.  The hydrologic unit code for this watershed is 08020401.  Two watersheds, Bayou Meto (08020402) and Lower Arkansas- Maumelle (11110207) are upstream.  Lower Mississippi-Greenville (08030100) is downstream.

State-Level Map - Lower Arkansas Watershed-Level Map - Lower Arkansas Watershed Land Use Map - Lower Arkansas
County Pages
(Contact Information)
Major Streams 2006 Land Use
(701 Square Miles)
  • Arkansas River
  • Wabbaseka Bayou
  • Cropland: 49.5%
  • Forest: 29.7%
  • Grassland: 7.0%
  • Water: 6.7%
  • Transitional: 5.3%
  • Suburban: 0.5%
  • Urban: 0.2%

Data Source: CAST

Lower Arkansas 303d Impaired Streams (what is an impaired stream?)


More Watershed-Related Information

  • CAST Arkansas Watershed Information System:  Lower Arkansas
  • EPA Surf Your Watershed:  Lower Arkansas
  • USGS Real Time Stream Flow:  Lower Arkansas
  • USGS Links to Water Quality & Groundwater Monitoring Sites:  Lower Arkansas
  • Environmental Statistics Group (Montana State University):  Lower Arkansas
  • Lower Mississippi River Conservation Committee
  • Pine Bluffs Cooperative Fish Project: Environmental and river research - Contact Edmund Pert at 870-543-8791 or at This email address is being protected from spambots. You need JavaScript enabled to view it..


  • 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
Explore your county or watershed with this flash-based interactive map.  View over 25 geographic and water-related layers. Open Interactive Watershed Viewer.