Lower Washita -- Cataloging Unit 11130304

• Washita Accounting Unit 111303
  
• Red - Washita Subregion 1113
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 100.0% Oklahoma.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1899.6 km² ( 733.8 mi² ) [% in USA = 16.96, % in Region = 6.94]
  The area from the USGS is 727 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 239)

  IV. Elevation Analysis

  This analysis is based on 759492 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 253.4 m ( 831.4 ft ) [% in USA = 32.50, % in Region = 27.17]
  The elevation standard deviation is 52.9 m ( 173.6 ft ) [% in USA = 40.41, % in Region = 42.20]
  The coefficient of variation is 20.9 %.
  The vertical relief is 225.6 m ( 740.1 ft ) [% in USA = 32.78, % in Region = 31.21]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	182.0	195.1	209.7	214.1	228.0	242.1	246.9	274.0	304.0	335.0	407.6
  feet	597.1	640.1	688.0	702.4	748.0	794.3	810.0	898.9	997.4	1099.1	1337.3

  

  V. Map Line Analysis

  Note- percentiles are for the feature density, not for the raw total lengths.
  

  line type	km	mi	km/km²	mi/mi²	% in USA	% in Region
  Perennial Shoreline	540.5	335.9	0.285	0.458	89.58	95.38
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	9.25
  Perennial Streams	404.8	251.6	0.213	0.343	42.11	67.63
  Intermittent Streams	553.7	344.1	0.291	0.469	43.53	20.23
  Canals	0.0	0.0	0.000	0.000	35.62	56.65
  1° roads	1.3	0.8	0.001	0.001	39.60	41.04
  2° roads	115.0	71.5	0.061	0.097	90.00	93.06
  3° roads	164.7	102.3	0.087	0.139	67.98	72.83
  4° roads	1605.1	997.6	0.845	1.360	25.01	12.72
  Total Roads	1886.1	1172.2	0.993	1.598	29.99	17.92
  Railroads	144.4	89.8	0.076	0.122	77.07	79.77
  Pipes and Powerlines	145.7	90.6	0.077	0.123	87.68	91.33

  
  Of the natural water in this HUC, 36.93% (by length) is intermittent [% in USA = 40.08, % in Region = 8.67]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

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  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu