Upper Washita -- Cataloging Unit 11130302

• 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 8390.8 km² ( 3241.1 mi² ) [% in USA = 95.83, % in Region = 98.84]
  The area from the USGS is 3190 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 628)

  IV. Elevation Analysis

  This analysis is based on 3355329 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 451.6 m ( 1481.6 ft ) [% in USA = 53.81, % in Region = 54.91]
  The elevation standard deviation is 63.2 m ( 207.3 ft ) [% in USA = 45.14, % in Region = 49.71]
  The coefficient of variation is 14.0 %.
  The vertical relief is 415.0 m ( 1361.5 ft ) [% in USA = 49.12, % in Region = 60.12]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	286.0	365.0	395.7	419.6	430.1	451.0	463.7	486.9	508.7	543.4	701.0
  feet	938.3	1197.5	1298.2	1376.6	1411.1	1479.6	1521.3	1597.4	1668.9	1782.8	2299.8

  

  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	678.9	422.0	0.081	0.130	49.08	56.65
  Intermittent Shoreline	6.5	4.0	0.001	0.001	50.50	35.84
  Perennial Streams	1716.1	1066.5	0.205	0.329	40.79	65.90
  Intermittent Streams	3128.4	1944.3	0.373	0.600	54.38	35.84
  Canals	18.1	11.3	0.002	0.003	51.16	74.57
  1° roads	130.9	81.4	0.016	0.025	63.38	71.10
  2° roads	277.6	172.6	0.033	0.053	61.58	51.45
  3° roads	627.2	389.8	0.075	0.120	62.72	67.63
  4° roads	10338.3	6425.3	1.232	1.982	56.99	59.54
  Total Roads	11374.1	7069.0	1.356	2.181	56.51	60.69
  Railroads	388.5	241.4	0.046	0.074	55.57	55.49
  Pipes and Powerlines	699.1	434.5	0.083	0.134	89.58	94.80

  
  Of the natural water in this HUC, 56.69% (by length) is intermittent [% in USA = 57.32, % in Region = 26.01]

  VI. Other sites

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

  ---

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