Middle Red-Coushatta -- Cataloging Unit 11140202

• Red-Saline Accounting Unit 111402
  
• Red-Sulphur Subregion 1114
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 100.0% Louisiana.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 564.2 km² ( 217.9 mi² ) [% in USA = 1.75, % in Region = 0.58]
  The area from the USGS is 276 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 432)

  IV. Elevation Analysis

  This analysis is based on 225224 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 43.7 m ( 143.4 ft ) [% in USA = 8.05, % in Region = 0.58]
  The elevation standard deviation is 7.7 m ( 25.3 ft ) [% in USA = 3.55, % in Region = 0.58]
  The coefficient of variation is 17.6 %.
  The vertical relief is 39.7 m ( 130.2 ft ) [% in USA = 3.17, % in Region = 0.58]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	27.0	33.0	36.4	40.5	42.0	43.9	45.0	46.0	49.2	55.0	66.7
  feet	88.6	108.3	119.4	132.9	137.8	144.0	147.6	150.9	161.4	180.4	218.8

  

  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	603.5	375.1	1.070	1.721	99.34	100.00
  Intermittent Shoreline	12.4	7.7	0.022	0.035	92.66	84.39
  Perennial Streams	85.9	53.4	0.152	0.245	32.64	47.40
  Intermittent Streams	46.5	28.9	0.082	0.133	17.05	1.16
  Canals	6.3	3.9	0.011	0.018	67.41	83.24
  1° roads	27.7	17.2	0.049	0.079	89.10	94.80
  2° roads	81.8	50.9	0.145	0.233	99.72	100.00
  3° roads	82.9	51.5	0.147	0.236	84.41	85.55
  4° roads	679.4	422.3	1.204	1.938	54.67	56.65
  Total Roads	871.9	541.9	1.545	2.487	72.05	84.39
  Railroads	115.6	71.8	0.205	0.330	97.82	100.00
  Pipes and Powerlines	20.8	12.9	0.037	0.059	58.46	57.23

  
  Of the natural water in this HUC, 7.87% (by length) is intermittent [% in USA = 13.22, % in Region = 0.58]

  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