L'anguille -- Cataloging Unit 08020205

• St. Francis Accounting Unit 080202
  
• Lower Mississippi - St. Francis Subregion 0802
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 100.0% Arkansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 2458.8 km² ( 949.8 mi² ) [% in USA = 32.54, % in Region = 39.02]
  The area from the USGS is 961 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 623)

  IV. Elevation Analysis

  This analysis is based on 981668 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 71.6 m ( 234.9 ft ) [% in USA = 11.46, % in Region = 63.41]
  The elevation standard deviation is 12.5 m ( 41.0 ft ) [% in USA = 6.11, % in Region = 34.15]
  The coefficient of variation is 17.5 %.
  The vertical relief is 86.0 m ( 282.1 ft ) [% in USA = 7.25, % in Region = 36.59]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	48.0	61.1	64.0	65.0	67.0	69.0	71.0	73.0	74.0	87.0	134.0
  feet	157.5	200.5	210.0	213.3	219.8	226.4	232.9	239.5	242.8	285.4	439.6

  

  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	119.7	74.4	0.049	0.078	35.20	12.20
  Intermittent Shoreline	21.4	13.3	0.009	0.014	83.47	82.93
  Perennial Streams	488.3	303.5	0.199	0.320	39.74	19.51
  Intermittent Streams	1737.4	1079.8	0.707	1.137	87.97	81.71
  Canals	151.6	94.2	0.062	0.099	87.49	56.10
  1° roads	27.0	16.7	0.011	0.018	56.23	46.34
  2° roads	110.7	68.8	0.045	0.072	76.84	70.73
  3° roads	404.7	251.5	0.165	0.265	87.83	67.07
  4° roads	2792.6	1735.6	1.136	1.827	47.94	57.32
  Total Roads	3335.0	2072.7	1.356	2.182	56.66	59.76
  Railroads	244.4	151.9	0.099	0.160	87.02	91.46
  Pipes and Powerlines	124.4	77.3	0.051	0.081	71.06	50.00

  
  Of the natural water in this HUC, 74.31% (by length) is intermittent [% in USA = 73.80, % in Region = 100.00]

  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