Lower Arkansas-Maumelle -- Cataloging Unit 11110207

• Lower Arkansas-Fourche La Fave Accounting Unit 111102
  
• Lower Arkansas Subregion 1111
  
• Arkansas-White-Red Region 11 (There are 173 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 2892.0 km² ( 1117.1 mi² ) [% in USA = 44.77, % in Region = 41.04]
  The area from the USGS is 1100 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 2406)

  IV. Elevation Analysis

  This analysis is based on 1156192 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 100.8 m ( 330.7 ft ) [% in USA = 15.16, % in Region = 7.51]
  The elevation standard deviation is 47.3 m ( 155.2 ft ) [% in USA = 37.33, % in Region = 35.84]
  The coefficient of variation is 46.9 %.
  The vertical relief is 367.4 m ( 1205.4 ft ) [% in USA = 46.00, % in Region = 56.07]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	53.0	64.0	67.0	70.0	75.3	83.3	91.0	106.0	125.1	169.0	420.4
  feet	173.9	210.0	219.8	229.7	247.0	273.3	298.6	347.8	410.4	554.5	1379.2

  

  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	995.8	618.9	0.344	0.554	92.47	98.27
  Intermittent Shoreline	17.1	10.6	0.006	0.010	79.20	65.90
  Perennial Streams	855.3	531.6	0.296	0.476	56.23	84.97
  Intermittent Streams	1028.9	639.5	0.356	0.572	51.59	31.21
  Canals	194.3	120.8	0.067	0.108	88.39	97.11
  1° roads	273.9	170.2	0.095	0.152	96.49	100.00
  2° roads	134.4	83.5	0.046	0.075	78.64	79.77
  3° roads	434.6	270.1	0.150	0.242	84.98	86.13
  4° roads	5392.5	3351.5	1.865	3.000	90.48	98.27
  Total Roads	6235.4	3875.3	2.156	3.469	91.85	98.27
  Railroads	425.4	264.4	0.147	0.237	95.03	98.84
  Pipes and Powerlines	196.9	122.3	0.068	0.110	83.42	83.82

  
  Of the natural water in this HUC, 36.10% (by length) is intermittent [% in USA = 39.46, % in Region = 8.09]

  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