Lower Dan -- Cataloging Unit 03010104

• Roanoke Accounting Unit 030101
  
• Chowan-Roanoke Subregion 0301
  
• South Atlantic-Gulf Region 03 (There are 198 cataloging units in this region.)
  The state composition by area is 56.8% North Carolina, 43.2% Virginia.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3264.5 km² ( 1261.0 mi² ) [% in USA = 51.87, % in Region = 51.01]
  The area from the USGS is 1240 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1340)

  IV. Elevation Analysis

  This analysis is based on 1304617 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 160.8 m ( 527.6 ft ) [% in USA = 20.84, % in Region = 81.31]
  The elevation standard deviation is 29.8 m ( 97.8 ft ) [% in USA = 21.70, % in Region = 59.09]
  The coefficient of variation is 18.5 %.
  The vertical relief is 244.0 m ( 800.5 ft ) [% in USA = 35.53, % in Region = 81.31]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	91.0	122.0	130.2	149.4	152.0	153.8	167.5	182.6	183.4	201.9	335.0
  feet	298.6	400.3	427.2	490.2	498.7	504.6	549.5	599.1	601.7	662.4	1099.1

  

  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	741.7	460.9	0.227	0.366	83.85	63.13
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	29.80
  Perennial Streams	1699.0	1055.9	0.520	0.837	84.23	72.73
  Intermittent Streams	719.3	447.1	0.220	0.355	34.20	50.51
  Canals	0.0	0.0	0.000	0.000	35.62	41.41
  1° roads	44.5	27.6	0.014	0.022	60.40	38.89
  2° roads	229.6	142.7	0.070	0.113	93.70	82.32
  3° roads	324.5	201.7	0.099	0.160	72.71	40.91
  4° roads	5001.1	3108.2	1.532	2.465	79.96	63.13
  Total Roads	5599.8	3480.3	1.715	2.760	81.10	63.64
  Railroads	264.3	164.2	0.081	0.130	79.49	80.81
  Pipes and Powerlines	253.8	157.7	0.078	0.125	88.02	63.64

  
  Of the natural water in this HUC, 22.76% (by length) is intermittent [% in USA = 27.19, % in Region = 43.94]

  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