Choptank -- Cataloging Unit 02060005

• Upper Chesapeake Subregion 0206
  
• Mid-Atlantic Region 02 (There are 95 cataloging units in this region.)
  The state composition by area is 84.3% Maryland, 15.7% Delaware.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1598.2 km² ( 617.3 mi² ) [% in USA = 10.37, % in Region = 14.74]
  The area from the USGS is 931 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1026)

  IV. Elevation Analysis

  This analysis is based on 638836 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 11.3 m ( 37.1 ft ) [% in USA = 3.13, % in Region = 13.68]
  The elevation standard deviation is 5.6 m ( 18.4 ft ) [% in USA = 2.65, % in Region = 11.58]
  The coefficient of variation is 49.6 %.
  The vertical relief is 34.9 m ( 114.5 ft ) [% in USA = 2.89, % in Region = 14.74]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	1.8	6.0	8.2	12.0	14.0	15.0	15.0	15.0	16.0	34.9
  feet	0.0	5.9	19.7	26.9	39.4	45.9	49.2	49.2	49.2	52.5	114.5

  

  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	436.0	271.0	0.273	0.439	88.92	75.79
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	49.47
  Perennial Streams	875.7	544.2	0.548	0.882	86.83	61.05
  Intermittent Streams	224.9	139.8	0.141	0.226	24.59	70.53
  Canals	37.3	23.2	0.023	0.038	75.75	93.68
  1° roads	3.1	1.9	0.002	0.003	43.53	11.58
  2° roads	26.9	16.7	0.017	0.027	37.66	17.89
  3° roads	361.1	224.5	0.226	0.364	94.22	85.26
  4° roads	2379.8	1479.0	1.489	2.396	78.16	47.37
  Total Roads	2770.9	1722.1	1.734	2.790	82.00	50.53
  Railroads	93.1	57.9	0.058	0.094	65.47	35.79
  Pipes and Powerlines	29.3	18.2	0.018	0.030	36.48	20.00

  
  Of the natural water in this HUC, 14.63% (by length) is intermittent [% in USA = 19.33, % in Region = 65.26]

  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