New Madrid-St. Johns -- Cataloging Unit 08020201

• 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% Missouri.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1651.4 km² ( 637.9 mi² ) [% in USA = 11.18, % in Region = 14.63]
  The area from the USGS is 703 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 392)

  IV. Elevation Analysis

  This analysis is based on 659672 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 95.0 m ( 311.7 ft ) [% in USA = 14.73, % in Region = 79.27]
  The elevation standard deviation is 5.4 m ( 17.7 ft ) [% in USA = 2.51, % in Region = 19.51]
  The coefficient of variation is 5.7 %.
  The vertical relief is 101.2 m ( 332.0 ft ) [% in USA = 8.86, % in Region = 43.90]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	80.0	90.0	91.0	93.0	94.0	95.0	96.0	97.0	98.0	100.0	181.2
  feet	262.5	295.3	298.6	305.1	308.4	311.7	315.0	318.2	321.5	328.1	594.5

  

  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	85.5	53.2	0.052	0.083	36.67	14.63
  Intermittent Shoreline	21.7	13.5	0.013	0.021	87.97	90.24
  Perennial Streams	30.7	19.1	0.019	0.030	9.33	2.44
  Intermittent Streams	235.9	146.6	0.143	0.230	24.82	21.95
  Canals	1127.2	700.5	0.683	1.098	99.67	98.78
  1° roads	100.1	62.2	0.061	0.097	92.94	96.34
  2° roads	97.9	60.8	0.059	0.095	89.29	89.02
  3° roads	451.0	280.3	0.273	0.439	97.82	92.68
  4° roads	1638.4	1018.3	0.992	1.596	35.91	36.59
  Total Roads	2287.3	1421.6	1.385	2.229	59.64	64.63
  Railroads	126.3	78.5	0.077	0.123	77.26	76.83
  Pipes and Powerlines	23.8	14.8	0.014	0.023	30.70	14.63

  
  Of the natural water in this HUC, 68.91% (by length) is intermittent [% in USA = 68.83, % in Region = 93.90]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu