Salt -- Cataloging Unit 07130009

• Lower Illinois Subregion 0713
  
• Upper Mississippi Region 07 (There are 131 cataloging units in this region.)
  The state composition by area is 100.0% Illinois.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4893.6 km² ( 1890.2 mi² ) [% in USA = 76.74, % in Region = 77.10]
  The area from the USGS is 1890 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 692)

  IV. Elevation Analysis

  This analysis is based on 1954435 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 205.0 m ( 672.6 ft ) [% in USA = 24.82, % in Region = 16.79]
  The elevation standard deviation is 27.0 m ( 88.6 ft ) [% in USA = 18.62, % in Region = 40.46]
  The coefficient of variation is 13.2 %.
  The vertical relief is 131.0 m ( 429.8 ft ) [% in USA = 15.02, % in Region = 24.43]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	146.0	173.2	181.0	183.7	191.6	200.0	213.0	223.0	229.3	242.3	277.0
  feet	479.0	568.2	593.8	602.7	628.6	656.2	698.8	731.6	752.3	794.9	908.8

  

  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	253.0	157.3	0.052	0.083	36.62	19.85
  Intermittent Shoreline	0.4	0.3	0.000	0.000	30.60	23.66
  Perennial Streams	1506.9	936.5	0.308	0.495	58.27	68.70
  Intermittent Streams	1769.0	1099.4	0.361	0.582	52.58	47.33
  Canals	32.2	20.0	0.007	0.011	61.53	53.44
  1° roads	238.2	148.0	0.049	0.078	88.96	91.60
  2° roads	246.8	153.4	0.050	0.081	82.90	83.97
  3° roads	312.4	194.1	0.064	0.103	57.32	29.77
  4° roads	6853.2	4259.3	1.400	2.253	72.15	75.57
  Total Roads	7650.5	4754.8	1.563	2.515	73.00	75.57
  Railroads	703.4	437.2	0.144	0.231	94.74	90.84
  Pipes and Powerlines	370.1	230.0	0.076	0.122	87.30	97.71

  
  Of the natural water in this HUC, 50.13% (by length) is intermittent [% in USA = 51.30, % in Region = 55.73]

  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