Upper Sangamon -- Cataloging Unit 07130006

• 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 3700.1 km² ( 1429.2 mi² ) [% in USA = 59.97, % in Region = 53.44]
  The area from the USGS is 1420 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 654)

  IV. Elevation Analysis

  This analysis is based on 1477716 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 208.2 m ( 683.1 ft ) [% in USA = 25.30, % in Region = 19.85]
  The elevation standard deviation is 21.1 m ( 69.2 ft ) [% in USA = 12.41, % in Region = 19.08]
  The coefficient of variation is 10.1 %.
  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	159.0	182.6	185.0	198.0	206.0	210.8	213.0	218.0	222.0	231.0	290.0
  feet	521.6	599.1	606.9	649.6	675.8	691.6	698.8	715.2	728.3	757.9	951.4

  

  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	259.6	161.3	0.070	0.113	44.58	25.95
  Intermittent Shoreline	2.5	1.6	0.001	0.001	48.56	46.56
  Perennial Streams	1175.7	730.7	0.318	0.511	59.69	72.52
  Intermittent Streams	883.4	549.0	0.239	0.384	36.57	30.53
  Canals	41.0	25.5	0.011	0.018	67.27	64.12
  1° roads	210.4	130.7	0.057	0.091	91.90	96.18
  2° roads	110.5	68.7	0.030	0.048	56.66	46.56
  3° roads	281.9	175.2	0.076	0.123	63.52	42.75
  4° roads	5862.3	3643.4	1.584	2.549	82.43	90.08
  Total Roads	6465.0	4018.0	1.747	2.811	82.61	90.84
  Railroads	571.0	354.9	0.154	0.248	95.69	93.89
  Pipes and Powerlines	158.5	98.5	0.043	0.069	64.33	79.39

  
  Of the natural water in this HUC, 38.17% (by length) is intermittent [% in USA = 41.02, % in Region = 33.59]

  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