Middle Iowa -- Cataloging Unit 07080208

• Iowa Accounting Unit 070802
  
• Upper Mississippi-Iowa-Skunk-Wapsipinicon Subregion 0708
  
• Upper Mississippi Region 07 (There are 131 cataloging units in this region.)
  The state composition by area is 100.0% Iowa.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4337.9 km² ( 1675.6 mi² ) [% in USA = 69.87, % in Region = 66.41]
  The area from the USGS is 1670 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 565)

  IV. Elevation Analysis

  This analysis is based on 1732446 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 276.2 m ( 906.2 ft ) [% in USA = 35.95, % in Region = 40.46]
  The elevation standard deviation is 27.6 m ( 90.6 ft ) [% in USA = 19.56, % in Region = 45.04]
  The coefficient of variation is 10.0 %.
  The vertical relief is 141.2 m ( 463.2 ft ) [% in USA = 16.72, % in Region = 31.30]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	206.7	238.0	252.3	259.2	272.6	277.4	289.0	291.9	304.0	307.6	347.9
  feet	678.1	780.8	827.7	850.4	894.3	910.1	948.2	957.7	997.4	1009.2	1141.4

  

  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	318.1	197.7	0.073	0.118	45.86	27.48
  Intermittent Shoreline	20.3	12.6	0.005	0.008	75.75	82.44
  Perennial Streams	1560.7	970.0	0.360	0.579	65.42	89.31
  Intermittent Streams	2258.2	1403.5	0.521	0.838	71.62	76.34
  Canals	0.0	0.0	0.000	0.000	35.62	23.66
  1° roads	54.0	33.6	0.012	0.020	58.41	50.38
  2° roads	222.3	138.2	0.051	0.082	83.47	86.26
  3° roads	323.8	201.2	0.075	0.120	62.62	41.98
  4° roads	5378.9	3343.0	1.240	1.995	57.70	46.56
  Total Roads	5979.0	3716.0	1.378	2.218	59.12	51.91
  Railroads	345.0	214.4	0.080	0.128	78.64	59.54
  Pipes and Powerlines	166.5	103.5	0.038	0.062	59.83	74.05

  
  Of the natural water in this HUC, 54.81% (by length) is intermittent [% in USA = 55.38, % in Region = 70.99]

  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