West Nishnabotna -- Cataloging Unit 10240002

• Missouri-Nishnabotna Subregion 1024
  
• Missouri Region 10 (There are 310 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 4294.4 km² ( 1658.8 mi² ) [% in USA = 69.35, % in Region = 60.97]
  The area from the USGS is 1650 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 354)

  IV. Elevation Analysis

  This analysis is based on 1714670 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 378.5 m ( 1241.8 ft ) [% in USA = 48.22, % in Region = 13.87]
  The elevation standard deviation is 41.6 m ( 136.5 ft ) [% in USA = 33.02, % in Region = 20.00]
  The coefficient of variation is 11.0 %.
  The vertical relief is 192.9 m ( 632.9 ft ) [% in USA = 27.52, % in Region = 14.19]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	280.1	320.0	336.6	351.0	365.5	380.8	395.0	408.0	415.6	434.2	473.0
  feet	919.0	1049.9	1104.3	1151.6	1199.1	1249.3	1295.9	1338.6	1363.5	1424.5	1551.8

  

  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	172.0	106.9	0.040	0.064	31.45	42.90
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	8.71
  Perennial Streams	1119.6	695.8	0.261	0.419	50.26	78.71
  Intermittent Streams	1568.1	974.5	0.365	0.588	53.15	21.94
  Canals	0.0	0.0	0.000	0.000	35.62	43.55
  1° roads	29.7	18.5	0.007	0.011	51.02	66.77
  2° roads	220.2	136.9	0.051	0.083	83.51	92.26
  3° roads	174.8	108.6	0.041	0.065	39.74	62.90
  4° roads	4953.1	3078.3	1.153	1.856	49.41	79.35
  Total Roads	5377.8	3342.3	1.252	2.015	47.47	75.16
  Railroads	191.8	119.2	0.045	0.072	53.91	73.87
  Pipes and Powerlines	126.1	78.3	0.029	0.047	50.21	67.74

  
  Of the natural water in this HUC, 54.83% (by length) is intermittent [% in USA = 55.42, % in Region = 21.29]

  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