Big Nemaha -- Cataloging Unit 10240008

• Missouri-Nishnabotna Subregion 1024
  
• Missouri Region 10 (There are 310 cataloging units in this region.)
  The state composition by area is 81.0% Nebraska, 19.0% Kansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3156.0 km² ( 1219.1 mi² ) [% in USA = 50.02, % in Region = 41.94]
  The area from the USGS is 1190 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 398)

  IV. Elevation Analysis

  This analysis is based on 1260332 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 350.0 m ( 1148.3 ft ) [% in USA = 44.81, % in Region = 10.65]
  The elevation standard deviation is 44.9 m ( 147.3 ft ) [% in USA = 35.81, % in Region = 24.19]
  The coefficient of variation is 12.8 %.
  The vertical relief is 198.0 m ( 649.6 ft ) [% in USA = 28.23, % in Region = 16.13]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	259.0	295.3	305.2	320.0	335.0	343.7	361.6	376.1	396.0	415.9	457.0
  feet	849.7	968.8	1001.3	1049.9	1099.1	1127.6	1186.3	1233.9	1299.2	1364.5	1499.3

  

  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	124.0	77.1	0.039	0.063	30.98	40.97
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	8.71
  Perennial Streams	1048.4	651.6	0.332	0.535	61.87	90.00
  Intermittent Streams	919.1	571.2	0.291	0.469	43.49	15.16
  Canals	1.2	0.7	0.000	0.001	40.64	45.81
  1° roads	0.0	0.0	0.000	0.000	30.84	48.39
  2° roads	174.5	108.5	0.055	0.089	86.59	94.84
  3° roads	237.9	147.9	0.075	0.121	63.10	84.84
  4° roads	3858.9	2398.3	1.223	1.967	55.99	84.52
  Total Roads	4271.3	2654.7	1.353	2.178	56.28	84.19
  Railroads	274.1	170.3	0.087	0.140	82.43	93.55
  Pipes and Powerlines	121.2	75.4	0.038	0.062	59.88	77.74

  
  Of the natural water in this HUC, 43.94% (by length) is intermittent [% in USA = 46.38, % in Region = 11.94]

  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