Middle Canadian-Spring -- Cataloging Unit 11090106

• Middle Canadian Accounting Unit 110901
  
• Lower Canadian Subregion 1109
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 100.0% Texas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 7300.0 km² ( 2819.8 mi² ) [% in USA = 93.27, % in Region = 97.11]
  The area from the USGS is 2780 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 362)

  IV. Elevation Analysis

  This analysis is based on 2915951 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 883.3 m ( 2897.9 ft ) [% in USA = 69.59, % in Region = 76.30]
  The elevation standard deviation is 91.3 m ( 299.5 ft ) [% in USA = 53.58, % in Region = 68.21]
  The coefficient of variation is 10.3 %.
  The vertical relief is 424.0 m ( 1391.1 ft ) [% in USA = 49.74, % in Region = 61.27]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	664.0	759.4	792.0	823.7	854.6	884.6	914.0	944.0	974.7	1005.0	1088.0
  feet	2178.5	2491.4	2598.4	2702.4	2803.8	2902.2	2998.7	3097.1	3197.8	3297.2	3569.5

  

  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	70.4	43.7	0.010	0.016	11.94	10.98
  Intermittent Shoreline	185.1	115.0	0.025	0.041	93.60	88.44
  Perennial Streams	581.3	361.3	0.080	0.128	22.12	28.32
  Intermittent Streams	2748.6	1708.3	0.377	0.606	55.05	36.99
  Canals	0.0	0.0	0.000	0.000	35.62	56.65
  1° roads	4.9	3.1	0.001	0.001	39.65	41.62
  2° roads	114.0	70.8	0.016	0.025	36.10	17.34
  3° roads	241.5	150.1	0.033	0.053	33.68	30.06
  4° roads	11041.6	6862.4	1.513	2.434	79.25	90.17
  Total Roads	11402.0	7086.4	1.562	2.513	72.86	84.97
  Railroads	284.9	177.1	0.039	0.063	48.08	44.51
  Pipes and Powerlines	306.8	190.7	0.042	0.068	63.62	62.43

  
  Of the natural water in this HUC, 81.82% (by length) is intermittent [% in USA = 80.53, % in Region = 71.10]

  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