Lower Calcasieu -- Cataloging Unit 08080206

• Calcasieu - Mermentau Accounting Unit 080802
  
• Louisiana Coastal Subregion 0808
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 100.0% Louisiana.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 2885.5 km² ( 1114.6 mi² ) [% in USA = 44.39, % in Region = 51.22]
  The area from the USGS is 1080 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 687)

  IV. Elevation Analysis

  This analysis is based on 1152474 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 1.5 m ( 4.9 ft ) [% in USA = 0.71, % in Region = 8.54]
  The elevation standard deviation is 1.8 m ( 5.9 ft ) [% in USA = 0.66, % in Region = 7.32]
  The coefficient of variation is 120.0 %.
  The vertical relief is 8.0 m ( 26.2 ft ) [% in USA = 0.47, % in Region = 4.88]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	0.0	0.0	0.0	0.0	1.0	1.0	2.0	3.0	4.0	8.0
  feet	0.0	0.0	0.0	0.0	0.0	3.3	3.3	6.6	9.8	13.1	26.2

  

  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	1252.2	778.2	0.434	0.698	94.93	76.83
  Intermittent Shoreline	0.0	0.0	0.000	0.000	26.95	30.49
  Perennial Streams	495.4	307.9	0.172	0.276	35.67	15.85
  Intermittent Streams	58.5	36.3	0.020	0.033	9.10	8.54
  Canals	528.6	328.5	0.183	0.295	96.64	76.83
  1° roads	97.8	60.8	0.034	0.055	82.47	86.59
  2° roads	38.3	23.8	0.013	0.021	32.16	12.20
  3° roads	359.7	223.5	0.125	0.201	79.54	37.80
  4° roads	2785.4	1731.1	0.965	1.553	33.87	29.27
  Total Roads	3281.2	2039.3	1.137	1.830	38.75	30.49
  Railroads	119.8	74.4	0.042	0.067	51.02	34.15
  Pipes and Powerlines	73.6	45.7	0.025	0.041	45.48	20.73

  
  Of the natural water in this HUC, 3.24% (by length) is intermittent [% in USA = 8.91, % in Region = 9.76]

  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