Upper Calcasieu -- Cataloging Unit 08080203

• 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 3922.8 km² ( 1515.2 mi² ) [% in USA = 63.86, % in Region = 70.73]
  The area from the USGS is 1550 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 964)

  IV. Elevation Analysis

  This analysis is based on 1567470 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 38.9 m ( 127.6 ft ) [% in USA = 7.58, % in Region = 35.37]
  The elevation standard deviation is 30.5 m ( 100.1 ft ) [% in USA = 22.36, % in Region = 82.93]
  The coefficient of variation is 78.4 %.
  The vertical relief is 136.0 m ( 446.2 ft ) [% in USA = 15.49, % in Region = 75.61]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	1.0	7.0	10.0	14.0	22.0	30.0	42.7	56.6	71.0	87.2	137.0
  feet	3.3	23.0	32.8	45.9	72.2	98.4	140.1	185.7	232.9	286.1	449.5

  

  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	177.8	110.5	0.045	0.073	33.82	8.54
  Intermittent Shoreline	0.6	0.4	0.000	0.000	33.59	42.68
  Perennial Streams	1956.0	1215.7	0.499	0.802	81.81	82.93
  Intermittent Streams	454.8	282.7	0.116	0.187	21.36	17.07
  Canals	84.5	52.5	0.022	0.035	74.23	41.46
  1° roads	43.8	27.2	0.011	0.018	56.51	48.78
  2° roads	167.9	104.4	0.043	0.069	74.85	67.07
  3° roads	537.7	334.2	0.137	0.221	82.47	47.56
  4° roads	4498.6	2795.9	1.147	1.845	48.93	58.54
  Total Roads	5248.0	3261.6	1.338	2.153	54.76	56.10
  Railroads	261.2	162.3	0.067	0.107	71.44	69.51
  Pipes and Powerlines	185.2	115.1	0.047	0.076	68.40	41.46

  
  Of the natural water in this HUC, 17.59% (by length) is intermittent [% in USA = 22.26, % in Region = 19.51]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu