East Central Louisiana Coastal -- Cataloging Unit 08090301

• Central Louisiana Coastal Accounting Unit 080903
  
• Lower Mississippi Subregion 0809
  
• 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 5760.3 km² ( 2225.0 mi² ) [% in USA = 85.08, % in Region = 90.24]
  The area from the USGS is 2460 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1701)

  IV. Elevation Analysis

  This analysis is based on 2300048 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 0.2 m ( 0.7 ft ) [% in USA = 0.33, % in Region = 3.66]
  The elevation standard deviation is 0.7 m ( 2.3 ft ) [% in USA = 0.38, % in Region = 3.66]
  The coefficient of variation is 350.0 %.
  The vertical relief is 8.5 m ( 27.9 ft ) [% in USA = 0.52, % in Region = 6.10]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	1.0	8.5
  feet	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	3.3	27.9

  

  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	7456.8	4634.4	1.295	2.083	99.62	96.34
  Intermittent Shoreline	0.5	0.3	0.000	0.000	30.51	37.80
  Perennial Streams	1851.7	1150.9	0.321	0.517	60.21	51.22
  Intermittent Streams	113.8	70.7	0.020	0.032	8.91	6.10
  Canals	3851.1	2393.5	0.669	1.076	99.62	97.56
  1° roads	20.1	12.5	0.003	0.006	46.00	34.15
  2° roads	83.7	52.0	0.015	0.023	34.01	14.63
  3° roads	728.9	453.0	0.127	0.204	80.10	40.24
  4° roads	3551.7	2207.4	0.617	0.992	12.27	4.88
  Total Roads	4384.4	2724.9	0.761	1.225	16.91	6.10
  Railroads	246.4	153.2	0.043	0.069	52.11	36.59
  Pipes and Powerlines	376.9	234.3	0.065	0.105	81.81	74.39

  
  Of the natural water in this HUC, 1.21% (by length) is intermittent [% in USA = 5.68, % in Region = 6.10]

  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