Lower Mississippi-Baton Rouge -- Cataloging Unit 08070100

• Lower Mississippi-Lake Maurepas Subregion 0807
  
• Lower Mississippi Region 08 (There are 82 cataloging units in this region.)
  The state composition by area is 99.9% Louisiana, 0.1% Mississippi.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1516.9 km² ( 585.9 mi² ) [% in USA = 9.14, % in Region = 10.98]
  The area from the USGS is 270 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1770)

  IV. Elevation Analysis

  This analysis is based on 605392 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 10.0 m ( 32.8 ft ) [% in USA = 2.70, % in Region = 14.63]
  The elevation standard deviation is 13.3 m ( 43.6 ft ) [% in USA = 6.49, % in Region = 35.37]
  The coefficient of variation is 133.0 %.
  The vertical relief is 94.0 m ( 308.4 ft ) [% in USA = 7.77, % in Region = 41.46]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	0.0	0.0	2.0	3.0	4.0	6.0	7.0	11.7	13.0	23.8	94.0
  feet	0.0	0.0	6.6	9.8	13.1	19.7	23.0	38.4	42.7	78.1	308.4

  

  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	1021.4	634.8	0.673	1.083	98.11	89.02
  Intermittent Shoreline	3.3	2.1	0.002	0.004	65.09	63.41
  Perennial Streams	243.7	151.5	0.161	0.259	33.73	14.63
  Intermittent Streams	196.2	121.9	0.129	0.208	22.88	18.29
  Canals	526.8	327.4	0.347	0.559	98.77	91.46
  1° roads	48.0	29.8	0.032	0.051	81.05	82.93
  2° roads	69.1	43.0	0.046	0.073	77.59	73.17
  3° roads	545.9	339.3	0.360	0.579	99.67	98.78
  4° roads	2306.9	1433.7	1.521	2.447	79.63	93.90
  Total Roads	2969.9	1845.8	1.958	3.150	88.06	96.34
  Railroads	303.7	188.7	0.200	0.322	97.63	98.78
  Pipes and Powerlines	39.8	24.8	0.026	0.042	46.38	21.95

  
  Of the natural water in this HUC, 13.62% (by length) is intermittent [% in USA = 18.29, % in Region = 13.41]

  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