Loggy Bayou -- Cataloging Unit 11140203

• Red-Saline Accounting Unit 111402
  
• Red-Sulphur Subregion 1114
  
• Arkansas-White-Red Region 11 (There are 173 cataloging units in this region.)
  The state composition by area is 56.9% Louisiana, 43.1% Arkansas.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 3825.6 km² ( 1477.7 mi² ) [% in USA = 62.48, % in Region = 62.43]
  The area from the USGS is 1470 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1196)

  IV. Elevation Analysis

  This analysis is based on 1525555 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 78.2 m ( 256.6 ft ) [% in USA = 12.17, % in Region = 4.62]
  The elevation standard deviation is 18.8 m ( 61.7 ft ) [% in USA = 9.81, % in Region = 4.62]
  The coefficient of variation is 24.0 %.
  The vertical relief is 101.8 m ( 334.0 ft ) [% in USA = 8.95, % in Region = 2.89]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	38.0	56.0	60.0	65.9	72.4	76.0	83.0	91.0	94.0	106.0	139.8
  feet	124.7	183.7	196.8	216.2	237.5	249.3	272.3	298.6	308.4	347.8	458.7

  

  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	387.7	241.0	0.101	0.163	56.56	59.54
  Intermittent Shoreline	3.5	2.2	0.001	0.001	53.34	38.15
  Perennial Streams	1192.7	741.3	0.312	0.502	58.79	88.44
  Intermittent Streams	1846.5	1147.6	0.483	0.777	67.36	53.76
  Canals	0.0	0.0	0.000	0.000	35.62	56.65
  1° roads	72.3	45.0	0.019	0.030	68.31	75.72
  2° roads	155.8	96.9	0.041	0.066	72.05	68.21
  3° roads	698.9	434.4	0.183	0.294	90.05	93.64
  4° roads	4743.6	2948.2	1.240	1.995	57.60	60.12
  Total Roads	5670.7	3524.4	1.482	2.385	67.41	79.77
  Railroads	304.5	189.3	0.080	0.128	78.73	81.50
  Pipes and Powerlines	267.5	166.3	0.070	0.113	84.79	85.55

  
  Of the natural water in this HUC, 53.93% (by length) is intermittent [% in USA = 54.52, % in Region = 20.81]

  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