Middle Sabine -- Cataloging Unit 12010002

• Sabine Subregion 1201
  
• Texas-Gulf Region 12 (There are 122 cataloging units in this region.)
  The state composition by area is 98.4% Texas, 1.6% Louisiana.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 7186.2 km² ( 2775.8 mi² ) [% in USA = 92.70, % in Region = 95.08]
  The area from the USGS is 2760 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1707)

  IV. Elevation Analysis

  This analysis is based on 2870397 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 108.1 m ( 354.7 ft ) [% in USA = 15.77, % in Region = 34.43]
  The elevation standard deviation is 25.2 m ( 82.7 ft ) [% in USA = 16.20, % in Region = 21.31]
  The coefficient of variation is 23.3 %.
  The vertical relief is 162.2 m ( 532.1 ft ) [% in USA = 20.75, % in Region = 27.05]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	49.3	77.8	88.1	91.0	97.5	106.7	115.4	121.0	124.3	145.8	211.5
  feet	161.7	255.2	289.0	298.6	319.9	350.1	378.6	397.0	407.8	478.3	693.9

  

  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	1262.4	784.6	0.176	0.283	76.98	77.05
  Intermittent Shoreline	6.1	3.8	0.001	0.001	52.11	35.25
  Perennial Streams	3077.9	1912.9	0.428	0.689	74.14	97.54
  Intermittent Streams	815.3	506.7	0.113	0.183	21.17	22.95
  Canals	5.9	3.7	0.001	0.001	44.43	61.48
  1° roads	160.6	99.8	0.022	0.036	72.24	78.69
  2° roads	390.8	242.9	0.054	0.088	85.88	91.80
  3° roads	406.6	252.7	0.057	0.091	52.20	72.95
  4° roads	11199.9	6960.8	1.559	2.508	81.10	64.75
  Total Roads	12157.8	7556.2	1.692	2.722	79.91	72.13
  Railroads	419.5	260.7	0.058	0.094	65.56	71.31
  Pipes and Powerlines	469.5	291.8	0.065	0.105	81.71	85.25

  
  Of the natural water in this HUC, 15.91% (by length) is intermittent [% in USA = 20.61, % in Region = 15.57]

  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