Cahaba -- Cataloging Unit 03150202

• Alabama Accounting Unit 031502
  
• Alabama Subregion 0315
  
• South Atlantic-Gulf Region 03 (There are 198 cataloging units in this region.)
  The state composition by area is 100.0% Alabama.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 4747.3 km² ( 1833.7 mi² ) [% in USA = 74.80, % in Region = 80.30]
  The area from the USGS is 1850 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 3119)

  IV. Elevation Analysis

  This analysis is based on 1898818 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 140.5 m ( 461.0 ft ) [% in USA = 19.14, % in Region = 79.29]
  The elevation standard deviation is 59.2 m ( 194.2 ft ) [% in USA = 43.53, % in Region = 89.39]
  The coefficient of variation is 42.1 %.
  The vertical relief is 396.9 m ( 1302.1 ft ) [% in USA = 48.13, % in Region = 88.38]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	25.2	61.4	90.7	106.7	122.0	138.1	152.0	167.1	183.0	213.3	422.1
  feet	82.7	201.4	297.6	350.1	400.3	453.1	498.7	548.2	600.4	699.8	1384.8

  

  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	703.7	437.3	0.148	0.238	71.53	42.93
  Intermittent Shoreline	5.3	3.3	0.001	0.002	55.61	63.64
  Perennial Streams	2312.9	1437.5	0.487	0.784	80.81	63.64
  Intermittent Streams	1779.0	1105.6	0.375	0.603	54.76	78.79
  Canals	0.0	0.0	0.000	0.000	35.62	41.41
  1° roads	235.4	146.3	0.050	0.080	89.29	86.36
  2° roads	187.2	116.4	0.039	0.063	70.25	30.81
  3° roads	417.2	259.3	0.088	0.141	68.59	32.32
  4° roads	7609.2	4729.1	1.603	2.579	83.61	69.70
  Total Roads	8448.9	5251.0	1.780	2.864	83.94	68.18
  Railroads	466.8	290.1	0.098	0.158	86.50	92.93
  Pipes and Powerlines	231.4	143.8	0.049	0.078	69.82	33.84

  
  Of the natural water in this HUC, 37.17% (by length) is intermittent [% in USA = 40.27, % in Region = 74.24]

  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