Blackstone -- Cataloging Unit 01090003

• Massachusetts-Rhode Island Coastal Subregion 0109
  
• New England Region 01 (There are 53 cataloging units in this region.)
  The state composition by area is 74.4% Massachusetts, 25.6% Rhode Island.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1151.1 km² ( 444.6 mi² ) [% in USA = 5.68, % in Region = 15.09]
  The area from the USGS is 451 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1433)

  IV. Elevation Analysis

  This analysis is based on 459588 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 144.8 m ( 475.1 ft ) [% in USA = 19.75, % in Region = 32.08]
  The elevation standard deviation is 58.1 m ( 190.6 ft ) [% in USA = 42.78, % in Region = 30.19]
  The coefficient of variation is 40.1 %.
  The vertical relief is 400.1 m ( 1312.6 ft ) [% in USA = 48.37, % in Region = 33.96]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	18.0	77.9	92.3	111.9	122.0	137.0	152.0	167.0	184.3	213.5	418.1
  feet	59.1	255.6	302.8	367.1	400.3	449.5	498.7	547.9	604.7	700.5	1371.7

  

  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	640.2	397.9	0.556	0.895	97.02	88.68
  Intermittent Shoreline	0.1	0.1	0.000	0.000	30.70	62.26
  Perennial Streams	469.8	292.0	0.408	0.657	71.15	24.53
  Intermittent Streams	9.4	5.9	0.008	0.013	6.02	28.30
  Canals	5.9	3.7	0.005	0.008	59.02	96.23
  1° roads	133.2	82.8	0.116	0.186	97.39	86.79
  2° roads	26.5	16.5	0.023	0.037	46.04	32.08
  3° roads	370.7	230.4	0.322	0.518	99.01	90.57
  4° roads	3137.1	1949.7	2.725	4.385	96.73	86.79
  Total Roads	3667.5	2279.4	3.186	5.126	97.25	86.79
  Railroads	193.1	120.0	0.168	0.270	96.40	94.34
  Pipes and Powerlines	36.4	22.6	0.032	0.051	53.01	52.83

  
  Of the natural water in this HUC, 0.85% (by length) is intermittent [% in USA = 4.64, % in Region = 26.42]

  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