Middle Willamette -- Cataloging Unit 17090007

• Willamette Subregion 1709
  
• Pacific Northwest Region 17 (There are 219 cataloging units in this region.)
  The state composition by area is 100.0% Oregon.
  

  I. Graphical Locater Maps

  Roads

  Water Only

  8 Digit HUCs

  The area of this HUC in these maps is 1845.1 km² ( 712.7 mi² ) [% in USA = 15.11, % in Region = 20.55]
  The area from the USGS is 700 mi².
  

  II. Flow Connections (upstream and downstream units)

  III. Named places in this watershed (total = 1339)

  IV. Elevation Analysis

  This analysis is based on 737620 elevations on a 50 m grid within the area of this HUC.
  The mean elevation is 118.3 m ( 388.1 ft ) [% in USA = 16.77, % in Region = 1.83]
  The elevation standard deviation is 114.8 m ( 376.6 ft ) [% in USA = 58.98, % in Region = 6.39]
  The coefficient of variation is 97.0 %.
  The vertical relief is 1083.0 m ( 3553.1 ft ) [% in USA = 67.60, % in Region = 11.87]

  Elevation Percentiles

  	0 %	10 %	20 %	30 %	40 %	50 %	60 %	70 %	80 %	90 %	100 %
  meters	14.0	32.0	45.0	60.3	61.0	81.9	114.0	122.3	169.3	232.4	1097.0
  feet	45.9	105.0	147.6	197.8	200.1	268.7	374.0	401.2	555.4	762.5	3599.0

  

  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	437.6	272.0	0.237	0.382	84.79	93.61
  Intermittent Shoreline	7.9	4.9	0.004	0.007	74.47	88.13
  Perennial Streams	871.9	541.9	0.473	0.760	78.97	57.99
  Intermittent Streams	297.8	185.1	0.161	0.260	27.00	38.81
  Canals	19.7	12.2	0.011	0.017	66.98	60.73
  1° roads	84.7	52.7	0.046	0.074	87.97	95.43
  2° roads	0.0	0.0	0.000	0.000	15.35	29.22
  3° roads	243.8	151.5	0.132	0.213	81.62	99.54
  4° roads	4169.9	2591.6	2.260	3.636	94.98	95.43
  Total Roads	4498.4	2795.7	2.438	3.923	94.36	95.89
  Railroads	195.4	121.5	0.106	0.170	89.06	95.43
  Pipes and Powerlines	46.2	28.7	0.025	0.040	44.86	56.16

  
  Of the natural water in this HUC, 18.93% (by length) is intermittent [% in USA = 23.16, % in Region = 36.99]

  VI. Other sites

  • EPA- Surf Your Watershed - Index of Watershed Indicators
  • USGS- Science in Your Watershed - Selected Realtime Streamflow Stations
  • CTIC- Known Your Watershed

  ---

  1999 SEPT 4, Last updated on 2003 JAN 23
  
  D.L. Gustafson, dlg@rapid.msu.montana.edu