| USGS Willamette River Tributary width measurements - 2002 | |||||||||
| Site indices are arbitrary numbers, used only for reference. | |||||||||
| Latitude and longitude are in degrees/minutes/seconds or in decimal degrees, NAD27. | |||||||||
| River miles were taken from USGS quadrangle maps (1:24000) are within about 0.1 to 0.2 miles of the actual location. | |||||||||
| The best spatial reference location is provided by the latitude/longitude data, collected by GPS. | |||||||||
| Map elevations were pulled off of USGS quad topo maps and are approximate. | |||||||||
| GPS elevations are not included due to their inaccuracy for the units we were using. | |||||||||
| Streamflow data are in cubic feet per second and are from USGS gages at the nearest site, which is not necessarily | |||||||||
| co-located with the width measurement site. | |||||||||
| Right and left bank designations are used in the standard manner (looking downstream). | |||||||||
| If the site is noted as being a side channel, then it is not the main channel and the river is braided in that area. | |||||||||
| The total number of photos taken at a site is indicated in the worksheet. Not all the photos have hyperlinks to them. | |||||||||
| Some field notes were misplaced, resulting in some lost width measurements for June on the Clackamas and South Santiam. | |||||||||
| We still have the photos, however, so some relative width changes might be estimated from the pictures. | |||||||||
| Questions? Contact Stewart Rounds, U.S. Geological Survey, sarounds@usgs.gov, 503-251-3280 | |||||||||
| Copies of the original field sheets are available upon request. Field sheets contain extra notes regarding access, | |||||||||
| directions, stream substrate, etc. | |||||||||
| Tributary | Number of Sites | ||||||||
| Clackamas | 14 | ||||||||
| Santiam | 3 | ||||||||
| North Santiam | 24 | ||||||||
| South Santiam | 11 | ||||||||
| McKenzie | 39 | ||||||||
| Blue | 2 | ||||||||
| South Fork McKenzie | 3 | ||||||||
| Coast Fork Willamette | 17 | ||||||||
| Row | 5 | ||||||||
| Middle Fork Willamette | 6 | ||||||||
| Fall | 5 | ||||||||
| Total | 129 | ||||||||