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Appraisal of streamflow in Tualatin River basin, Washington County, Oregon

Open-File Report 71-275

Prepared in cooperation with Washington County
By:

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Abstract

This report describes the within-year time distribution of streamflow; the magnitude and frequency of annual minimum, mean, and maximum flows; and the within-year storage required to sustain selected flows in the Tualatin River basin. The report does not include an appraisal of instantaneous peak discharges in the basin. 

Data were derived by statistical methods and are adequate for general water-development planning. A duration hydrograph provides a general description of the within-year time distribution of streamflow. Generalized equations based on a sample of gaged flows are presented for estimating magnitude and frequency of flows at ungaged sites. Generalized storage relations are included for estimating storage requirements at gaged and ungaged sites.

Study Area

Additional publication details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
Appraisal of streamflow in Tualatin River basin, Washington County, Oregon
Series title:
Open-File Report
Series number:
71-275
Year Published:
1971
Language:
English
Publisher:
U.S. Geological Survey
Publisher location:
Portland, OR
Contributing office(s):
Oregon Water Science Center
Description:
Report: iii, 38 p.; Plate: 28.95 x 23.67 inches
Country:
United States
State:
Oregon
County:
Washington County
Other Geospatial:
Tualatin River Basin
Online Only (Y/N):
N
Additional Online Files (Y/N):
N