Johnson Creek Basin Hydrologic Monitoring

Welcome to the Johnson Creek Basin Hydrologic Monitoring Home Page. The U.S. Geological Survey (USGS) and the jurisdictions in the region are providing hydrologic data for the Johnson Creek Basin. Real-time surface-water and groundwater data, as well as historic data and analyses, will help improve our understanding of the hydrology of the basin. Here you will find a description of the study and other useful information pertinent to this work.
PROJECT CHIEF: Karl K. Lee
COOPERATING AGENCIES:City of Portland Bureau of Environmental Services, City of Gresham, City of Milwaukie, Clackamas County Water Environment Services, and Multnomah County
LOCATION: Johnson Creek Basin, Oregon

Project Overview

• Background

An overview of the hydrologic issues in the basin
• Approach

Primary goals of the study, data collection and methods of analysis
• Recent reports

Data and interpretive reports

Hydrologic Data

• Contacts

Study team phone numbers, e-mail addresses
• Bibliography: Listed by author or Search by keyword

Lists of references and links to available documents
• Glossary of hydrologic terms

Definitions of terms on these pages and in referenced literature
• Links to other Web pages

Federal, State, regional and local agencies with related information

Stream Monitoring

• Johnson Creek at Regner Road at Gresham (site number 14211400)
• Location map
• Graphs of gage height, discharge, temperature, and turbidity data:
Past 7 days - instantaneous
Past year - daily

• Kelley Creek at 159th Drive at Portland (site number 14211499)
• Location map
• Graphs of gage height, discharge, and temperature data:
Past 7 days - instantaneous
Past year - daily
• Water-quality samples

• Johnson Creek at Sycamore (site number 14211500)
• Location map
• Graphs of gage height, discharge, and temperature data:
Past 7 days - instantaneous
Past year - daily
• Top ten peaks since 1941 (ranked by discharge and gage height)
• Water-quality samples

• Johnson Creek at Milwaukie (site number 14211550)
• Location map
• Graphs of gage height, discharge, temperature, and turbidity data:
Past 7 days - instantaneous
Past year - daily
• Water-quality samples

• Crystal Springs Creek at Reed College at Portland (site number 452856122380000)
• Location map
• Streamflow measurements

• Crystal Springs Creek at Bybee Boulevard at Portland (site number 14211542)
• Location map
• Streamflow measurements
• Stream temperature over past year - daily

• Crystal Springs Creek at Clatsop Street at mouth at Portland (site number 14211546)
• Location map
• Streamflow measurements
• Stream temperature over past year - daily

Groundwater Monitoring

• Find water level data (periodic and daily) using a location map
• Real-time water level data and long-term response to climate: Well near 136th and Holgate Blvd., site number 452912122312801
• Real-time data
• This well is part of the Oregon Climate Response Network


• "Holgate Lake"
• Description, photographs, and graphs of lake and groundwater elevation data

Precipitation

• City of Portland HYDRA rainfall network--Rainfall data from selected sites
• View table
• View clickable map
• Weather Links
• National Weather Service:  Most recent area forecast discussion for Portland
• Other links of interest