Text Size:   A+ A- A   •   Text Only
Site Image

Oregon Surface Water Resources

Surface Water Data

Metolius River Gage house

Introduction - Data development process;  How we gather and publish streamflow data.

Near Realtime Streamflow and Lake Level Data - View near real-time and historical stage, discharge, and lake level data. Search for and create lists of stations operated by OWRD and other agencies. View locations of stations using Google map or Google Earth. Download data.

Historical Streamflow and Lake Level Data - Allows you to locate surface water measuring sites around the state, request data, and perform statistics for a specific period of time.  Includes site information and data for both active and inactive sites.

Miscellaneous Measurement Database - Search for historical flow, stage and lake level readings made by OWRD staff at locations that are not equipped with recorders.

Oregon Surface Water Supply Index - (opens in new window) The Natural Resources Conservation Service provides maps and data detailing the surface water supply for Oregon.  Maps and charts are updated once per month.  They also include options for downloading the data they use to develop the index. 

Back to Top

Surface Water Availability

Water Availability Report System - Estimated streamflow and surface water availability in Oregon.  Water availability is the amount of water that can be appropriated from a given point on a given stream for new out-of-stream consumptive uses.  It is obtained from the natural stream flow by subtracting existing in-stream water rights and out-of-stream consumptive uses.   For a detailed description of the Water Availability Report program and the methodology used to develop it, you may review the report titled Determining Water Availability in Oregon (PDF 4.7 MB). 

Back to Top

Estimation of Peak Streamflows

Peak Flow Estimation Program - Peak flow estimates for user specified sites in Oregon. A study of the magnitude and frequency of floods in Oregon has been completed by the Oregon Water Resources Department with financial assistance from the Federal Emergency Management Agency, Oregon Department of Transportation, and the Association of Oregon Counties and with the cooperation of the U.S. Geological Survey. The study was undertaken to provide engineers and land managers with the information needed to make informed decisions about development in or near watercourses.

Back to Top

Dam and Hydroelectric Site Information

Dam Information - Inventory of dams in Oregon. This web page allows you to locate dam sites in Oregon and access information associated with them. The information you can find here includes the person or agency that owns the dam, the project name, location, and more.

Hydrolectric Projects - Inventory of hydroelectric project sites in Oregon.  This web page allows you to locate hydroelectric sites in Oregon and access information about those sites. The information found here includes the person who owns the hydroelectric site, the project name, location, and more.

Back to Top

Access Data With the Interactive Mapping Server

Access surface water availability and flood frequency data using the interactive mapping program.

Back to Top
U.S. Geological Survey - Real-time streamflow sites in the following states:
Army Corps of Engineers
Portland District 
Bureau of Reclamation
Pacific Northwest Region - Hydromet 
National Weather Service
Advanced Hydrologic Prediction Service 
Northwest River Forecast Center 
Natural Resources Conservation Service
Oregon Office
Douglas County
Real Time Stream Gage Information
Washington County
District 18 Watermaster 

Back to Top