River and Stream Flow Monitoring banner
Ecology home > environmental assessment > river & stream flow monitoring >
Department of Ecology homepage River and Stream Flow Monitoring homepage

Flow Monitoring Network

Statewide | Southwest Region | Northwest Region | Central Region | Eastern Region

active versus historical stations show active stations only
show active and historical stations
map of Central Region

Central Region

17 stations (active)
K E Y
Telemetry1
14 Ecology stations
1 coop station
Stand alone2
2 Ecology stations
0 coop stations
Manual stage height3
0 Ecology stations
0 coop stations
Modeled flow station
0 Ecology stations

Descriptions of station types:

1. A telemetry station transmits data every three hours to the Department of Ecology Headquarters in Olympia, Washington. The data is logged every fifteen minutes and transmitted in three hour blocks to Ecology where it is automatically imported into the streamflow database and published to Ecology's website. The data is transmitted via either a GOES satellite transmitter or a standard dial-up modem.

2. A stand-alone station logs data every fifteen minutes and is downloaded periodically (once a month) by the station lead. Data is imported into the streamflow database when the station lead returns to the office. Once the data has been imported into the database it is automatically published to the Ecology website. Stand-alone stations are typically operated for up to or less than one wateryear. Streamflow data from both the currently active stand-alone stations and historical stand-alone stations are published to the Ecology website.

3. A manual-stage-height station does not contain a continuous record. A manual-stage-height station consists of a series of periodic gage readings related to a series of instream flow measurements. Gage readings are from either a standard staff gage, wire weight gage (WWG) or from a reference point (RP). An RP is a point located somewhere over the wetted width of the station cross-section where a measurement can be made to the water surface. The correlation between these gage readings and the instream flow measurements is used to develop a rating table for the site.