Wells Dam

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Wells Dam, operated by Douglas County Public Utility District, is located at River Mile 515.6 (River Kilometer 320) on the Columbia River about eight miles downstream from its confluence with the Methow River. Initial construction was completed in 1967. Facilities include generating units, spillways, a switchyard, and juvenile fish passage facilities combined into a single structure called a hydrocombine; two fish ladders provide upstream fish passage and a hatchery is adjacent to the dam.

  • Total Length: 4,460 feet (1,359 meters)
  • Hydrocombine Length:1,165 feet (355 meters)
  • Generating Capacity: 840 megawatts (10 generators)
  • Normal Operating Reservoir: 779-780.5 feet (237.4-237.9 meters)

Contents

Wells Dam Links

PIT Tag Interrogation Site Contacts

Data Steward 
Tom Kahler, Douglas County Public Utility District
Technical POC 
Brett Turley, Biomark Inc.

PIT Tag Interrogation Site Location


PIT tag detector locations at interrogation site WEA, Wells Dam.
PIT tag detector locations at interrogation site WEA, Wells Dam.

PIT Tag Interrogation Site Details

WEA - Wells Dam Adult Fishways

In operation since 2002, this site consists of weir orifice antennas in both of the adult fish ladders and pass-through antennas in the flumes leading to the adult fish traps. See the current site diagram and the site configuration history for details on antenna group locations.

Site Configuration History

The following table lists the various configurations of Antenna Group (Monitor) names and Antenna (Coil) IDs used at WEA. Click a Config # link to view the corresponding configuration diagram.
Config # Dates of Operation Antenna Group Antenna IDs
120 May 2008 - Present Left Ladder Pool 68 01 02  
Left Ladder Pool 67 03 04  
Right Ladder Pool 68 05 06  
Right Ladder Pool 67 07 08  
East Trap 09 0A  
West Trap B1 B2 B3
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