Priest Rapids Dam

From PTAGISWiki

Aerial view of Priest Rapids Dam. Grant County Public Utility District photo.

Priest Rapids Dam, operated by the Grant County Public Utility District, is located on the Columbia River at River Mile 397.1 (River Kilometer 639), about 73 miles upstream from the confluence of the Snake and Columbia rivers. Facilities include a powerhouse, spillway, and two adult fish ladders.

• Total Length: 10,103 feet (3,079 meters)
• Spillway Length: 1,142 feet (348 meters)
• Generating Capacity: 955.6 megawatts
• Normal Operating Reservoir: 481.5 - 486 feet (147 - 148 meters) MSL

Priest Rapids Dam Links

• Grant County Public Utility District's Priest Rapids Dam page
• Grant County Public Utility District's Adult Fish Counts
• Fish Passage Center's Priest Rapids Dam page

PIT Tag Interrogation Site Contacts

Data Steward 

Eric Lauver, Grant County Public Utility District

Technical POC 

Brett Turley, Biomark Inc.

PIT Tag Interrogation Site Location

PIT-tag detector locations for site PRA, Priest Rapids Dam.

PIT Tag Interrogation Site Details

PRA - Priest Rapids Dam Adult Fishways

In operation since 2003, this site has three distinct PIT tag detector locations. It consists of four weir orifice antennas installed in each of the adult fishways and three circular pass-through antennas in the sample flume of the Off-Ladder Adult Fish Trap (OLAFT). The antenna groups in the fish ladders interrogate PIT-tagged fish that pass through the weir orifices. Installed in 2007, the OLAFT antenna group interrogates PIT-tagged fish that pass through the sample flume to the fish sorting and sampling area. See the current site diagram and the site configuration history for antenna group details.

• Annual Event Logs and Dates of Operation

Site Configuration History

Off-ladder adult fish trap, part of PIT tag interrogation site PRA, Priest Rapids Dam. PTAGIS photo.

Config #	Dates of Operation	Antenna Group	Antenna IDs
110	Jun 2007 - Present	Left (East) Ladder OLAFT Sample Flume	A1	A2	A3
		Left (East) Ladder Weir 3	01	02
		Left (East) Ladder Weir 7	03	04
		Right (West) Ladder Weir 3	05	06
		Right (West) Ladder Weir 5	07	08

Previous site configuration
100	Dec 2002 - Jun 2007	Left (East) Ladder Weir 3	01	02
		Left (East) Ladder Weir 7	03	04
		Right (West) Ladder Weir 3	05	06
		Right (West) Ladder Weir 5	07	08