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RRHP Construction Progress

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Aerial View of the Red Rock Hydroelectric Project, Feb. 2, 2020.

Aerial View of the Red Rock Hydroelectric Project, Feb. 2, 2020.
Powerhouse. Nov. 26, 2019
Powerhouse. Nov. 12, 2019
Upstream side of dam. Nov. 5, 2019
Downstream side of dam. Nov. 5, 2019
Upstream side of dam showing intake construction. October 14, 2019
Downstream side of dam showing powerhouse. Oct. 7, 2019
Downstream side of dam showing tailrace. Sept. 23, 2019
Upstream side of dam showing intake construction. Sept. 19, 2019
Upstream side of dam showing intake construction. Sept. 9, 2019
Downstream side of dam showing powerhouse with cofferdam removed. Sept. 5, 2019
Upstream side of dam showing intake structure construction. Aug. 20, 2019
Downstream side of dam showing powerhouse. June 27, 2019
Downstream side of dam showing switchyard construction. June 5, 2019
Upstream side of dam. May 1, 2019
Downstream side of dam showing switchyard construction. May 1, 2019
Inside powerhouse showing elevation 722. April 2019
Downstream side of dam showing Unit 2 penstock excavation. April 2019
Downstream side of dam showing powerhouse. March 2019
Upstream side of dam showing intake structure during flooding. March 2019
Downstream side of dam showing powerhouse and tailrace. March 2019
Downstream side of dam showing the powerhouse. March 2019
Downstream side of dam showing powerhouse and cofferdam partially removed. March 2019
Upstream side of dam showing intake structure. March 2019
Downstream side of dam showing powerhouse and penstock for Unit 2 construction. February 2019
Downstream side of dam showing powerhouse and cofferdam removal. February 2019
Upstream side of dam showing intake structure. February 2019
Downstream side of dam showing powerhouse. January 2019
Downstream side of dam showing tailrace and one cofferdam cell removed. January 2019
Inside powerhouse showing elevation 722 deck. January 2019
Downstream side of dam showing powerhouse and bridge. January 2019
Downstream side of dam showing tailrace and cofferdam. January 2019
Upstream side of dam showing intake construction, December 2018.
Downstream side of dam showing tailrace, December 2018.
Downstream side of dam showing powerhouse, December 2018.
Downstream side of dam showing penstock for Unit 2 excavation, November 2018.
Downstream side of dam showing elevation 722 deck, November 2018.
Downstream side of dam showing cofferdam deconstruction, November 2018.
MRES and WMMPA Directors, city officials and policy makers from Pella (Iowa) stand around the generator rotor for Unit 1 during a tour of RRHP in October.
Directors from both the MRES and Western Minnesota Municipal Power Agency boards, and several city officials, employees, and policy makers from Pella (Iowa) toured the Red Rock Hydroelectric Project (RRHP) in October. The project is expected to be operational in 2020.
Watering Up Tailrace, September 2018.
Penstock 1 Excavation, August 2018.
Installation of turbine guide-bearing seal, August 2018.
Installation of HVAC in powerhouse, August 2018.
Installation of switchboard in powerhouse, August 2018.
Installing 16-inch piping at intake structure, August 2018.
Unit 2 discharge ring/bottom ring installation
Installing Unit 1 outer head cover
Installing Unit 2 facing plates.
Installation of downstream log stop guides
Cleaning and prepping Unit 2 turbine shaft.
Downstream side of dam showing powerhouse with windows installed - June 25, 2018.
Upstream side of dam showing intake construction - June 25, 2018
Inside of powerhouse showing elevation 722 deck and crane installed - June 18, 2018.
Inside of powerhouse showing elevation 722 deck - May 31, 2018.
Load Testing the Crane, May 2018.
Inside of powerhouse showing elevation 722 deck - May 7, 2018.
Downstream side of dam showing powerhouse side walls complete - May 2018.
Downstream side of dam showing powerhouse and penstocks - April 30, 2018
Downstream side of dam - April 30, 2018
In the south corner of the powerhouse at elevation 667 - April 2, 2018.
Powerhouse - March 19, 2018
MRES & WMMPA Board Tour - October 22, 2017.
MRES & WMMPA Board Tour - October 22, 2017.
Preparation of the Generator Floor -September 15, 2017.
Pella West Substation - September 13, 2017.
Intake Structure - September 5, 2017.
Iowa Utilities Board Tour - August 30, 2017.
Dam Face Initial Cut - August 30, 2017.
National Hydropower Association Tour - August 29, 2017.
Unit 2 Spiral Case Rebar Roof Placement - August 30, 2017.
Bridge Deck Placement - August 26, 2017.
Intake Structure Concrete Placement - August 24, 2017.
Placing 1st Concrete Lift - August 24, 2017.
Penstock 1 Steel Liner - August 23, 2017.
Unit 2 - August 23, 2017
Unit 1 - August 23, 2017
Powerhouse Overview - August 23, 2017
Bridge Deck - August 18, 2017.
Penstock 1 Excavation - August 7, 2017.
Powerhouse Overview - August 23, 2017
Unit 2 - July 18, 2017
Unit 2 - July 18, 2017
Powerhouse Backfill - June 26, 2017.
Powerhouse Overview - May 25, 2017.
Downstream side of dam showing stay nose for unit 1 installed - April 26, 2017.
Downstream side of dam showing unit 1 pit liner installation - April 25, 2017.
Downstream side of dam showing secant pile wall removal for penstock - April 7, 2017.
Aerial view of the Red Rock Hydroelectric Project - April 2017.
Aerial view of the Red Rock Hydroelectric Project - April 2017.
Downstream side of dam showing draft tube construction - March 22, 2017.
Downstream side of dam showing penstock excavation and powerhouse construction - March 20, 2017.
Downstream side of dam showing powerhouse construction - March 20, 2017.
Penstock 1 Excavation - March 2017.
Downstream side of dam showing stay ring install - March 9, 2017.
Downstream side of dam showing the stay ring for unit 1 installation - March 8, 2017.
Downstream side of dam showing tailrace construction - March 7, 2017.
Unit 1 Bottom Stay Ring Anchors - February 16, 2017.
Unit 1 Stay Ring - March 10, 2017.
Spiral Case Walls - February 2017.