GRDA, MHPSA, Port of Catoosa mark turbine’s arrival

First of its kind in the western hemisphere …

Steve Spears, a member of the Grand River Dam Authority Board of Directors and city manager in the GRDA customer community of Cushing, Oklahoma, addresses the crowd at an event to recognize the arrival of GRDA’s new gas turbine. Manufactured by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, the new turbine will spin at the heart of GRDA’s new Unit 3 combined cycle gas generation plant, currently under construction at the Grand River Energy Center (Chouteau, Oklahoma). The first of its kind in the western hemisphere, the turbine was shipped to GRDA via the McClellan-Kerr Arkansas River Navigation System (MKARNS) and the Tulsa Port of Catoosa. The event was held at the port on Wednesday, February 25.

Steve Spears, a member of the Grand River Dam Authority Board of Directors and city manager in the GRDA customer community of Cushing, Oklahoma, addresses the crowd at an event to recognize the arrival of GRDA’s new gas turbine. Manufactured by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, the new turbine will spin at the heart of GRDA’s new Unit 3 combined cycle gas generation plant, currently under construction at the Grand River Energy Center (Chouteau, Oklahoma). The first of its kind in the western hemisphere, the turbine was shipped to GRDA via the McClellan-Kerr Arkansas River Navigation System (MKARNS) and the Tulsa Port of Catoosa. The event was held at the port on Wednesday, February 25.

Catoosa — With the help of Oklahoma’s robust inland waterway system, one of the most efficient electric generators in the nation will soon be part of the Grand River Dam Authority’s new Unit 3 combined cycle gas plant.

On Tuesday, February 23, GRDA’s new gas turbine, which will spin at the heart of the new Unit 3, arrived at the Tulsa Port of Catoosa. Manufactured by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, the M501J model turbine is the first of its kind to be deployed in the western hemisphere.

“We’re very excited to bring this highly-efficient turbine into our generation portfolio,” said GRDA Chief Executive Officer Dan Sullivan. “The construction of Unit 3, and the efficiencies it will bring, is a way to honor the long-term commitment our customers have made in GRDA.”

The M501J has the capability to produce 327 megawatts (MW) of electricity. Onsite at GRDA, it will be

GRDA Assistant General Manager of Fuel and Generation Projects Charles Barney (left) visits with Tulsa Mayor Dewey Bartlett following an event to recognize the arrival of GRDA’s new gas turbine at the Tulsa Port of Catoosa. The turbine, an M501J model constructed by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, will spin at the heart of GRDA’s new combined cycle gas generation plant, currently under construction near Chouteau, Oklahoma. GRDA’s M501J is the first of its kind in the western hemisphere.

GRDA Assistant General Manager of Fuel and Generation Projects Charles Barney (left) visits with Tulsa Mayor Dewey Bartlett following an event to recognize the arrival of GRDA’s new gas turbine at the Tulsa Port of Catoosa. The turbine, an M501J model constructed by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, will spin at the heart of GRDA’s new combined cycle gas generation plant, currently under construction near Chouteau, Oklahoma. GRDA’s M501J is the first of its kind in the western hemisphere.

fueled by Oklahoma natural gas and operate as part of a combined cycle generator, in concert with a steam turbine, also manufactured by Mitsubishi. Together, the turbines will give GRDA Unit 3 the capability to produced 495 MW.

“We at Mitsubishi Hitachi Power Systems are proud to be an integral part of GRDA’s expansion at the Grand River Energy Center,” said Dave Walsh, President and CEO of MHPSA. “The M501J, gas turbine offers the largest output and the highest performance among all gas turbines in commercial operation. When commissioned at Unit 3 in 2017, this turbine will be the 28th J-Series to go commercial, as well as the largest and most efficient single unit in operation in the western hemisphere.”

Grand River Dam Authority Chief Executive Officer Dan Sullivan poses in front of GRDA’s new gas generation turbine. Manufactured by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, the new turbine (the first of its kind in the western hemisphere) was shipped to Oklahoma via the McClellan-Kerr Arkansas River Navigation System (MKARNS) and the Tulsa Port of Catoosa. It arrived at the port earlier this week and will soon be headed to its permanent home at GRDA’s Grand River Energy Center, east of Chouteau, Oklahoma.

Grand River Dam Authority Chief Executive Officer Dan Sullivan poses in front of GRDA’s new gas generation turbine. Manufactured by Mitsubishi Hitachi Power Systems Americas (MHPSA) in Savannah, Georgia, the new turbine (the first of its kind in the western hemisphere) was shipped to Oklahoma via the McClellan-Kerr Arkansas River Navigation System (MKARNS) and the Tulsa Port of Catoosa. It arrived at the port earlier this week and will soon be headed to its permanent home at GRDA’s Grand River Energy Center, east of Chouteau, Oklahoma.

Sullivan also recognized that bringing the turbine, and many other components for the new facility, would have been difficult without the existence of the McClellan-Kerr Arkansas River Navigation System (MKARNS) and the Tulsa Port of Catoosa.

“These are tremendous assets for Oklahoma,” said Sullivan. “For GRDA, the waterway and port provided the only economical way to transport this turbine to Oklahoma.”

The Tulsa Port of Catoosa is one of the largest and most-inland ports in the country.

“The waterway is an integral part of the economy and transportation network for our region,” said Bob Portiss, Port Director, Tulsa Port of Catoosa. “We are proud that the MKARNS and the capabilities of the Port of Catoosa were so beneficial to bringing this oversize cargo to our friends at GRDA.”

Headquartered in Vinita, GRDA is Oklahoma’s state-owned electric utility; fully funded by revenues from electric and water sales instead of taxes. Each day, GRDA strives to be an “Oklahoma agency of excellence” by focusing on the 5 E’s: electricity, economic development, environmental stewardship, employees and efficiency.

# # #

GRDA to drop Holway Reservoir for routine inspection

Salina – In order to complete a mandatory inspection and collect important data along the canal and fore bay structure, as well as the penstocks and reservoir rim, the Grand River Dam Authority is informing the public that a drawdown of the W.R. Holway Reservoir will begin February 12.

An aerial view of GRDA’s W.R. Holway Reservoir, part of the Salina Pumped Storage Project, located southeast of Salina. GRDA is informing the public that it will draw down the elevation of the reservoir in mid-February to allow the Federal Energy Regulatory Commission (FERC) to complete a mandatory inspection.

An aerial view of GRDA’s W.R. Holway Reservoir, part of the Salina Pumped Storage Project, located southeast of Salina. GRDA is informing the public that it will draw down the elevation of the reservoir in mid-February to allow the Federal Energy Regulatory Commission (FERC) to complete a mandatory inspection.

According to GRDA Corporate Communications Director Justin Alberty, GRDA will lower the elevation of the reservoir to expose these areas and facilitate the inspection by the Federal Energy Regulatory Commission (FERC). FERC grants GRDA a license to operate the Salina Pumped Storage Project (SPSP) and this inspection is being done as part of those license requirements, said Alberty.

“This is a routine inspection which is required every five years but we are also collecting data to aid us in a repair project next year,” said Alberty. “We want the public to be aware because the level of the reservoir will be down about 42 feet below its normal operating level.”

Alberty said GRDA expects to begin refilling the reservoir by the second week of March.

Located east of Salina, Oklahoma, the Holway Reservoir is the upper reservoir attached to GRDA’s SPSP. This unique hydroelectric facility (the only one of its kind in Oklahoma), can pump water out of the Saline Creek arm of Lake Hudson and up the hillside into the upper reservoir. Then, when power generation is needed, the water is released back through the six turbine-generators in the powerhouse to create hydroelectricity. Holway Reservoir was created with the construction of the SPSP in 1968.

Headquartered in Vinita, GRDA is Oklahoma’s state-owned electric utility; fully funded by revenues from electric and water sales instead of taxes. Each day, GRDA strives to be an “Oklahoma agency of excellence” by focusing on the 5 E’s: electricity, economic development, environmental stewardship, employees and efficiency.

Notice of Public Meeting

NOTICE OF PUBLIC MEETING

The Grand River Dam Authority (GRDA) will hold a public meeting on Thursday, January 21, 2016 at 1:00 p.m. at:

Grand River Dam Authority
Board Room
226 W. Dwain Willis Ave.
Vinita, OK 74301

The purpose of this meeting is to obtain public comments regarding an application to modify docks by the Coves at Bird Island Homeowners Association in Afton, Oklahoma. The applicant proposes to replace and modify an existing dock, add another dock, and add a new pwc dock containing a swim platform. With the modifications, the facility would have a total of 18 boat slips and 8 pwc slips.
The property associated with this proposal is located in Duck Creek on Grand Lake, in Delaware County, Oklahoma.

GRDA wishes to solicit comments on this proposed project from all interested individuals and businesses. If you would like to submit written comments or have any questions, please contact Darrell E. Townsend II, Ph.D., Assistant General Manager of Ecosystems and Lake Management, P. O. Box 70, Langley, OK 74350, (918) 256-0616.

Floodwater release bulletin

At 10:00AM on Monday, January 4:

• Grand Lake elevation was 750.13 feet. Daily target elevation for January 4 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main spillway gate and 1 (one) east spillway gate were open at Pensacola Dam, discharging 12,689 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,909 cfs of water through generation.
• Releases through floodgates and generation totaled 26,598 cfs.
• Inflows into Grand Lake totaled 10,844 cfs.

• Lake Hudson elevation was 630.39 feet. Normal elevation is 619 feet.
• At the direction of the United States Army Corps of Engineers, 1 (one) floodgate was open at Robert S. Kerr Dam, discharging 9,867 cfs of water.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,210 cfs of water through generation.
• Releases through floodgates and generation totaled 43,077 cfs.
• Inflows into Lake Hudson totaled 28,356 cfs.

# # #

Despite some gate closures, discharge rates to remain high from Pensacola, Kerr dams

Langley – While floodwater discharges from both Pensacola Dam (Grand Lake) and Robert S. Kerr Dam (Lake Hudson) dropped slightly Wednesday morning

Floodwater from Grand Lake flows into the main spillway area on the east end of GRDA’s Pensacola Dam on Tuesday, December 29.

Floodwater from Grand Lake flows into the main spillway area on the east end of GRDA’s Pensacola Dam on Tuesday, December 29.

(December 30), the Grand River Dam Authority is reminding the public that unusually large amounts of water are still being released from both dams.

At the direction of the United States Army Corps of Engineers (USACE), floodwater discharge at both dams was decreased with the closing of some gates. However, total discharge at Pensacola Dam remained at 139,612 cubic feet per second (cfs) Wednesday afternoon, while water was being released through Kerr Dam at a rate of 192,266 cfs. Inflows into both Grand an Hudson lakes, as well as the elevation of both lakes, have also decreased slightly over the last 24 hours.

Throughout the high water conditions, GRDA personnel will continue to monitor its flood control facilities, which have operated as designed since both lakes first entered flood stage this past weekend. GRDA also remains in close contact with Mayes County Emergency Management, the Federal Energy Regulatory Commission and the USACE to keep all parties updated on the high water conditions on its lakes.

GRDA is also reminding the public that it is illegal to enter areas of floodwater discharge. Please stay well clear of these areas and obey all barriers and signs posted to limit access.

Floodwater release bulletins will be updated as conditions warrant.

 

# # #

With more floodgate operations, discharge levels to remain high

GRDA Floodwater Release Bulletin:

Pensacola Dam Floodgates on the main spillway at GRDA’s Pensacola Dam discharging water from Grand Lake on Tuesday morning (December 29) at a rate of approximately 236,00 cubic feet per second.

Pensacola Dam
Floodgates on the main spillway at GRDA’s Pensacola Dam discharging water from Grand Lake on Tuesday morning (December 29) at a rate of approximately 236,00 cubic feet per second.

Langley – Additional floodgate operations were made at the Grand River Dam Authority’s Pensacola Dam on Tuesday (December 29) to deal with the continued heavy inflows of water into the Grand River System. At the direction of the United States Army Corps of Engineers (USACE), Pensacola Dam is currently discharging 226,525 cubic feet per second (cfs) of water through its spillways and generation. Downstream at the Robert S. Kerr Dam on Lake Hudson, current discharge is 220,050 cfs. Discharges at both dams are exceptionally high and among the largest in the history of both facilities.

Based on current elevations and continued inflows into the system, it is anticipated that this level of discharge will continue at

Robert S. Kerr Dam  Floodgates at GRDA’s Robert S. Kerr Dam discharging water from Lake Hudson on Tuesday (December 29), at a rate of approximately 220,000 cubic feet per second.

Robert S. Kerr Dam
Floodgates at GRDA’s Robert S. Kerr Dam discharging water from Lake Hudson on Tuesday (December 29), at a rate of approximately 220,000 cubic feet per second.

both dams for several days.  GRDA personnel continue to monitor the situation to ensure that its flood control facilities, including Pensacola and Kerr dams, and the Salina dike, continue to operate as designed. GRDA also remains in close contact with Mayes County Emergency Management, the Federal Energy Regulatory Commission and the USACE to keep all parties updated on the high water conditions on its lakes.

Floodwater release bulletins will be updated as conditions warrant.

 

# # #

Based on current elevations and continued inflows into the system, it is anticipated that this high level of discharge will continue at both dams for several days.

Monday evening floodgate operations increasing discharge from Pensacola Dam

Langley – Due to continued heavy inflows of water into the Grand River Watershed, the United States Army Corps of Engineers directed additional floodgate operations at the Grand River Dam Authority’s Pensacola Dam (Grand Lake) on Monday evening (December 28). With this additional gate operation, water discharges at Pensacola Dam will increase to 220,000 cubic feet per second (cfs).
 
As reported earlier in the day, GRDA’s Pensacola and Robert S. Kerr Dams, along with the Salina Dike, are operating as designed to meet flood control requirements. GRDA personnel continue to monitor the situation round the clock while also staying in close contact with Mayes County Emergency Management, the Federal Energy Regulatory Commission and the United States Army Corps of Engineers to keep all parties updated on the high water conditions.
 
Floodwater release bulletins will be updated as conditions warrant.
 
# # #

 

Additional floodgate operations to increase discharge from Pensacola, Kerr dams…

Langley – Due to continued heavy inflows of water in the Grand River Watershed, the United States Army Corps of Engineers is directing additional floodgate operations at the Grand River Dam Authority’s Pensacola Dam (Grand Lake) and Robert S. Kerr Dam (Lake Hudson). GRDA is opening additional gates at Pensacola and this will cause the dam’s water discharge to increase to 201,000 cubic feet per second (cfs). Additional gate operations at Kerr Dam will increase discharge to 226,000 cfs.
 
Both Pensacola and Robert S. Kerr Dams, along with the Salina Dike, are operating as designed to meet flood control requirements along the Grand River System. GRDA personnel will be monitoring the flooding situation — as well as these facilities — round-the-clock to ensure the structures continue to operate as designed.
 
GRDA also continues to stay in close contact with Mayes County Emergency Management, the Federal Energy Regulatory Commission and the United States Army Corps of Engineers to keep all parties updated on the high water conditions.
 
Floodwater release bulletins will be updated as conditions warrant.
 
# # #

 

Floodwater release bulletin 10:30am update

At 10:30AM on Monday, December 28:
  • Grand Lake elevation was 752.96 feet. Daily target elevation for December 28 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, 4 (four) main spillway gates and 9 (nine) east spillway gates were open at Pensacola Dam, discharging 115,608 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,435 cfs of water through generation.
  • Releases through floodgates and generation totaled 129,043 cfs.
  • Inflows into Grand Lake totaled 214,737 cfs.
  • Lake Hudson elevation was 634.53 feet. Normal elevation is 619 feet.
  • At the direction of the United States Army Corps of Engineers, 6 (six) floodgates were open at Robert S. Kerr Dam, discharging 129,618 cfs of water.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 29,970 cfs of water through generation.
  • Releases through floodgates and generation totaled 159,588 cfs.
  • Inflows into Lake Hudson totaled 205,722 cfs.
# # #

 

Floodwater release bulletin

At 9AM on Monday, December 28:
  • Grand Lake elevation was 752.47 feet. Daily target elevation for December 28 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, 4 (four) main spillway gates and 7 (seven) east spillway gates were open at Pensacola Dam, discharging 101,104 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,402 cfs of water through generation.
  • Releases through floodgates and generation totaled 114,506 cfs.
  • Inflows into Grand Lake totaled 217,312 cfs.
  • Lake Hudson elevation was 634.39 feet. Normal elevation is 619 feet.
  • At the direction of the United States Army Corps of Engineers, 6 (six) floodgates were open at Robert S. Kerr Dam, discharging 107,720 cfs of water.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 31,320 cfs of water through generation.
  • Releases through floodgates and generation totaled 139,040 cfs.
  • Inflows into Lake Hudson totaled 194,106 cfs.
# # #

 

Floodwater release bulletin

At 1PM on Sunday, December 27:
  • Grand Lake elevation was 747.17 feet. Daily target elevation for December 27 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, seven (7) east spillway floodgates and four (4) main gates were open at Pensacola Dam, discharging 56,082 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,714 cfs of water through generation.
  • Releases through floodgates and generation totaled 69,796 cfs.
  • Inflows into Grand Lake totaled 155,977 cfs.
  • Lake Hudson elevation was 625.89 feet. Normal elevation is 619 feet.
  • At the direction of the United States Army Corps of Engineers, three (3) floodgate was open at Robert S. Kerr Dam, discharging 53,307 cfs of water.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 31,320 cfs of water through generation.
  • Releases through floodgates and generation totaled 84,627 cfs.
  • Inflows into Lake Hudson totaled 145,471 cfs.
# # #

 

Floodwater release bulletin

At noon on Wednesday, December 23:
  • Grand Lake elevation was 744.29 feet. Daily target elevation for December 23 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, one (1) main spillway gate was open at Pensacola Dam, discharging 7,242 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,644 cfs of water through generation.
  • Releases through floodgate and generation totaled 20,886 cfs.
  • Inflows into Grand Lake totaled 5,235 cfs.
  • Lake Hudson elevation was 619.88 feet. Normal elevation is 619 feet.
  • No floodgates were open at Robert S. Kerr Dam.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 32,130 cfs of water through generation.
  • Inflows into Lake Hudson totaled 21,744 cfs.
# # #

 

Floodwater release bulletin

At 10:00AM on Friday, December 18:

  • Grand Lake elevation was 745.22 feet. Daily target elevation for December 15 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, one (1) main and one (1) east spillway floodgates were open at Pensacola Dam, discharging 838 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing  13,642 cfs of water through generation.
  • Releases through floodgates and generation totaled 14,480 cfs.
  • Inflows into Grand Lake totaled 9,870 cfs.
  • Lake Hudson elevation was 621.94 feet. Normal elevation is 619 feet.
  • No floodgates were open at the Robert S. Kerr Dam.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 31,860 cfs of water through generation.
  • Releases through floodgates and generation totaled 31,680 cfs.
  • Inflows into Lake Hudson totaled 16,375 cfs.

# # #

According to the United States Army Corps of Engineers, the remaining floodgates will be closed later today.

Floodwater release bulletin

At 1PM on Thursday, December 17:

  • Grand Lake elevation was 745.95 feet. Daily target elevation for December 17 is 742 feet.
  • At the direction of the United States Army Corps of Engineers, six (6) east spillway floodgates and one (1) main gates were open at Pensacola Dam, discharging 19,306 cubic feet per second (cfs) of water.
  • Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,694 cfs of water through generation.
  • Releases through floodgates and generation totaled 33,000 cfs.
  • Inflows into Grand Lake totaled 10,984 cfs.
  • Lake Hudson elevation was 624.03 feet. Normal elevation is 619 feet.
  • At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 16,839 cfs of water.
  • Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,210 cfs of water through generation.
  • Releases through floodgates and generation totaled 50,049 cfs.
  • Inflows into Lake Hudson totaled 35,388 cfs.

 

# # #

Floodwater release bulletin

At 2PM on Wednesday, December 16:

• Grand Lake elevation was 746.65 feet. Daily target elevation for December 16 is 742 feet.
• At the direction of the United States Army Corps of Engineers, seven (7) east spillway floodgates and two (2) main gates were open at Pensacola Dam, discharging 33,748 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,778 cfs of water through generation.
• Releases through floodgates and generation totaled 47,526 cfs.
• Inflows into Grand Lake totaled 32,519 cfs.

• Lake Hudson elevation was 624.38 feet. Normal elevation is 619 feet.
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 17,024 cfs of water.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,480 cfs of water through generation.
• Releases through floodgates and generation totaled 50,504 cfs.
• Inflows into Lake Hudson totaled 50,855 cfs.

# # #

Floodwater release bulletin

At 10AM on Tuesday, December 15:

• Grand Lake elevation was 746.36 feet. Daily target elevation for December 15 is 742 feet.
• At the direction of the United States Army Corps of Engineers, seven (7) east spillway floodgates and two (2) main gates were open at Pensacola Dam, discharging 32,046 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,834 cfs of water through generation.
• Releases through floodgates and generation totaled 45,880 cfs.
• Inflows into Grand Lake totaled 64,345 cfs.

• Lake Hudson elevation was 624.26 feet. Normal elevation is 619 feet.
• At the direction of the United States Army Corps of Engineers, one (1) floodgate was open at Robert S. Kerr Dam, discharging 16,960 cfs of water.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 34,290 cfs of water through generation.
• Releases through floodgates and generation totaled 51,250 cfs.
• Inflows into Lake Hudson totaled 52,105 cfs.

# # #

Floodwater release bulletin

At 11:00AM on Monday, December 14:

• Grand Lake elevation was 744.90 feet. Daily target elevation for December 14 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main and seven (7) east spillway floodgates were open at Pensacola Dam, discharging 17,270 cubic feet per second (cfs) of water.
• Six (6) units were online at the Pensacola Dam powerhouse, releasing 13,674 cfs of water through generation.
• Releases through floodgates and generation totaled 30,944 cfs.
• Inflows into Grand Lake totaled 63,163 cfs.

• Lake Hudson elevation was 622.09 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,750 cfs of water through generation.
• Releases through floodgates and generation totaled 33,750 cfs.
• Inflows into Lake Hudson totaled 53,592 cfs.

# # #

The United States Army Corps of Engineers has given a crest prediction for Grand Lake of 747.30 feet to occur on Thursday, December 17.

Floodwater release bulletin

At 10:00AM on Friday, December 4:

• Grand Lake elevation was 745.25 feet. Daily target elevation for December 4 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) east spillway floodgate was open at Pensacola Dam, discharging 100 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,201 cfs of water through generation.
• Releases through floodgates and generation totaled 11,301 cfs.
• Inflows into Grand Lake totaled 7,408 cfs.

• Lake Hudson elevation was 620.18 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 32,130 cfs of water through generation.
• Releases through floodgates and generation totaled 32,130 cfs.
• Inflows into Lake Hudson totaled 12,520 cfs.

# # #

The United States Army Corps of Engineers are planning to close the remaining floodgate later today.

Floodwater release bulletin

At 3:30PM on Thursday, December 3:

• Grand Lake elevation was 745.30 feet. Daily target elevation for December 3 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) east spillway floodgate was open at Pensacola Dam, discharging 203 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,248 cfs of water through generation.
• Releases through floodgates and generation totaled 11,451 cfs.
• Inflows into Grand Lake totaled 9,778 cfs.

• Lake Hudson elevation was 621.88 feet. Normal elevation is 619 feet.
• No floodgates were open at Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,480 cfs of water through generation.
• Inflows into Lake Hudson totaled 12,922 cfs.

# # #

Floodwater release bulletin

At 11:00AM on Thursday, December 3:

• Grand Lake elevation was 745.33 feet. Daily target elevation for December 3 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main and one (1) east spillway floodgates were open at Pensacola Dam, discharging 2,181 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,175 cfs of water through generation.
• Releases through floodgates and generation totaled 13,356 cfs.
• Inflows into Grand Lake totaled 10,215 cfs.

• Lake Hudson elevation was 622.47 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 32,940 cfs of water through generation.
• Releases through floodgates and generation totaled 32,940 cfs.
• Inflows into Lake Hudson totaled 14,886 cfs.

# # #

The United States Army Corps of Engineers are planning more gate operations later today.

Floodwater release bulletin

At 3:00PM on Wednesday, December 2:

• Grand Lake elevation was 745.79 feet. Daily target elevation for December 2 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main and five (5) east spillway floodgates were open at Pensacola Dam, discharging 17,072 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,390 cfs of water through generation.
• Releases through floodgates and generation totaled 28,462 cfs.
• Inflows into Grand Lake totaled 13,970 cfs.

• Lake Hudson elevation was 622.86 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 34,290 cfs of water through generation.
• Releases through floodgates and generation totaled 34,290 cfs.
• Inflows into Lake Hudson totaled 30,330 cfs.

 

# # #

Floodwater release bulletin

At 11:00AM on Tuesday, December 1:

• Grand Lake elevation was 746.63 feet. Daily target elevation for December 1 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main and seven (7) east spillway floodgates were open at Pensacola Dam, discharging 24,438 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,341 cfs of water through generation.
• Releases through floodgates and generation totaled 35,779 cfs.
• Inflows into Grand Lake totaled 16,797 cfs.

• Lake Hudson elevation was 622.34 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 33,750 cfs of water through generation.
• Releases through floodgates and generation totaled 33,750 cfs.
• Inflows into Lake Hudson totaled 38,568 cfs.

 

# # #

The United States Army Corps of Engineers has given a crest prediction for Hudson of 624 feet for late Wednesday, December 2.

Floodwater release bulletin

At 10:00AM on Monday, November 30:

• Grand Lake elevation was 747.25 feet. Daily target elevation for November 30 is 742 feet.
• At the direction of the United States Army Corps of Engineers, one (1) main and seven (7) east spillway floodgates were open at Pensacola Dam, discharging 27,432 cubic feet per second (cfs) of water.
• Five (5) units were online at the Pensacola Dam powerhouse, releasing 11,349 cfs of water through generation.
• Releases through floodgates and generation totaled 38,781 cfs.
• Inflows into Grand Lake totaled 25,522 cfs.

• Lake Hudson elevation was 621.10 feet. Normal elevation is 619 feet.
• No floodgates were open at the Robert S. Kerr Dam.
• Four units were online at the Robert S. Kerr Dam powerhouse, releasing 32,940 cfs of water through generation.
• Releases through floodgates and generation totaled 32,940 cfs.
• Inflows into Lake Hudson totaled 42,473 cfs.

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The United States Army Corps of Engineers has given a crest prediction for Pensacola of 747.30 later today. A crest prediction has not been given for Hudson at this time.

Notice To The Public

NOTICE TO THE PUBLIC

Please take notice that The Grand River Dam Authority has received an application for a private dock requiring directional bearing. Such directional bearing relates to a dock application for a private dock which if approved shall extend 106 feet across a cove, which measures 110 feet across from 745 feet mean sea level to 745 feet mean sea level on the nearest opposite shoreline.

Applicant: Richard Collins

Location: Sawmill Hollow

Lake Address: 450521 E. 353 Rd., Afton, OK 74331

Legal Description: Township 23N, Range 22E, Section 5

Project: Private Dock

If you would like to request additional information, please address your request to the Grand River Dam Authority Administration Headquarters, P. O. Box 409, Vinita, Oklahoma 74301 or call (918) 256-5545 ext 40632.

GRDA, Pensacola Dam honored with Barbara Conner Award from SGLCC

As 2015 begins to wind down, the Grand River Dam Authority is looking back on a year filled with activity, celebration and now, recognition for its historic Pensacola Dam.

Since 1940, the 51 arches that comprise Pensacola Dam have held back the waters to create Grand Lake in Northeast Oklahoma. The dam has been on the National Register of Historic Places since the early 2000s and was recognized by the South Grand Lake Chamber of Commerce with the “Barbara Conner Achievement Award” in mid-November. Pensacola Dam turned 75 years old in 2015.

Since 1940, the 51 arches that comprise Pensacola Dam have held back the waters to create Grand Lake in Northeast Oklahoma. The dam has been on the National Register of Historic Places since the early 2000s and was recognized by the South Grand Lake Chamber of Commerce with the “Barbara Conner Achievement Award” in mid-November. Pensacola Dam turned 75 years old in 2015.

Last week, GRDA and the dam were recognized with the “Barbara Conner Achievement Award” by the South Grand Lake Chamber of Commerce (SGLCC), during the chamber’s annual banquet. According to Chamber Director Rusty Fleming, Pensacola Dam is the “goose that laid the golden egg” in Northeastern Oklahoma, because of its contributions to tourism, recreation and overall economic development in the region.

It is also fitting that the dam received the award named after the late Conner, the former director of SGLCC. Conner was also a member of the GRDA Board of Directors from 1998 to 2003 and was the first woman to sit on the board, the first woman to serve as GRDA Chair and also the first board member appointed as a lake area representative. In 2003, she was instrumental in the effort to add Pensacola Dam to the National Register of Historic Places.

Earlier this year, GRDA, SGLCC and the lake area community celebrated the dam’s (and Grand Lake’s) 75th anniversary and the foresight, effort and dedication it took to build the mile-long structure in rugged, rural Oklahoma during the Great Depression. Since 1940, Pensacola has held back the 46,500 surface acres of water to create the lake, while also providing important flood control and hydroelectric production for the state. Those contributions were especially important earlier this year, when the region experienced record rainfalls and inflows into the Grand River Watershed.

“This award is important to GRDA for a number of reasons,” said GRDA Chief Executive Officer Dan Sullivan. “After 75 years of service to Oklahoma, the dam and the lake continue to benefit the state in all the ways that early GRDA visionaries intended. During 2015, we have seen all those ways in action, from flood control and round-the-clock hydroelectric generation to ongoing recreational opportunities for thousands of Oklahomans. We appreciate the SGLCC for recognizing these important contributions.”

Headquartered in Vinita, GRDA is Oklahoma’s state-owned electric utility; fully funded by revenues from electric and water sales instead of taxes. GRDA’s low-cost, reliable power touches 75 of 77 counties in the state and serves as an important economic development engine for Oklahoma. At no cost to Oklahoma taxpayers, GRDA also manages 70,000 surface acres of lakes in the state, including Grand Lake, Lake Hudson and the W.R. Holway Reservoir. Today, GRDA’s 500 employees continue to produce the same “power for progress” that has benefited the state for 75 years. The efforts of Team GRDA facilitate over $450 million in economic activity in Oklahoma annually.

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