Tributary Reservoir Regulation Activities 20052005 AnnualAnnual ReportReport (August 2004 – September 2005) Holmes Dam and Lake Lincoln, Nebraska Water Control and Water Quality Section Hydrologic Engineering Branch Engineering Division Omaha District January 2006 2005 ANNUAL REPORT TRIBUTARY RESERVOIR REGULATION ACTIVITIES (AUGUST 2004 – SEPTEMBER 2005) NORTHWEST DIVISION OMAHA DISTRICT CHAPTER 1 - INTRODUCTION .................................................................................. 1-1 CHAPTER 2 – RESERVOIRS IN THE OMAHA DISTRICT ......................................... 2-1 a. Reservoirs with Flood Control Storage .............................................................. 2-1 b. Reservoirs without Flood Control Storage ......................................................... 2-2 CHAPTER 3 – TRIBUTARY RUNOFF AND FLOODS................................................. 3-1 a. General Hydrologic Conditions.......................................................................... 3-1 i. Long-Term Trends .................................................................................. 3-1 ii. Rocky Mountain Snow Conditions .......................................................... 3-1 b. Significant Weather Events, August 2004 through September 2005................. 3-6 i. Late Summer 2004 ................................................................................. 3-6 ii. Fall 2004................................................................................................. 3-7 iii. Winter of 2004-2005 ............................................................................... 3-8 iv. Spring 2005 ............................................................................................ 3-9 v. Summer 2005 ....................................................................................... 3-11 c. Runoff into Tributary Reservoirs...................................................................... 3-12 CHAPTER 4 – RESERVOIR ACCOMPLISHMENTS................................................... 4-1 a. Flood Damages Prevented................................................................................ 4-1 b. Recreation Usage.............................................................................................. 4-6 CHAPTER 5 – RESERVOIR OPERATIONS................................................................ 5-1 a. Previous Year Operations ................................................................................. 5-2 i. Corps of Engineers Lakes....................................................................... 5-2 ii. Bureau of Reclamation Dams ................................................................. 5-2 b. Proposed Operations......................................................................................... 5-3 i. Corps of Engineers ................................................................................. 5-3 (1) Colorado ......................................................................................... 5-3 (2) Nebraska ........................................................................................ 5-3 (3) North Dakota................................................................................... 5-4 (4) South Dakota.................................................................................. 5-4 ii. Bureau of Reclamation ........................................................................... 5-4 (1) Canyon Ferry.................................................................................. 5-5 (2) Tiber (Lake Elwell) .......................................................................... 5-5 (3) Yellowtail......................................................................................... 5-5 (4) Others............................................................................................. 5-5 i CHAPTER 6 – MAJOR REGULATION ISSUES .......................................................... 6-1 a. Water Quality..................................................................................................... 6-1 b. Downstream Channel Capacity ......................................................................... 6-1 c. Releases for Purposes other than Authorized Project Functions....................... 6-1 d. Potential Hazardous Conditions ........................................................................ 6-2 e. Dam Safety Issues ............................................................................................ 6-3 i. Corps of Engineers Dams....................................................................... 6-3 (1) Cherry Creek Dam........................................................................... 6-3 (2) Cold Brook Dam .............................................................................. 6-3 (3) Salt Creek Dams ............................................................................. 6-3 ii. Bureau of Reclamation Dams ................................................................. 6-3 (1) Clark Canyon Dam .......................................................................... 6-3 (2) Canyon Ferry Dam .......................................................................... 6-3 (3) Tiber Dam........................................................................................ 6-4 (4) Boysen Dam.................................................................................... 6-4 (5) Yellowtail Dam................................................................................. 6-4 (6) Heart Butte Dam.............................................................................. 6-4 (7) Jamestown Dam.............................................................................. 6-4 (8) Keyhole Dam................................................................................... 6-4 (9) Pactola Dam.................................................................................... 6-4 (10) Shadehill Dam ................................................................................. 6-4 (11) Glendo Dam .................................................................................... 6-4 CHAPTER 7 – WATER CONTROL MANUALS ........................................................... 7-1 a. Current Manual Status....................................................................................... 7-1 b. Work Priorities ................................................................................................... 7-1 CHAPTER 8 – DATA COLLECTION PROGRAM AND PROCEDURES...................... 8-1 a. Water Control Data Collection ........................................................................... 8-1 i. Sources................................................................................................... 8-1 ii. Storage ................................................................................................... 8-1 iii. Data Collection Equipment ..................................................................... 8-1 b. Cooperative Hydrologic Programs..................................................................... 8-2 c. Water Quality..................................................................................................... 8-2 d. Sediment ........................................................................................................... 8-4 i. Bed and Suspended Sediment Sampling ............................................... 8-4 ii. Sedimentation Surveys........................................................................... 8-4 CHAPTER 9 – OTHER WATER CONTROL ACTIVITIES............................................ 9-1 a. Water Control Initiatives .................................................................................... 9-1 i. Missouri River Region Water Control Data System Master Plan ............ 9-1 ii. Model Development................................................................................ 9-1 (1) HEC-HMS........................................................................................ 9-1 (2) HEC-RAS ........................................................................................ 9-1 (3) HEC-ResSim ................................................................................... 9-1 (4) HEC-FIA .......................................................................................... 9-1 ii b. Federal Energy Regulatory Commission (FERC) Applications.......................... 9-2 c. Personnel .......................................................................................................... 9-2 d. Training ............................................................................................................. 9-3 LIST OF TABLES TABLE PAGE 2-1 Corps of Engineers Tributary Reservoirs, Omaha District......................... 2-1 2-2 Bureau of Reclamation Tributary Reservoirs, Omaha District ................... 2-2 3-1 Mountain Snowpack Moisture as a Percent of Normal.............................. 3-2 3-2 Runoff Amounts and Peak Pool Levels................................................... 3-12 3-3 Provisional 2004 Water Year Peak Stages and Discharges.................... 3-13 4-1 Omaha District Projects Flood Damages Prevented FY 2004 - Local and Mainstem Reductions............................................... 4-1 4-2 Bureau of Reclamation Projects Flood Damages Prevented FY04 - Local and Mainstem Reductions.................................................... 4-5 4-3 Flood Damages Prevented by State, Omaha District, FY 2004 ................ 4-6 4-4 Recreation