DOCUMENTS
Alternatives Analysis
This section contains presentations and documents related to the alternatives analysis.
Alternatives Analysis Presentations
Year 2 Study Reports and Phase 1 Engineering
This section contains the draft year 2 study reports that were distributed in March 2023 for review and comment, all the comments received on the draft year 2 study reports, and the final year 2 study reports dated June 2023.
This section also contains the presentations that were given to the Technical Work Groups in March 2023 to provide an overview of the year 2 study results
Year 2 Study Report Presentations
- March 2023 Aquatics TWG Meeting Presentation – Aquatic Resources
- March 2023 Aquatics TWG Meeting Presentation – Engineering Feasibility
- March 2023 Terrestrial TWG Meeting Presentation – Terrestrial Wildlife
- March 2023 Terrestrial TWG Meeting Presentation – Wetlands and Wildlife Habitat
- March 2023 Recreation TWG Meeting Presentation
- March 2023 Cultural TWG Meeting Presentation
March 2023 Draft Report
- Cultural Resources (pending final redaction)
- Eklutna River Fish Species Composition and Distribution
- Geomorphology and Sediment Transport
- Eklutna River Instream Flow
- Eklutna Lake Aquatic Habitat and Fish Utilization
- Recreation
- Stream Gaging
- Terrestrial Wildlife
- Water Quality
- Wetland and Wildlife Habitat
- Engineering Feasibility and Cost Assessment – Revised
- Engineering Feasibility Design Drawings – Revised
Comments on Draft Reports
June 2023 Final Reports
Preliminary Study Results and Engineering Assesment
Some preliminary instream flow and geomorphology modeling results, as well as some preliminary lake fisheries and water quality study results, were presented to the Aquatics Technical Work Group (TWG) during a series of meetings in late 2022. At these meetings, the project team also presented ideas for potential engineering solutions that would provide flows into the Eklutna River and fish passage into Eklutna Lake. This section contains those presentations, draft tech memos, comments, responses, and final tech memos.
- Sep 2022 Aquatics TWG Meeting
- Oct 2022 Aquatics TWG Meeting
- Nov 2022 Aquatics TWG Meeting
- FEB 2023 AQUATICS TWG MEETING
Sep 2022 Aquatics TWG Meeting
- Preliminary Instream Flow Study Results Draft Tech Memo
- Preliminary Instream Flow Study Results Presentation
- Preliminary Engineering Assessment for Providing Year-Round Instream Flows
- ADFG Comments
- USFWS Comments
- Preliminary Instream Flow Study Results Final Tech Memo and Responses
Oct 2022 Aquatics TWG Meeting
Nov 2022 Aquatics TWG Meeting
- Preliminary Lake Fish Study Results Draft Tech Memo
- Preliminary Lake Fish Study Results Presentation
- Preliminary Lake WQ Study Results Draft Tech Memo
- Preliminary Lake WQ Study Results Presentation
- Preliminary Engineering Assessment for Providing Fish Passage
- USFWS Comments
- NVE Comments
- Preliminary Lake Fish Study Results Final Tech Memo and Responses
- Preliminary Lake WQ Study Results Final Tech Memo and Responses
Year 2 Study Plans
This section contains the presentations that were given to the Technical Work Groups in November 2021 to kick off the year 2 study planning effort, the draft year 2 study plans that were distributed in February 2022 for review and comment, all of the comments received on the draft year 2 study plans, the proposed final year 2 study plans that were distributed to the parties to the 1991 Agreement in April 2022 for review and concurrence, all of the comments received on the proposed final year 2 study plans, all of the concurrence letters received from the parties to the 1991 Agreement, and the final year 2 study plans dated May 2022.
Year 2 Study Plans
- November 2021 Cultural TWG Meeting Presentation
- November 2021 Recreation TWG Meeting Presentation
- November 2021 Aquatics TWG Meeting Presentation
- November 2021 Terrestrial TWG Meeting Presentation
- February 2022 Draft Year 2 Study Plans
- April 2022 Proposed Final Year 2 Study Plans
- May 2022 Final Year 2 Study Plans
Comments on Draft
- Alaska Department of Fish and Game
- Alaska Department of Environmental Conservation
- Alaska Department of Natural Resources – Office of History and Archaeology
- U.S. Fish and Wildlife Service
- National Marine Fisheries Service
- Native Village of Eklutna
- Native Village of Eklutna (supplemental comments provided on 3-25-2022)
- Trout Unlimited
- The Conservation Fund
Comments on Proposed Final
Year 1 Study Reports
This section contains the draft year 1 study reports that were distributed in February 2022 for review and comment, all of the comments received on the draft year 1 study reports, and the final year 1 study reports dated May 2022.
February 2022 Draft Reports
- Instream Flow Study
- Geomorphology and Sediment Transport Study
- Eklutna River Fish Species Composition and Distribution Study
- Macroinvertebrates Study – Draft Study Report
- Water Quality Study
- Stream Gaging Study
- Lake Aquatic Habitat and Fish Utilization Study
- Lakeside Trail Erosion Study
- Hydropower Operations Modeling
- Existing Infrastructure Assessment
Comments on Draft Reports
May 2022 Final Reports
Year 1 Study Plans
This section contains the presentation that was given to the Technical Work Group in September 2020 to kick off the year 1 study planning effort, the draft year 1 study plans that were distributed in October 2020 for review and comment, all of the comments received on the draft year 1 study plans, the revised draft year 1 study plans that were distributed in January 2021 for review and comment, all of the comments received on the revised draft year 1 study plans, the proposed final year 1 study plans that were distributed to the parties to the 1991 Agreement in February 2021 for review and concurrence, all of the comments received on the proposed final year 1 study plans, all of the concurrence letters received from the parties to the 1991 Agreement, and the final year 1 study plans dated May 2021. This section also contains the Memorandums of Agreement (MOAs) executed with the parties to the 1991 Agreement to address specific legal concerns regarding the 2021 study flow releases, as well as the final downramping procedures and public safety plan.
Year 1 Study Plans
Comments on Revised Draft
2020 Study Efforts
The project owners conducted some early study efforts in 2020 in order to support the overall study planning process. This included collecting LiDAR data, aerial imagery, and spherical video of the Eklutna River and Eklutna Lake, inspecting the spillway and drainage outlet gate, establishing some geomorphology transects and installing some scour monitors in the Eklutna River. This section contains the reports associated with those study efforts.
Initial Information Package
This section contains the draft initial information package that were distributed in March 2020 for review and comment, all of the comments received on the draft initial information package, and the final initial information package dated September 2020.
Initial Information Package
IIP Reference Documents
This section contains relevant documents and existing information that our team has obtained from various sources and compiled for easy reference. This does not represent all of the information we have gathered to date, and more documents may be added over time.
Section 1: Introduction
Introduction Documents
- AL&P 1943 Application for Amendment of License: Project No. 350, Exhibit M-1 Power Plant Equipment »
- Anchorage Municipal Assembly 2017 Resolution »
- APA 1992 Divestiture Summary Report »
- APA 1992 Environmental Assessment »
- CEMML 2002 The Early Electrification of Anchorage »
- Chugach 2017 Resolution »
- FPC 1944 Order Approving Transfer of License (Major): Project No. 350 »
- 1991 Fish and Wildlife Agreement »
- MJA 2019 Technical Group Follow-up Meeting Minutes »
- MJA 2019 Site Reconnaissance Trip Report »
- MEA 2018 Resolution »
- USBR 1948 Eklutna Project, to serve 25% of all Alaskans »
- USBR 1958 Technical Record of Design and Construction »
- USBR 1967 Rehabilitation of Eklutna Project Features Following Earthquake of March 1964 »
Section 2: Schedule and Communication Protocols
Schedule and Communication Protocol Documents
Section 3: History of Development in the Eklutna Basin
and Project Tailrace Area
History of Development Documents
- ADFG 1997 Letter RE: Eklutna Tailrace, fisheries maintenance plan »
- ADFG 2017 Memo RE: Eklutna Dam Removal Project, Emergency Action »
- ADFG 2019 Statewide Stocking Plan for Sport Fish 2019 – 2013 »
- ADFG, Southcentral Recreational Angler Access Projects: Eklutna Tailrace »
- ADNR 2016 Chugach State Park Management Plan »
- 1984 Agreement for Public Water Supply »
- APA 1996 Letter RE: Public Fishing Access at the Eklutna Power Plant »
- APA 1997 Letter RE: Approval to Provide Sport Fish Management at the Eklutna Project »
- ARC 1954 Final Construction Report, Eklutna River Bridge »
- ARRC, Alaska Railroad: a legend over 90 years in the making »
- AWWU 1984 Eklutna Water Project Executive Summary »
- AWWU Overview »
- CEMML 2002 The Early Electrification of Anchorage »
- Chandonnet 1979 The Once & Future Village of Ikluat/Eklutna »
- Chandonnet 1991 On the Trail of Eklutna »
- CIAA 2019 Annual Management Plan, Eklutna Salmon Hatchery »
- CIAA 2019 Annual Report »
- CIAA Eklutna Salmon Hatchery »
- Cook Inlet Historical Society, Anchorage History »
- Dumond and Mace 1968 An Archaeological Survey along Knik Arm »
- Eklutna, Inc., Eklutna Dam Removal and Diversion Project »
- FPC 1944 Order Approving Transfer of License (Major): Project No. 350 »
- HDR 2016 Lower Eklutna River Dam Removal, Project Description to support application Section 404 Individual Permit: 2017 Dam Deconstruction and Sediment Relocation »
- Kari and Fall 2003 Shem Pete’s Alaska (this document contains copyright information and is therefore not available for public review) »
- Lobdell 1984 An Archaeological Assessment of the Eklutna Water Project »
- Mead & Hunt 2014 Alaska Roads Historic Overview »
- MJA 2019 Site Reconnaissance Trip Report »
- NVE »
- NVE Removal of Eklutna River Canyon Illegal Dump »
- NPS 1982 NRHP Inventory Nomination Form: Mike Alex Cabin, photos »
- NWS Eklutna Hydrology (Draft) »
- R&M 2015 Eklutna River Bridge Replacement Project, Hydrologic and Hydraulic Report »
- Section 905(b) Eklutna Watershed Study »
- Sinnott 2016 Anchorage Daily News Article »
- 1988 Public Water Supply Supplemental Agreement No. 1 »
- 1993 Public Water Supply Supplemental Agreement No. 2 »
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report »
- U.S. Army 2008 Eklutna Glacier Training Site, Qualitative Assessment Report »
- USBR 1948 Eklutna Project, to serve 25% of all Alaskans »
- USBR 1958 Technical Record of Design and Construction »
- USBR 1961 Eklutna Project, Annual Project History, Calendar Year 1961, Volume XI (in part) »
- USBR 1962 Eklutna Project, Annual Project History, Calendar Year 1962, Volume XII (in part) »
- USBR 1963 Eklutna Project, Annual Project History, Calendar Year 1963, Volume XIII (in part) »
- USBR 1964 Eklutna Project, Annual Project History, Calendar Year 1964, Volume XIV (in part) »
- USBR 1965 Eklutna Project, Annual Project History, Calendar Year 1965, Volume XV (in part) »
- USBR 1967 Rehabilitation of Eklutna Project Features Following Earthquake of March 1964 »
- Ward 2010 Monitoring the efficacy of juvenile salmon off-channel habitat restoration projects in Southcentral Alaska »
Section 4: Project Facilities and Operations
Facilities & Operations Documents
- Chugach 2016 Eklutna Hydroelectric Project Emergency Action Plan (this document contains sensitive information and is therefore not available for public review)
- Chugach 2016 Operations and Maintenance Plan for Eklutna Dam (this document contains sensitive information and is therefore not available for public review)
- MJA 2018 Eklutna Dam Periodic Safety Inspection (this document contains sensitive information and is therefore not available for public review)
- ADNR 2019 Certificate of Approval to Operate Eklutna Dam
- MJA 2020 Summary of Spill Events at Eklutna Dam
- USBR 1956 Eklutna Project, Annual Project History, Calendar Year 1956, Volume VI (in part)
- USBR 1957 Eklutna Project, Annual Project History, Calendar Year 1957, Volume VII (in part)
- USBR 1958 Eklutna Project, Annual Project History, Calendar Year 1958, Volume VIII (in part)
- USBR 1959 Eklutna Project, Annual Project History, Calendar Year 1959, Volume IX (in part)
- USBR 1964 Eklutna Project, Annual Project History, Calendar Year 1964, Volume XIV (in part)
- USBR 1967 Rehabilitation of Eklutna Project Features Following Earthquake of March 1964
Section 5: Description of Existing Environment
Section 5.1: Climate
- Anchorage 2019 Climate Action Plan
- Thoman and Walsh 2019 Alaska’s changing environment: documenting Alaska’s physical and biological changes through observations
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report
- Sass 2011 Characterizing Eklutna Glacier’s Response to Climate
- Sass 2012 Eklutna Glacier, An Overdeepened Alpine Glacier with an Unstable Response to Climate Change
- Sass et al. 2017 Geometry, mass balance and thinning at Eklutna Glacier
Section 5.2: Geology
- February 2020 Quarterly Update Call Meeting Minutes
- ADEC 2017 Section 401 Certificate of Reasonable Assurance
- Fortin et al. 2019 New approach to accessing age uncertainties – The 2,300-year varve chronology from Eklutna Lake, Alaska
- HDR 2016 Lower Eklutna River Dam Removal, Project Description to support application Section 404 Individual Permit: 2017 Dam Deconstruction and Sediment Relocation
- HDR 2016 Lower Eklutna Sediment Study (Draft)
- Loso et al. 2017 Evaluating Evidence for Historical Anadromous Salmon Runs in Eklutna Lake, Alaska
- MJA 2018 Eklutna Dam Periodic Safety Inspection (this document contains sensitive information and is therefore not available for public review)
- MJA 2020 February Quarterly Update Call Meeting Minutes
- Sass et al. 2017 Geometry, mass balance and thinning at Eklutna Glacier
- Section 905(b) Eklutna Watershed Study
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report
- USACE 2017 Section 404 Permit POA-2016-248
- USBR 1948 Eklutna Project, to serve 25% of all Alaskans
- USBR 1967 Rehabilitation of Eklutna Project Features Following Earthquake of March 1964
- USGS 1947 Geology of Eklutna Lake Dam Site and Conduit Route
- USGS 1967 Effect of the 1964 Earthquake on The Eklutna Hydroelectric Project
- USGS 2018 Anchorage Earthquake
Section 5.3: Water Resources
- ADEC 2013 Alaska Water Quality Criteria Manual for Toxic and Other Deleterious Organic and Inorganic Substances
- ADEC 2018 Water Quality Standards
- ADNR 1985 ADL 44944 State of Alaska Water Rights Certificate of Appropriation (Amended)
- ADNR 1985 LAS 2569 Finding of Fact and Conclusion of Law
- ADNR 1985 LAS 2569 Permit to Appropriate Water (Preferred Use)
- AL&P 1929 Eklutna Hydroelectric Project Report No. 5
- Harza-Ebasco 1984 Susitna Hydroelectric Project, Eklutna Lake Temperature and Ice Study
- Howes 1924 Eklutna Hydro Electric Project Report
- Laquier 2010 Differing Contributions of Heavily and Moderately Glaciated Basins to Water Resources of the Eklutna Basin
- NVE 2003 LAS 24334 Application for Reservation of Water
- NVE 2003 LAS 24335 Application for Reservation of Water
- NVE 2003 LAS 24336 Application for Reservation of Water
- NWS Eklutna Hydrology Report (Draft)
- R&M 1985 Eklutna Lake Suspended Sediment, Turbidity, and Temperature Data 1982-1984
- R&M 1986 Susitna Hydroelectric Project, Eklutna Lake Physical Limnology Studies
- Sass 2011 Characterizing Eklutna Glacier’s Response to Climate
- Sass 2012 Eklutna Glacier, An Overdeepened Alpine Glacier with an Unstable Response to Climate Change
- Sass et al. 2017 Geometry, mass balance and thinning at Eklutna Glacier
- Sawicki 2018 Temperature and Melt Rate Inversions in the Accumulation Zone of Southcentral Alaska’s Well-Studied Eklutna Glacier
- USGS 1947 Preliminary Report on Water Power Resources of Eklutna Creek
- USGS 1993 Glacier Runoff and Sediment Transport and Deposition in Eklutna Lake Basin
- USGS 15277600
- USGS 15277800
- USGS 15280000
- USGS 15280100
- USGS 15280200
Section 5.4: Fish and Aquatic Resources
- ADFG 2019 Eklutna River Aquatic Habitat Monitoring
- ADNR 2016 Chugach State Park Management Plan
- ADNR Chugach State Park Files, ADFG Lake Stocking
- APA 1992 Divestiture Summary Report
- HDR 2016 Lower Eklutna River Dam Removal, Project Description to support application Section 404 Individual Permit: 2017 Dam Deconstruction and Sediment Relocation
- Loso et al. 2017 Evaluating Evidence for Historical Anadromous Salmon Runs in Eklutna Lake, Alaska
- McLallen and Maddaloni 2019 Macroinvertebrate Taxonomic Comparison Between Lower Eklutna River and Thunderbird Creek
- MJA 2019 Technical Group Follow-up Meeting Minutes
- MJA 2019 Site Reconnaissance Trip Report
- NVE 2002 Eklutna River Fish Counts (updated version provided on 3-28-2022)
- NVE 2002 Eklutna River Fish Counts Methods
- NVE 2003 Eklutna River Fish Counts
- NVE 2020 Eklutna River Salmon Habitat Assessment
- NVE Traditional Knowledge of Eklutna Fish Resources(updated version provided on 11-21-2022)
- TU 2018 Eklutna River Workshop, Summary of Outcomes, Recommendations, and Future Needs
- USACE 2007 Habitat Assessment of the Lower Eklutna River
- USACE 2011 Eklutna River Aquatic Ecosystem Technical Report
- USACE 2017 Section 404 Permit POA-2016-248
- Ward 2010 Monitoring the efficacy of juvenile salmon off-channel habitat restoration projects in Southcentral Alaska
Section 5.5: Wetlands, Riparian, and Littoral Habitat
Section 5.7: Land Ownership and Management
- ADFG Unit 14C Eklutna Lake Management Area Map
- ADNR 2016 Chugach State Park Management Plan
- AWWU and ADNR 2001 Cooperative Agreement
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report
- MOA Property Information, Web App Viewer
- NVE 2014 Wetland Program Plan
Section 5.8: Recreational Use and Facilities
- ADFG 2019 Statewide Stocking Plan for Sport Fish 2019 – 2013
- ADFG 2020 Sport Fisheries Area Management Report
- ADFG 2020 Southcentral Recreational Angler Access Projects: Eklutna Tailrace
- ADNR 2016 Chugach State Park Management Plan
- ADNR Chugach State Park Website
- Lifetime Adventures, Eklutna Trips and Rentals
Section 5.9: Cultural Resources
- ACHP 1996 Memorandum of Agreement regarding the Transfer of Ownership of the Eklutna Hydroelectric Project
- ADFG 1981 Traditional Resource Uses in the Knik Arm Area: Historical and Contemporary Patterns
- ADFG 1987 The Upper Inlet Tanaina, Patterns of Leadership Among an Alaska Athabaskan People, 1741 – 1918
- ADFG 2004 Cook lnlet Customary and Traditional Subsistence Fisheries Assessment
- AHRS Data Repository
- Alaska Magazine 1971 Will Eklutna Survive?
- APA 1992 Environmental Assessment
- BLM, Iditarod National Historic Trail, Historic Overview
- BLM, Iditarod National Historic Trail
- CEMML 2010 Annual Report: Cultural Resources Survey, Fort Richardson, Alaska 2009
- Chandonnet 1979 The Once & Future Village of Ikluat/Eklutna
- Chandonnet 1991 On the Trail of Eklutna
- CIRI
- Cook Inlet Historical Society, Anchorage History
- De Laguna 1934 The Archaeology of Cook Inlet, Alaska (not available for public review due to copyright)
- Dumond and Mace 1968 An Archaeological Survey along Knik Arm
- Eklutna Historic Park
- Eklutna, Inc., Eklutna Dam Removal and Diversion Project
- HABS 1990 Shrine to the Theotokos and Old Church, Looking Southeast – St. Nicholas Russian Orthodox Churches, Eklutna
- Kari et al. 2012 Bibliography of Sources on Dena’ina and Cook Inlet Anthropology
- Kari and Fall 2003 Shem Pete’s Alaska, The Territory of the Upper Cook Inlet Dena’ina (not available for public review due to copyright)
- Leggett, Bel K’ikghil’ishen (Eklutna Alex)
- Lobdell 1984 An Archaeological Assessment of the Eklutna Water Project
- Mielke, The Alex Family of Eklutna Village, Alaska
- NVE
- NHG 2012 Phase I Cultural Resource Assessment of Bryant Army Airfield
- NPS 1972 Old St. Nicholas Russian Orthodox Church NRHP Nomination Form
- NPS 1980 Eklutna Power Plant NRHP Nomination Form, photos
- NPS 1980 Russian Orthodox Church Buildings and Sites in Alaska NRHP Nomination Form
- NPS 1982 Mike Alex Cabin NRHP Nomination Form, photos
- Reger 1998 Archaeology of the Northern Kenai Peninsula and Upper Cook Inlet
- Steele 1980 Archaeological Survey and Cultural Resources Overview, Fort Richardson, Alaska
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report
- Woodward-Clyde 1996 Eklutna Hydroelectric Project Mitigation Plan
Section 6: Project Effects, PMEs Suggested by Others, and Information Needs
Project Effects, PMEs Suggested by Others, and Information Needs
- ADFG 2019 Eklutna River Aquatic Habitat Monitoring
- ALICE 2020 Pumped Energy Storage for Alaska
- 1991 Fish and Wildlife Agreement
- MJA 2019 Technical Group Follow-up Meeting Minutes
- TU 2018 Eklutna River Workshop, Summary of Outcomes, Recommendations, and Future Needs
- USACE 2011 Eklutna River Aquatic Ecosystem Restoration Technical Report
- USFWS 2019 Upper Eklutna Fish Habitat Flow Assessment
RESOLUTIONS
This section contains resolutions that have been passed by the Project Owners, the Native Village of Eklutna, and other stakeholders regarding the requirements of the 1991 Fish and Wildlife Agreement for the Eklutna Hydroelectric Project.
Resolution Documents
- 2022 Birchwood Community Council Resolution
- 2022 Anchorage Assembly Resolution
- 2022 Native Village of Eklutna Resolution
- 2020 Alaska Federation of Natives Resolution
- 2020 Watershed & Natural Resources Advisory Commission Resolution
- 2019 Native Village of Eklutna Resolution
- 2019 Watershed & Natural Resources Advisory Commission Resolution
- 2018 Matanuska Electric Resolution
- 2017 Chugach Electric Resolution
- 2017 Anchorage Assembly Resolution
- 2016 Eklutna Valley Community Council Resolution
- 2000 Native Village of Eklutna Resolution