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Henry Hagg Lake Resource Management Plan

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Henry Hagg Lake Resource Management Plan Henry Hagg Lake Resource Management Plan U.S. Department of the Interior Bureau of Reclamation Pacific Northwest Region Lower Columbia Area Office May 2004 Cowlitz ClatsopRegional Context MONTANA WASHINGTON Columbia %&'(I5 Clark IDAHO OREGON WA O S R I205 CALIFORNIA H %&'( NEVADA E I N G G O T N O N Multnomah Vancouver W il la Washington m Columbia e Tillamook t Henry Hagg Lake Study Area OP26 te %&'(I5 R iver Forest %&'(I84 Grove Hillsboro Cornelius Portland %&'(I205 Gresham Aloha uala Powellhurst-Centennial T tin R Beaverton iv er R iv e r Gaston Milwaukie Tigard Lake Oswego Oatfield OP47 Tualatin West Linn %&'(I205 Oregon City Yamhill Clackamas r Wi e v l lam ette Ri %&'(I5 McMinnville Marion Highway County Boundary Regional Location Map Stream State Boundary V Henry Hagg Lake RMP 0510 Miles 1:530,000 Source: ESRI, USBR, USGS, EDAW, 2003 P:\1e41401_Henry_Hagg\GIS\Project\mxd\RMP\Figure_Regional_Location.mxd HENRY HAGG LAKE Resource Management Plan U.S. Department of the Interior Bureau of Reclamation Approved: This Resource Management Plan was prepared by EDAW and JPA under contract for the Department of the Interior, Bureau of Reclamation, Pacific Northwest Region. Point of Contact: Karen Blakney U.S. Bureau of Reclamation Lower Columbia Area Office 825 NE Multnomah Street, Suite 110 Portland, OR 97232-2135 (503) 872-2796 Cowlitz ClatsopRegional Context MONTANA WASHINGTON Columbia '%&(I5 Clark IDAHO OREGON WA O S R I205 CALIFORNIA H &%'( NEVADA E I N G G O T N O N Multnomah Vancouver W il la Washington m Columbia e Tillamook t Henry Hagg Lake Study Area OP26 te '%&(I5 R iver Forest '%&(I84 Grove Hillsboro Cornelius Portland %&'(I205 Gresham Aloha uala Powellhurst-Centennial T tin R Beaverton iv er R iv e r Gaston Milwaukie Tigard Lake Oswego Oatfield OP47 Tualatin West Linn %&'(I205 Oregon City Yamhill Clackamas r Wi e v l lam ette Ri %&('I5 McMinnville Marion Highway County Boundary Regional Location Map Stream State Boundary V Henry Hagg Lake RMP 0 5 10 Miles 1:530,000 Source: ESRI, USBR, USGS, EDAW, 2003 P:\1e41401_Henry_Hagg\GIS\Project\mxd\RMP\Figure_Regional_Location.mxd HENRY HAGG LAKE RESOURCE MANAGEMENT PLAN Table of Contents CONTENTS Chapter 1 Introduction .............................................................................................................. 1-1 1.1 RMP Program and Policy................................................................................ 1-1 1.2 Purpose and Scope of the Plan ........................................................................ 1-1 1.3 Relationship to Tualatin Valley Water Supply Feasibility Study ................... 1-2 1.4 Location and Description of the RMP Study Area.......................................... 1-3 1.5 Project Summary ............................................................................................. 1-4 1.6 Overview of Public Involvement, Agency, and Tribal Coordination ............. 1-7 Chapter 2 Existing Conditions .................................................................................................. 2-1 2.1 Natural Resources............................................................................................ 2-1 2.1.1 Climate ................................................................................................ 2-1 2.1.2 Topography ......................................................................................... 2-1 2.1.3 Geology ............................................................................................... 2-2 2.1.4 Soils..................................................................................................... 2-2 2.1.5 Hydrology and Water Quality ............................................................. 2-9 2.1.6 Vegetation ......................................................................................... 2-15 2.1.7 Fish and Wildlife............................................................................... 2-23 2.1.8 Threatened, Endangered, and Sensitive (TES) Species .................... 2-30 2.2 Visual Resources ........................................................................................... 2-36 2.3 Noise.............................................................................................................. 2-38 2.4 Cultural Resources ........................................................................................ 2-39 2.4.1 Historical Overview .......................................................................... 2-39 2.4.2 Archeological Investigations............................................................. 2-40 2.4.3 Traditional Cultural Properties (TCPs) ............................................. 2-42 2.5 Indian Sacred Sites ........................................................................................ 2-43 2.6 Indian Trust Assets........................................................................................ 2-43 2.7 Socioeconomics............................................................................................. 2-44 2.7.1 Demographic Profile ......................................................................... 2-44 2.7.2 Economic Setting .............................................................................. 2-44 2.7.3 Park Funding ..................................................................................... 2-45 May 2004 TABLE OF CONTENTS 1i1 HENRY HAGG LAKE RESOURCE MANAGEMENT PLAN CONTENTS Chapter 3 Existing Land Use and Management........................................................................ 3-1 3.1 Land Status and Management ......................................................................... 3-1 3.1.1 Project Facilities and General Operations ........................................... 3-1 3.1.2 Reservoir Operations........................................................................... 3-1 3.1.3 Land Status and Management ............................................................. 3-2 3.1.4 Contractual Agreements ...................................................................... 3-5 3.1.5 Easements............................................................................................ 3-6 3.1.6 Encroachments on Reclamation Lands ............................................... 3-6 3.1.7 Adjacent Land Use Patterns ................................................................ 3-7 3.2 Public Services and Utilities............................................................................ 3-8 3.2.1 Electrical.............................................................................................. 3-8 3.2.2 Potable and Non-Potable Water .......................................................... 3-8 3.2.3 Wastewater .......................................................................................... 3-9 3.2.4 Solid Waste.......................................................................................... 3-9 3.2.5 Fire Protection and Emergency Services........................................... 3-10 3.2.6 Law Enforcement .............................................................................. 3-11 3.3 Recreation...................................................................................................... 3-12 3.3.1 Recreation Facilities .......................................................................... 3-12 3.3.2 Recreation Activities and Use Levels ............................................... 3-18 3.3.3 Park Security and Safety ................................................................... 3-22 3.3.4 Special Events ................................................................................... 3-23 3.4 Transportation and Access ............................................................................ 3-24 3.4.1 Major Arterials .................................................................................. 3-24 3.4.2 Local Roads....................................................................................... 3-25 3.4.3 Parking............................................................................................... 3-25 3.4.4 Trails.................................................................................................. 3-25 3.4.5 Reservoir/Boat Access ...................................................................... 3-26 3.4.6 Accessibility ...................................................................................... 3-27 Chapter 4 The RMP Planning Process...................................................................................... 4-1 4.1 Overview ......................................................................................................... 4-1 4.2 Public Involvement Program........................................................................... 4-3 4.2.1 Newsbriefs........................................................................................... 4-3 4.2.2 Public Meetings................................................................................... 4-3 4.2.3 Ad Hoc Work Group ........................................................................... 4-3 4.2.4 World Wide Web................................................................................. 4-5 4.3 Tribal Consultation.......................................................................................... 4-5 4.3.1 Overview of Government-to-Government Consultation with Tribes................................................................................................... 4-5 4.3.2 National Historic Preservation Act Requirements
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