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Table
of Contents
Environmental
Assessment in Web Format
Abstract
Executive Summary
Introduction
Purpose and Need
Relationship to Other Plans
Overview of the Alternatives and
Environmental Assessment
Alternative 1: No
Action
Alternative 2: South
Fork Merced River Bridge Replacement (Preferred Alternative)
Environmentally Preferable Alternative
Alternative 1: No
Action
Alternative 2:
South Fork Merced River Bridge Replacement (Preferred Alternative)
Environmentally Preferable
Alternative
Letter
From The Superintendent
Chapter I: Purpose and Need
Introduction
Purpose of and Need for the Project
Planning Context
Management Goals
Public Scoping
Organization of this Environmental Assessment
Chapter II: Alternatives
Introduction
Alternative 1: No Action
Alternative 2: South Fork Merced River Bridge Replacement (Preferred
Alternative)
Alternatives Considered but Dismissed
Mitigation Measures for the Preferred Alternative
Summary of Environmental Consequences
Chapter III: Affected Environment
Introduction
Impact Topics Considered in this Assessment
Natural
Resources
Cultural
Resources
Social
Resources
Impact Topics Dismissed from Further Analysi
s
Natural
Resources
Cultural
Resource
s
Social
Resources
Regional
Setting
Project
Site Setting
Natural Resources
Geology,
Geohazards, and Soils
Hydrology,
Floodplains, and Water Quality
Wetlands
Biotic
Communities
Special-Status
Wildlife Species
Air
Quality
Soundscapes
and Noise
Cultural Resources
Archeological
Overview and Resources
Ethnographic
Overview and Resources
Cultural
Landscape Overview and Resources (Including Historic Sites and Structures)
Social Resources
Transportation
Visitor
Experience
Scenic
Resources
Park
Operations and Facilities
Chapter IV: Environmental Consequences
Introduction
Impact
Analysis
Cumulative
Impacts
Impairment
Methodologies and Assumptions
Channel
Morphology
Floodplains
Alternative 1: No Action
Natural
Resources
Cultural
Resources
Social
Resources
Socioeconomics
Visitor
Experience
Scenic
Resources
Park
Operations and Facilities
Alternative 2: Preferred Alternative
Natural
Resources
Cultural
Resources
Social
Resources
Chapter V: Merced Wild and Scenic River
Introduction
Wild and Scenic Rivers Act
Merced River Plan Overview
Analysis of Consistency with the Merced River Plan
Chapter VI: Consultation and Coordination
Introduction
Scoping History
Chapter VII: List of Preparers and Reviewers
Chapter VIII: Glossary and Acronyms
Chapter IX: Bibliography
Appendices
Appendix A: Regulations and Policies
Appendix B: Section 7 Determination
Appendix C: Special-Status Species Evaluation
Appendix D: Cumulative Projects
Appendix E: Draft Wetland Statement of Findings
Appendix F: Draft Floodplain Statement of Findings
List
of Figures
Figure
I-1 Yosemite National
Park and Vicinity
Figure
II-1 Existing South Fork
Bridge and Temporary Bailey Bridge
Figure
II-2 New South Fork Bridge
Figure
II-3 Wawona Area Map
Figure III-2. Faults in the Vicinity
of Yosemite National Park
Figure
III-3. Faults in the Vicinity of Yosemite National Park
Figure
III-5. California Air Basins
List
of Tables
Table
II-1 Summary of Environmental
Consequences
Table III-1.
Wawona Land-Use Limitations Based On Soil Type
Table
III-2. Recent Ozone and PM-10
Concentration Data for Yosemite National Park and Vicinity
Table
III-3. Air Basin Attainment /
Nonattainment Designations
Table
IV-1. Typical Noise Levels Associated with Construction Equipment
Table
V-1. Impacts of the Preferred
Alternative on Outstandingly Remarkable Values of the South
Fork Merced River
Table
B-1. Section 7 Evaluation for the
South Fork Merced River Bridge Replacement Project
Table
B-2. Impacts of the Preferred
Alternative on Outstandingly Remarkable Values of the South Fork Merced River
Table
C-1. Federal and State Threatened and Endangered Species and Species of Special
Concern
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