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SR 520 Pontoon Construction Project Environmental Documents

Pontoon Construction Project environmental documents

The Washington State Department of Transportation (WSDOT) has completed environmental analysis for the SR 520 Pontoon Construction Project.

The Federal Highway Administration has signed the Record of Decision, a document that provides concurrence with our plans to build a pontoon construction facility at the Aberdeen Log Yard site and pontoons at that facility. 

Upon receipt of the Record of Decision, we were are able to begin final engineering design and obtain construction permits for the project.

Construction began in February 2011 on the Pontoon Construction Project to build a new casting basin facility and 33 concrete pontoons for the new SR 520 floating bridge.

The Record of Decision follows our publication of the Draft Environmental Impact Statement in May 2010 and Final Environmental Impact Statement in December 2010.

Jan. 11, 2011 - Record of Decision

Record of Decision (pdf 4.0 mb) 
 


 

Dec. 2, 2010 - Final Environmental Impact Statement

Final EIS cover

Executive Summary (pdf 3.5 mb)

Table of Contents (pdf 1.2 mb)

Chapter 1 - Introduction to the Project (pdf 732 kb)

Chapter 2 - Project Alternatives (pdf 3.6 mb)

Chapter 3 - Environmental Effects 
    3.0 Introduction (pdf 732 kb) 
    3.1 Ecosystems 
        - Wetlands (pdf 1.2 mb)
        - Fish (pdf 2.6 mb)
        - Wildlife (pdf 149 kb)
    3.2 Geology and Soils (pdf 2.9 mb) 
    3.3 Hazardous Materials (pdf 597 mb) 
    3.4 Water Resources (pdf 1.4 mb) 
    3.5 Air Quality (pdf 282 kb) 
    3.6 Energy and Climate Change (pdf 228 kb) 
    3.7 Cultural Resources (pdf 2.2 mb) 
    3.8 Economics (pdf 61 kb) 
    3.9 Navigable Waterways (pdf 565 kb) 
    3.10 Noise (pdf 533 kb) 
    3.11 Public Services and Utilities (pdf 1.6 mb) 
    3.12 Land Use (pdf 1.6 mb) 
    3.13 Social Elements (pdf 2.6 mb) 
    3.14 Transportation (pdf 647 kb) 
    3.15 Visual Quality and Aesthetics (pdf 2.5 mb) 
    3.16 Section 4(f) Resources (pdf 397 kb)

Chapter 4 - Comparison of the Alternatives (pdf 155 kb)

Chapter 5 - Mitigation (pdf 658 kb) 

Chapter 6 - Other Considerations and Next Steps (pdf 204kb)

Chapter 7 - Public and Agency Comments on the Draft EIS (pdf 111 kb)

Attachments
    1 - Preparers
    2 - Distribution List
    3 - References
    4 - Glossary
    5 - Acronyms
    6 - Index
    7 - Appendices

Updated Appendices

B Description of Alternatives and Construction Techniques Discipline Report (pdf 8.6 mb)
T Draft Environmental Impact Statement Comments and Responses Report (pdf 10.2 mb)
U Summary of Effects Technical Memorandum (pdf 343 kb)


July 2010

SR 520 Pontoon Construction Project Draft Environmental Impact Statement Summary of Comments (pdf 3.45 mb)



May 28, 2010 - Draft Environmental Impact Statement



Cover of Draft EIS document

Executive Summary (pdf 2.7 mb)

Table of Contents (pdf 1.2 mb)
Chapter 1 - Introduction to the Project  (pdf 710kb)
Chapter 2 - Project Alternatives  (pdf 4.4 mb)
Chapter 3 - Environmental Effects 
    - Introduction  (pdf 1.1 mb)
    - Ecosystems  (pdf 3.5 mb)
    - Geology and Soils  (pdf 530 mb)
    - Hazardous Materials  (pdf 403  mb)
    - Water Resources  (pdf 1.3 mb)
    - Air Quality  (pdf 428 kb)
    - Energy and Climate Change  (pdf 396 kb)
    - Cultural Resources  (pdf 365 kb)
    - Economics  (pdf 218 kb)
    - Navigable Waterways  (pdf 249 kb)
    - Noise  (pdf 822 kb)
    - Public Services and Utilities  (pdf 314 kb)
    - Land Use  (pdf 289 kb)
    - Social Elements  (pdf 603 kb)
    - Transportation  (pdf 879 kb)
    - Visual Quality and Aesthetics  (pdf 2.7 mb)
    - Section 4(f) Resources  (pdf 215 kb)
Chapter 4 - Comparison of the Alternatives   (pdf 152 kb)
Chapter 5 - Preferred Alternative and Next Steps   (pdf 156 kb)

Attachments  (pdf 626 kb)

Appendices

A

Agency Coordination and Public Involvement Discipline Report  (pdf 3.7 mb)

B

Description of Alternatives and Construction Techniques Discipline Report  (pdf 4.2 mb)

C

Ecosystems Discipline Report
Part 1  (pdf 4.1 mb)
Part 2 
 - Part 1  (pdf 3.03 mb)
 - Part 2  (pdf 1.4 mb)

D

Geology and Soils Technical Memorandum 
 - Part 1  (pdf 1.0 mb)
 - Part 2  (pdf 5.9 mb)
 - Part 3  (pdf 171 kb)

E

Hazardous Materials Technical Memorandum 
 - Part 1  (pdf 4.4 mb)
 - Part 2  (pdf 6.0 mb)
 - Part 3  (pdf 7.2 mb)
 - Part 4  (pdf 3.1 mb)
 - Part 5  (pdf 2.4 mb)
 - Part 6  (pdf 3.3 mb)

F

Water Resources Discipline Report 
 - Part 1  (pdf 1.1 mb)
 - Part 2  (pdf 5.0 mb)
 - Part 3  (pdf 1.2 mb)

G

Air Quality Technical Memorandum  (pdf 3.8 mb)

H

Energy Technical Memorandum  (pdf 1.2 mb)

I

Cultural Resources Discipline Report and Technical Reports 
Volume 1
 - Part 1 (pdf 5.2 mb)
 - Part 2 (pdf 5.4 mb)
 - Part 3 (pdf 3.6 mb)
 - Part 4 (pdf 5.5 mb)
 - Part 5 (pdf 4.0 mb)
 - Part 6 (pdf 4.6 mb)
 - Part 7 (pdf 4.6 mb)
 - Part 8 (pdf 1.7 mb)
 - Part 9 (pdf 3.6 mb)
 - Part 10 (pdf 4.5 mb)
 - Part 11 (pdf 5.9 mb)
 - Part 12 (pdf 5.4 mb)
 - Part 13 (pdf 5.4 mb)
 - Part 14 (pdf 4.0 mb)
 - Part 15 (pdf 4.1 mb)
 - Part 16 (pdf 3.8 mb)
 - Part 17 (pdf 4.1 mb)
Volume 2 (pdf 6.5 mb)
Volume 3 (pdf 5.5 mb)

J

Economics Technical Memorandum  (pdf 1.1 mb)

K

Navigable Waterways Technical Memorandum  (pdf 4.1 mb)

L

Noise Technical Memorandum 
 - Part 1  (pdf 1.0 mb)
 - Part 2  (pdf 1.6 mb)
 - Part 3  (pdf 2.0 mb)
 - Part 4  (pdf 163 kb)

M

Public Services and Utilities Discipline Report  (pdf 2.0 mb)

N

Land Use Technical Memorandum  (pdf 2.4 mb)

O

Social Elements Discipline Report  (pdf 4.6 mb)

P

Transportation Technical Memorandum 
 - Part 1  (pdf 4.9 mb)
 - Part 2  (pdf 4.4 mb)
 - Part 3  (pdf 6.5 mb)

Q

Visual Quality and Aesthetics Technical Memorandum  (pdf 4.6 mb)

R

Section 4(f) Resources Technical Memorandum  (pdf 758 kb)

S

Indirect and Cumulative Effects Methods Memorandum  (pdf 1.6 mb)

Note: Updated PDF files for the Cultural Resources Discipline Report and Technical Reports were added on June 8, 2010. These updated files correct a PDF file error found in the previous online and CD versions.


List of public libraries where the EIS is available

Aberdeen Timberland Library
Elma Timberland Library
Hoquiam Timberland Library 
Grays Harbor College Library
McCleary Timberland Library
Montesano Timberland Library
Seattle Public Library Central Branch
University of Washington Suzzallo and Allen Libraries
Tacoma Main Library
Westport Timberland Library