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SR 520 - Project Permits

As part of the environmental-compliance process for the I-5 to Medina project, WSDOT conducted extensive studies and analysis in accordance with the National Environmental Policy Act, the State Environmental Policy Act, the federal Endangered Species Act, and other laws and regulations. The process also required WSDOT to apply for numerous federal, state, and local permits.
 
All permits needed to replace the vulnerable SR 520 floating bridge were issued by early 2012, allowing WSDOT to proceed with the project. Some of the permits subsequently were modified or amended.

Were the permit applications based on the selected alternative design?

Yes, the permit applications were based on the design of the selected alternative, which WSDOT evaluated in the final environmental impact statement as the "preferred alternative." This alternative was selected in the record of decision, which was issued by the Federal Highway Administration in August 2011.

How were permitting agencies involved in the project?

WSDOT worked closely with local, state and federal agencies throughout the planning and design process on issues such wetland and aquatic mitigation, in-water construction, stormwater, and fish passage.

Agency staff provided valuable input and feedback during the design process. Their feedback resulted in fewer impacts to natural resources, and helped the project team identify appropriate mitigation for impacts that could not be avoided or minimized. 

Permits issued for the SR 520, I-5 to Medina Project

Below are many of the environmental reports, analyses and permits issued for the SR 520, I-5 to Medina Project. Some of these documents relate specifically to the 2016-17 removal of the old SR 520 floating bridge from Lake Washington. 

Section 404 Individual Permit, Section 10 Individual Permit
U.S. Army Corps of Engineers, Seattle District
 

NWS-2008-1246 (pdf 8.41 mb) 2012
Modification 1 (pdf 6.7mb) 2012
Modification 2 (pdf 596kb) 2013
Modification 3 (pdf 45kb) 2013
Modification 4 (pdf 327kb) 2014
Modification 5 (pdf 80kb) 2014
Modification 6 (pdf 77kb) 2015
Modification 7 (pdf 49kb) 2015
Modification 8 (pdf 82kb) 2015
Modification 9 (pdf 55 kb) 2016
Permit revision (pdf 5 mb) 2016

General Bridge Permit
U.S. Coast Guard

1-12-13 (pdf 1024 kb) 2012
Amendment (1a-12-13) (pdf 493 kb) 2014

Section 401 Water Quality Certification
Department of Ecology

Order 9011 (pdf 1.35 mb) 2012
Amendment 1 (pdf 218kb) 2012
Amendment 2 (pdf 229kb) 2012
Amendment 3 (pdf 568kb) 2013
Amendment 4 (pdf 1.2mb) 2014
Amendment 5 (pdf 754 kb) 2015

Section 401 Water Quality Certification / Construction Water Quality Monitoring and Protection Plan
Kiewit/General/Manson (Department of Ecology approval)

DOE-Approved WQMMP (pdf 338 kb) 2016
DOE-Approved WQMMP (pdf 304kb) 2016

WQMPP Supporting Documents
Department of Ecology

Department of Ecology Emails, March-May 2016 (pdf 8.5 mb)
Department of Ecology Emails, May-June 2016 (pdf 6 mb)
CWQMPP Revision 5 (pdf 748 kb) 2016
WQMPP Approval Timeline (pdf 80 kb) 2016
June 2016 Inspection Photos (pdf 2.5 mb) 2016
CWQMPP Revision 6 (pdf 2 mb) 2016
CWQMPP Revision 7 (pdf 343 kb) 2016
CWQMPP Revision 8 (pdf 12.8mb) 2016

Inspection Reports: SR 520 floating bridge decommissioning
Department of Ecology

DOE Inspection Report (pdf 30 kb) 2016
DOE Inspection Report (pdf 36 kb) 2016
DOE Inspection Report (pdf 40 kb) 2016

Kenmore Area Water and Sediment Analysis
Department of Ecology

DOE Evaluation Report (pdf 7mb) 2013
DMMP Poster (pdf 199kb) 2013

Department of Health

Health Consultation (pdf 652kb) 2013
Consultation fact sheet (pdf 218kb) 2013

Coastal Zone Management Consistency Certification
Department of Ecology

CZM Consistency (pdf 94kb) 2012

NPDES Construction Stormwater General Permit
Department of Ecology

NPDES Permit (pdf 3.6 mb) 2015

Hydraulic Project Approval
Department of Fish & Wildlife

125757-1 (pdf 45 kb) 2012
125757-2 (pdf 46kb) 2012
125757-3 (pdf 46kb) 2012
125757-4 (pdf 46kb) 2012
125757-5 (pdf 46 kb 2012
125757-6 (pdf 47kb) 2012
125757-7 (pdf 44kb) 2013
125757-8 (pdf 46kb) 2013
125757-9 (pdf 46kb) 2013
125757-10 (pdf 46 kb) 2014
125757-11 (pdf 46 kb) 2014
125757-12 (pdf 47 kb) 2014
2014-4-448-01 (pdf 1 mb) 2014
2014-4-448-02 (pdf 1mb) 2015
Minor Modification (pdf 112 kb) 2015
2014-4-448-03 (pdf 1 mb) 2015
Minor Modification (pdf 53kb) 2015
2014-4-448-04 (pdf 1mb) 2015
2014-4-448+05 (pdf 1019 kb) 2016
2014-4-448+06 (pdf 1mb) 2016

Shoreline Substantial Development Permit (Master Use Permit [MUP]) / Conditional Use Permit
City of Seattle, Department of Ecology

Decision 3011843 (pdf 913 kb) 2012
(SDP) 2012-NW-11063 (pdf 67KB) 2012
MUP 3011843 (pdf 827kb) 2013
Admin update for demolition (pdf 265kb) 2016

Temporary Noise Variance (latest version, variances are issued for two-week durations)
City of Seattle

3025224 (pdf 76 kb) 2016
3025226 (pdf 76 kb) 2016
3025227 (pdf 76 kb) 2016

Shoreline Substantial Development Permit / Conditional Use permit
City of Medina, Department of Ecology

SDP 2011-03 Revised (pdf 672 kb) 2016
SDP 2011-03 (pdf 1.5mb) 2012
CUP 277 (pdf 432kb) 2012

Technical Noise Variance
City of Medina

PL-12-001 (pdf 900 kb) 2012
TECHNICAL-16-001 (pdf 7.7 mb) 2016

Biological Assessment
WSDOT

Technical memorandum (pdf 5.73 mb) 2009
Parts 1-3 (pdf 16.8 mb) 2010
Parts 4-7 (pdf 8.1 mb) 2010
References and appendices (pdf 4.1 mb) 2010

Biological Opinion
U.S. Fish and Wildlife Service

13410-2011-F-0063 (pdf 2.42 mb) 2011
13410-2011-F-0063-R001 (pdf 3.7 mb) 2012
13410-2011-F-0063-R002 (pdf 279 kb) 2012
13410-2011-F-0063-R003 (pdf 431 kb) 2013
13410-2011-F-0063-R004 (pdf 453 kb) 2013
13410-2011-F-0063-R005 (pdf 264 kb) 2015
13410-2011-F-0063-R006 (pdf 401 kb) 2016
13410-2011-F-0063-R007 (pdf 2.6 mb) 2016

Biological Opinion
National Marine Fisheries Service

2010/05723 (pdf 7.62 mb) 2011
2011/05917 (pdf 116kb) 2012
NWR-2012-9537 (pdf 116 kb) 2013
NWR-2013-10358 (pdf 448 kb) 2014
WCR-2014-1665 (pdf 1.4 mb) 2015
WCR-2015-3817 (pdf 340 kb) 2015
WCR-2016-4931 (pdf 547 kb) 2016

Administrative Order to KGM for Barge Operations
Department of Ecology

Docket #9952 (pdf 1.1mb) 2013

Environmental Compliance Assurance Procedure (ECAP)
WSDOT

Reportable Event, May 3 (pdf 48 kb) 2016
Reportable Event, May 19 (pdf 52 kb) 2016
Reportable Event, June 28 (pdf 52 kb) 2016
Reportable Event, July 7 (pdf 152 kb) 2016
Reportable Event, July 12 (pdf 52 kb) 2016

NEPA/SEPA Documents

SR 520 Bridge Replacement and HOV Project Draft Environmental Impact Statement
FHWA, WSDOT, Sound Transit

2006 Draft EIS 2006

SR 520, I-5 to Medina: Bridge Replacement and HOV Project Supplemental Draft Environmental Impact Statement
FHWA, WSDOT

2010 Supplemental Draft EIS 2010

SR 520, I-5 to Medina: Bridge Replacement and HOV Project Final Environmental Impact Statement
FHWA, WSDOT

2011 Final EIS 2011

SR 520, I-5 to Medina: Bridge Replacement and HOV Project Record of Decision
FHWA

2011 Record of Decision (pdf 4.99 mb) 2011

SR 520, I-5 to Medina: Bridge Replacement and HOV Project SEPA Addendum (Public Place Designation)
WSDOT

Public Place Designation (pdf 1.1mb) 2011

SR 520, I-5 to Medina: Bridge Replacement and HOV Project SEPA Addendum (Floating Bridge and Landings)
WSDOT

Floating Bridge and Landings (FB&L) Addendum (pdf 2.4mb) 2011

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (Kenmore Yard)
FHWA, WSDOT

FB&L Kenmore Yard (#1) Addendum (pdf 4mb) 2011

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA Environmental Reevaluation (Floating Bridge and Landings)
FHWA, WSDOT

Floating Bridge and Landings (#2) Addendum (pdf 5.7mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Pontoon Outfitting and Moorage at the Port of Tacoma East Blair Berth 1 Memorandum
FHWA, WSDOT

Pontoon Outfitting and Moorage (Tacoma) (pdf 1.85mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Proposed Changes to Construction Elements and Delivery Methods for the Floating Bridge and Landings Phase of the Project Memorandum
FHWA, WSDOT

Changes to FB&L Construction Elements (pdf 1.2mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Revised Design of the Temporary Eastside Overwater Staging Area Memorandum
FHWA, WSDOT

FB&L Eastside Staging Area (pdf 1.8mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (Kenmore Yard Update)
FHWA, WSDOT

FB&L Kenmore Yard (#2) (pdf 3.5mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Additional Geotechnical Investigations Memorandum
FHWA, WSDOT

Geotechnical Investigations (pdf 1.97mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Increased Peak Construction Truck Trips Memorandum
FHWA, WSDOT

Peak Construction Truck Trips (pdf 2.2 mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (Floating Bridge and Landings Proposed Final Design Features)
FHWA, WSDOT

FB&L Final Design Features (pdf 6.5 mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Installation of Additional Moorage Buoys Memorandum
FHWA, WSDOT

FB&L Moorage Buoys (pdf 1.8mb) 2012

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Rescind Changes to Stormwater Management for the Floating Bridge Memorandum
FHWA, WSDOT

Stormwater Management (pdf 813 kb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (Temporary Westside Over-water Staging Area)
FHWA, WSDOT

Westside Staging Area (pdf 3.9mb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (West Connection Bridge)
FHWA, WSDOT

West Connection Bridge (pdf 4.9mb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Pontoon Repairs at Vigor Industrial Drydocks Memorandum
FHWA

Pontoon Repairs at Vigor (pdf 2.3 mb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Pontoon Outfitting and Moorage at Port of Tacoma Terminal 7 Memorandum
FHWA, WSDOT

Pontoon Outfitting and Moorage (Tacoma) (#2) (pdf 1.5mb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Pontoon Repairs with Coffer Cell Memorandum
FHWA, WSDOT

Coffer cell (pdf 2.4mb) 2013

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- West Approach Bridge North Memorandum
FHWA, WSDOT

West Approach Bridge North (WABN) (pdf 10.4 mb) 2014

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- West Approach Bridge North, Foster Island Refinements Memorandum
FHWA, WSDOT

WABN Foster Island (pdf 3.0 mb) 2014

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- West Approach Bridge North, Design Refinement at Foster Island Memorandum
FHWA, WSDOT

WABN Foster Island (#2) (pdf 2.4 mb) 2014

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Tolling Equipment Final Design Memorandum
FHWA, WSDOT

Tolling Equipment (pdf 1.75 mb) 2014

SR 520, I-5 to Medina: Bridge Replacement and HOV Project – Tolling Equipment Installation Technical Memorandum
FHWA, WSDOT

Tolling Installation (pdf 926 kb) 2016

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Geotechnical Investigation Update Memorandum
FHWA, WSDOT

Geotechnical Investigations (#2) (pdf 2.0 mb) 2015

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- Changes to Eastside Construction Haul Routes and Truck Trips Memorandum
FHWA, WSDOT

Haul Routes and Truck Trips (pdf 1.13 mb) 2015

SR 520, I-5 to Medina: Bridge Replacement and HOV Project -- First Amendment to the Section 106 Programmatic Agreement Memorandum
FHWA, WSDOT

Section 106 Programmatic Agreement (pdf 2.79 mb) 2016

SR 520, I-5 to Medina: Bridge Replacement and HOV Project NEPA/SEPA Environmental Reevaluation (Floating Bridge Demolition)
FHWA, WSDOT

Floating Bridge Demolition (pdf 4.04 mb) 2016