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APPENDIX B Summary of State Projects within Snohomish County
This appendix is included in your selections.

Appendix B details projects that are consistent with the constrained plan component of the Transportation 2040 investments project list and are used in support of the county’s comprehensive plan. These projects seek to provide roadway improvements that involve the addition of interchanges, freeway lane capacity and capacity enhancements to state highways within Snohomish County. The projects presented in Appendix B would improve the capacity and operations for highways designated as HSS (highways of statewide significance) and non-HSS (regionally significant state highways).

Key to project listing columns

COLUMN

DESCRIPTION

Title

Investment title, usually with the facility name first.

Project Limits (From - To)

The starting location for a project to the ending location of a project

Description

Description of the project outcomes

Sponsor

Agency that will take the lead in implementation

T2040 Status

The Planning Status of the project

T2040 Completion Date

The year in which the sponsor expects the project to be completed.

Appendix B – Transportation 2040 - State Route Investments

Summary of State Projects Within Snohomish County

State Projects

Title

Project Limits (From-To)

Description

Sponsor

T2040 Status

T2040 Completion Date

US 2: Trestle Widening - Stage 1

I-5 to SR 204

Build a new westbound US-2 structure over Ebey Slough for the future configuration of 2 general purpose lanes and 1 HOV lane. Realign the westbound SR 204 to westbound US-2 on-ramp utilizing the new westbound structure, improving the weaving conditions for the interchange.

WSDOT

Candidate

2020

US 2: Monroe Bypass - phase 1

North of the SR 522 I/C- to

Construct a two lane SR 522 extension to the north and terminate at Chain Lake Road that connects to the local street system

WSDOT

Candidate

2020

US 2: Monroe Bypass - phase 2 & 3

(West of) SR 522 to Monroe east City limits

Construct a four-lane, limited access bypass around Monroe on new alignment to the north of the city. This project could be constructed in two stages.

WSDOT

Candidate

2020

I-5 HOV to HOT lane Conversion: I-405 to US 2

I-405 to US 2

Convert HOV lanes to HOT lanes. Assume existing HOV conversion and shoulder for dual HOT lanes. Cost does not include shoulder prep.

WSDOT

Candidate

2015

I-5: 220th St. SW to 44th Ave W

220th St SW to 44th Ave W

Construct a northbound auxiliary lane.

WSDOT

Candidate

2025

I-5/44th Avenue Interchange improvements

196th St SW to 220th St W

Completion of existing half diamond interchange by adding access to the north. Project includes two braided ramps.

Lynnwood

Candidate

2020

I-5 @ 196th St (SR 524) interchange Northbound Braided Ramp project

I-5 @ 196th St

This project adds a braided ramp NB at the I-5/ 196th St I/C

WSDOT

Candidate

2030

I-5 @ SR 96 /128th St SW

SR 96/128th St. SW I/C

Reconstruct interchange. Current concept is for a SPUI

WSDOT

Candidate

2035

I-5 @ 100th and Everett Mall: South Everett interchange improvement

SR 527/South Broadway I/C to SB I-5; 7th Avenue SE

Construct a new crossing under I-5 at 100th St and provide NB and SB HOV access south of SR 526/SR527/South Broadway interchange. This entails a new on-ramp from NB ever mall way to SB I-5 Undercrossing at 100th St. SE which terminates at E side of freeway. This involves an arterial under I-5 then surface on W side of I-5. Those arterial improvements extend on that side up to 7th. NB Everett mall way to SB I-5 (on collector distributor on W side of I-5) starts from 526 to SB I-5 - on ramp traffic will connect

WSDOT

Candidate

2030

I-5 @ 41st Street I/C access improvement

Colby to 3rd Ave

41st St Interchange improvement, improvement of arterial approaches and connections

Everett

Candidate

2009

I-5 @ 88th St. N interchange

I-5 @ 88th Street NE I/C

Reconstruct interchange to a SPUI configuration

WSDOT

Candidate

2015

I-5 @ 116th ST NE interchange improvements

5429 I-5 (at 116th ST NE Interchange)

Reconstructs an existing diamond interchange into a Single Point Urban Interchange with greater capacity (more lanes on the ramps and on 116th ST NE across I-5) and less delay for improved mobility and increased safety

Tulalip Tribes

Candidate

2015

SR 9 Widening: 212th St. SE to 176th St. SE

212 St SE to 176th St SE

Widen SR 9 to 4/5 lanes

WSDOT

Approved

2015

SR 9 Widening: SR 522 to 212th st SE

SR 522 to 212th

Widen SR 9 to 4/5 lanes

WSDOT

Approved

2011

SR 9

176th St SE to SR 96

Widen to four/ five lanes.

WSDOT

Candidate

2030

SR 9

Marsh Rd to Sno River bridge

Widen to 4 lanes and intersection improvements at Marsh Road

WSDOT

Candidate

2030

SR 9 Snohomish River Bridge

Sno River bridge

Replace bridge with new 4-lane bridge across river. Also, new 4-lane overflow bridge south of Snohomish River with ramp and interchange improvements.

WSDOT

Candidate

2030

SR 9

Sno bridge to US 2

Widen to 4 lanes and intersection improvements

WSDOT

Candidate

2030

SR 9/US 2 interchange

SR 9 @ US 2

Reconstruct the SR 9/US 2 I/C

WSDOT

Candidate

2030

SR 9

US 2 to Market PL

Widen to 4/5 lanes from US-2 to Lake Stevens Road

WSDOT

Candidate

2035

SR 9/ SR 204 intersection improvement

SR 9 / SR 204 Intersection

Widen SR 9 for both northbound and southbound to provide one additional through lane at the SR 9/SR 204 intersection. A grade separated option is also being evaluated.

WSDOT

Candidate

2020

SR 9

Market PL to Lundeen

Add third NB and third SB through lanes

WSDOT

Candidate

2015

SR 9: Lundeen Pkwy to SR 92

Lundeen Parkway to SR 92

This project adds new northbound and southbound SR-9 through lanes, improves or adds the left and right turn lanes on northbound and southbound SR-9 as needed, adds a left turn lane and extends the right turn lane on SR 92, and upgrades illumination and signal systems at Lundeen Parkway, Soper Hill Rd and SR 92 intersections. The project will treat and detain new impervious stormwater runoff.

WSDOT

Approved

2013

SR 99/Evergreen Way. 148th ST SW to airport rd

148th Street SW to Airport Road

Construct BAT lanes on Evergreen Way / Highway 99 from 148th Street SW to airport Road.

Candidate

2020

SR 99/Evergreen Way

115th Street to Airport Road

Widen Evergreen Way from 5 to 7 lanes, with curb, gutters and sidewalks and drainage improvements.

WSDOT

Candidate

2012

I-405 Corridor: SR 522 to I-5 (widening between NE 195th St to SR 527)

NE 195th to SR 527

(a) Add 2 lanes NB and SB, except 1 lane NB between NE 195th St. and SR 527 where NB lane previously built, resulting in 5 lanes (1 HOV & 4 GP or 2 HOV & 3 GP) in each direction. Includes the 4 ft. managed lane buffer.

WSDOT

Candidate

2030

SR 522 @ Paradise Lake Road Interchange

Paradise Lake Road

Construct a new grade separated diamond interchange.

WSDOT

Candidate

2020

SR 522 @ Paradise Lake Road to Snohomish River - Widening

Paradise Lake Road to Snohomish River

Add two lanes converting a two lane highway to a four lane divided highway. Complete construction of the Fales/Echo Lake Interchange.

WSDOT

Candidate

2020

SR 522 (Nickel)

Snohomish River bridge to US 2

This project will widen SR 522 from the existing two lanes to four lanes with median separation from the Cathcart Road vicinity (Snohomish River Bridge) to US 2. The proposed action evaluated in this EA includes a new bridge across the Snohomish River, a wildlife crossing near milepost 22, improvements to the 164th St. SE (W Main St) interchange, and a new ramp connection and improvements to the US 2 interchange.

WSDOT

Approved

2020

SR 524 (196th St SW) Widening

48th Ave W to 37th Ave W

Increase capacity of existing major east-west 5 lane arterial by increasing roadway section to 7 lanes, curb, gutter and sidewalk (12 feet). The City of Lynnwood is proposing BAT lanes on this corridor but this is still subject to public process.

Lynnwood

Candidate

2012

SR 524

24th Ave to SR 527

Widen to five lanes adding two general purpose lanes and a wo-way-left-turn-lane.

WSDOT

Approved

2015

SR 529 - Ebey Slough Bridge 529/25 Replacement

MP 6.21 to MP 6.35

This project will replace the existing Ebey Slough Bridge, 529/25, with a new fixed span structure and remove the existing bridge structure. The bridge will be widened from two to four lanes to match the four-lane roadway sections immediately before and after the bridge.

WSDOT

Approved

2010

SR 529 Interchange

SR 529 to I-5

Complete the current half interchange by constructing a new Interstate 5 northbound off-ramp onto SR 529 and new southbound on-ramps from SR 529 to Interstate 5

Marysville

Candidate

2018

SR 531

43rd Ave to SR 9

Four-lane widening with intersection improvements

WSDOT

Candidate

2030