AGREEMENT # NAME PROJECT TITLE START DATE END DATE GCB 2092 Attorney General’s Office SR530 Oso Landslide Geotechnical Study 07/06/2015 Work Completion GCB 2376 Bainbridge Island Metropolitan Park & Bainbridge Island Trail License Agreement No. GCB 2376 04/19/2016 03/31/2036 Recreation District GCB 3501 Benton-Franklin Council of Governments Benton-Franklin TMA, MPO, and RTPO 07/01/2021 06/30/2023 GCB 3451 Central Regional Transit Sound Transit (ST) East Link Project, Preliminary Hydrologic Report Analysis, Tacoma pending Authority Dome Link Extension Project GCA 5228 Central University Master Agreement 07/05/2007 06/30/2023 GCB 1181 Chelan County Public Works US 2 / US 97A West of Wenatchee Paving and I/S Improvements 04/17/2012 Work Completion GCB 1520 Chelan County Public Works Burch Mountain Road Maintenance 06/04/2013 06/04/2033 GCB 1975 Chelan Douglas Transportation Council Chelan Douglas Transportation Council Interlocal Agreement 02/19/2015 02/18/2025 GCB 3052 Chelan Douglas Transportation Council US 2 Upper Wenatchee Valley Transportation Study pending GCB 1360 Chelan Douglas Transportation Council Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 07/11/2016 Work Completion in the Chelan-Douglas Transportation Council Metropolitan Planning Area. GCB 3502 Chelan-Douglas Transportation Council Chelan-Douglas Transportation Council (CDTC) MPO and RTPO 07/01/2021 06/30/2023 GCB 3357 City of Aberdeen Grays Harbor College Neighborhood Connection pending GCB 3379 City of Arlington Temporary Signal System pending GMB 1032 City of Arlington Welcome to Arlington Sign SR 9, SR 531/172nd Street NE and Eaglefield Drive 09/18/2013 Work Completion GCB 2504 City of Auburn SR 164 - Muckleshoot to Dogwood 02/16/2017 Work Completion GCB 2572 City of Auburn SR 164 / SR 18 to 17th St SE Paving & ADA Compliance 9/17/2017 9/17/2022 GCB 3246 City of Auburn SR 164th North Sidewalk Improvements 07/29/2019 Work Completion GCB 2374 City of Bainbridge Island SR305 Sound to Olympics Trail 03/18/2016 Work Completion GCB 2477 City of Bellevue I-405, Renton to Bellevue Express Toll Lanes 09/30/2019 06/30/2024 GCB 2491 City of Bellevue Mountains to Sound Greenway Trail 11/07/2016 Work Completion GCB 2505 City of Bellevue I-405, Renton to Bellevue Express Toll Lanes Program 09/30/2019 06/30/2024 GCB 2680 City of Bellevue Richards Road and Lake Hills Connector Overlay 07/13/2017 Work Completion GCB 2984 City of Bellevue 142nd Pl SE Bikeway Improvements 04/24/2018 Work Completion GCB 3053 City of Bellevue 2018 Overlay Program (Lakemont Blvd) 08/07/2018 Work Completion GCB 3356 City of Bellevue Mountains to Sound Greenway Trail Phase II (132nd to 142nd) 04/21/2020 Work Completion GCB 3404 City of Bellevue SE Eastgate Way Bike Lane 09/03/2020 Work Completion GCB 3433 City of Bellevue 520 Trail Corridor Bike Project 12/14/2020 Work Completion GCB 3058 City of Bellingham Paving and ADA SR 542 Britton Road 08/08/2018 Work Completion GCB 3409 City of Bellingham I-5 Northbound on-ramp at Bakerview Road Improvement 10/19/2020 Work Completion GCB 2907 City of Bingen Grade Separation Agreement 06/01/2018 Work Completion GCB 3029 City of Blaine Hughes Avenue Reconstruction Project Peace Portal Dr to Odell Street 07/20/2018 Work Completion GCB 2509 City of Bonney Lake SR410 / 204th 01/05/2017 Work Completion GCB 1881 City of Bothell North Creek Trail Improvements, Phase 05/23/2014 Work Completion

Page 1 of 13 GCB 3026 City of Bothell SR 522 Stage 3 Improvements 07/30/2018 Work Completion (West of SR 522 and 83rd Pl NE) GCB 3456 City of Bothell NE 160th Overlay 03/04/2021 Work Completion GCB 3312 City of Carnation Tolt Avenue Central Business District Improvements 01/22/2020 Work Completion GCB 1989 City of Centralia Regional Decant facility 06/30/2017 06/30/2045 GCB 3483 City of Centralia SR 507/Noble Ln to First St Including Couplet with Exceptions - ADA 04/29/2021 12/31/2022 GCB 3373 City of Cle Elum SR 903 and Stafford Street Sidewalk Improvements 07/06/2020 12/31/2021 GCB 2960 City of Clyde Hill (City of Medina) 84th Avenue NE Improvements - Phase II pending GCB 2992 City of Colfax Engineering analysis of Colfax Bridges pending GCB 3214 City of Covington SR 516 and 204th intersection widening/improvements and traffic signal installation 04/26/2019 Work Completion GCB 3411 City of Covington Covington Connector 12/9/2016 Work Completion GCB 2959 City of Des Moines Barnes Creek Fish Passage 04/25/2018 04/25/2023 GCB 1579 City of Duvall SR 203 Coe Clemons Creek - Chronic Environmental Deficiency (CED) 08/04/2014 Work Completion GCB 3304 City of East Wenatchee pending GCB 2529 City of Eatonville Center Street Signal project 02/16/2017 Work Completion GCB 3315 City of Edgewood Interlocal Funding Agreement pending GCB 3560 City of Edgewood SR 161 & Emerald St. Signal Improvements 08/10/2021 08/10/2022 GCB 3406 City of Edmonds Edmonds Pedestrian Enhancement Project 09/08/2020 Work Completion GMB 1122 City of Edmonds City of Edmonds Gateway Sign 01/02/2018 Work Completion GMB 1165 City of Everett City Bridge emergency repair 03/12/2020 Work Completion GCB 3289 City of Federal Way South Dash Point Road Gap 11/13/2019 Work Completion GCB 3359 City of Federal Way Adaptive Signals 10/3/2019 Work Completion GCB 3462 City of Federal Way Dash Point Road/47th Avenue Roundabout 2/26/2020 Work Completion GCB 3481 City of Federal Way Pacific Highway Nonmotorized Trail 9/14/2020 Work Completion GCB 2196 City of Ferndale I-5 NB Nooksack River Bridge to Blaine Paving 10/27/2015 Work Completion GCB 2982 City of Ferndale I-5 NB Ramps/Portal Way pending GCB 1029 City of Fife I-5 Portland Avenue to Port of Tacoma Road - NB HOV 01/28/2013 Work Completion GCB 2930 City of Fife SR 99 Stormwater and Pedestrian Improvements 01/23/2018 Work Completion GCB 2942 City of Fife Port of Tacoma Road Interchange 02/13/2018 Work Completion GCB 3123 City of Fife North segment of SR 167 Completion Project 04/16/2019 06/30/2026 GCB 3447 City of Goldendale US 97/ Centerville Rd Vic to Ski Lodge Rd Vic Paving / Klickitat County 03/09/2021 12/31/2021 GCB 3310 City of Issaquah pending GMB 1014 City of Issaquah I- 90, Issaquah Highlands Parcel 2 Storm Outfall - City Project 10/25/2011 Work Completion GCB 3540 City of Kelso Pavement Rehabilitation on North Pacific, 4th Avenue, 5th Avenue, and Oak Street 07/27/2021 12/31/2021 GCB 3138 City of Kennewick US 395 - Ridgeline Drive Intersection Improvement - Construct Interchange 09/08/2020 12/31/2023 GCB 2393 City of Kent South 224th Street Bridge 12/09/2016 Work Completion GCB 2452 City of Kent SR 515 (108th Ave SE) / SE 208th Intersection Improvement 08/24/2016 Work Completion

Page 2 of 13 GCB 3093 City of Kent Interlocal Funding Agreement Between WSDOT and the City of Kent Public Works 11/05/2019 12/31/2025 Department for the SR 509 Completion Project Stage 1b GCB 3360 City of Kent SR 516 and 4th Ave S Roundabout 8/7/2019 Work Completion GCB 2662 City of Kent South 212th Street/WAY Overlay 07/06/2017 Work Completion GCB 2581 City of Kirkland 2017 Street Overlay (NE 70th/72nd Pl) 06/06/2017 Work Completion GCB 3548 City of Kirkland 116th Ave NE Southbound Right Turn Lane to NE 124th Street 07/21/2021 Work Completion GCB 1928 City of Lacey Golf Club Road Extension 10/27/2014 Work Completion GCB 2885 City of Lacey I-5/SR 510 Interchange - Reconstruct Interchange 02/02/2018 10/31/2021 GCB 2948 City of Lake Forest Park SR 522 / SR 104 Red Light Camera 03/09/2018 Work Completion GCB 2263 City of Lakewood I-5 / Bridgeport way signal improvement 09/22/2015 Work Completion GCB 3251 City of Lakewood Olympic Region Traffic Management Center Communications Services Interlocal pending GCB 3211 City of Liberty Lake I-90 Barker to Harvard 01/22/2020 06/30/2023 GCB 3287 City of Lynnwood SR 524 Widening/Improvement Project 09/15/2019 Work Completion GMB 1090 City of Lynnwood General Operations and Maintenance Agreement - City of Lynnwood pending GCB 3488 City of Mabton Washington Street Overlay pending 12/31/2022 GCB 2996 City of Maple Valley SR 516 at 218th Ave SE Intersection Improvement 05/24/2018 Work Completion GCB 3137 City of Maple Valley SR 169 Phase I Improvements (240th - Witte) pending GCB 3296 City of Marysville SR 529/1st Bypass pending GCB 3380 City of Marysville Centennial Trail Connector pending GM 1579 City of Marysville SR 5 Trail Lease pending GMB 1147 City of Medina 520 Trail - City to Install Fence along two sections of 520 trail. City must maintain fencing. 08/14/2019 Work Completion GCB 3011 City of Mercer Island Mercer Island 2018 Asphalt Overlays 06/20/2018 Work Completion GCB 3382 City of Mercer Island West Mercer Way Trail Crossings 07/20/2020 Work Completion GCB 3070 City of Mount Vernon COLLEGE WAY (SR 538) WIDENING 08/30/2018 Work Completion GMB 1967 City of Mount Vernon Beautification of I-5/Kincaid Interchange retaining wall 03/31/2015 Work Completion GCB 2957 City of Mountlake Terrace Main Street Revitalization Project-236th St SW pending GCB 3118 City of Mountlake Terrace 220th Adaptive Signal Installation pending GMB 1111 City of Mukilteo & Ownership, Operation and Maintenance Agreement for Stormwater Facilities Constructed pending Central Puget Sound Regional Transit as Part of the Mukilteo Multimodal Transportation Center Between City of Mukilteo, Authority WSDOT and Central Puget Sound Regional Transit Authority GCB 2472 City of North Bend Bendigo Blvd and Park St Improvements 10/06/2016 Work Completion GCB 1049 City of Pacific Stewart Rd. / Thornton Ave. Improvements 05/05/2014 Work Completion GCB 3353 City of Poulsbo Johnson Parkway Roundabout 04/17/2020 04/17/2023 GCB 1870 City of Redmond NE 40th Street Improvements 08/27/2014 Work Completion GCB 2441 City of Redmond NE 51st / 148th Ave NE Pavement Preservation 06/30/2016 Work Completion GCB 2733 City of Redmond SR202 - Redmond Safe Routes to School 09/06/2017 Work Completion GCB 2976 City of Redmond NE 40th/51st Ramp Modification 04/24/2018 Work Completion GCB 3215 City of Redmond NE 51st Street Improvements 07/10/2019 Work Completion

Page 3 of 13 GCB 3309 City of Redmond SR 520 Trail Grade Separation at 40th St. 01/13/2020 Work Completion GCB 3535 City of Redmond SR 202 and East Lake Sammamish Parkway Intersection Improvements 07/06/2021 Work Completion GCB 2433 City of Renton I-405, Renton to Bellevue Widening and Express Toll Lanes Project 03/11/2019 Work Completion GCB 3066 City of Renton I 405 Renton to Bellevue Corridor Widening and Express Toll Lane 04/22/2019 Work Completion GCB 3365 City of Renton Rainier Avenue Phase 4 10/23/2019 Work Completion GMB 1040 City of Renton SR 405, N Renton Interchange Maintenance pending GMB 1187 City of Richland SR 240 Village Parkway pending GCB 3025 City of SeaTac 2018 Street Overlay - Military Road S 08/16/2018 Work Completion GCB 3068 City of SeaTac Interlocal Agreement for the Construction of the Gateway Project 11/27/2018 12/31/2021 GCB 3563 City of SeaTac SR 509 Project Extension S. 208th Street Connector Improvement Project pending GCA 5739 City of Amendment No. 25 to GSA 5739- Project Services Agreement (PSA) 09/05/2008 12/31/2021 State Route 99 Alaskan Way Viaduct Replacement Program GCA 6366 City of Seattle Alaskan Way Viaduct and Seawall Replacement Program Bored Tunnel Alternative. 10/24/2009 Work Completion GCB 1217 City of Seattle SR 99 Alaskan Way Viaduct Replacement Program, SR 99 Battery Street Tunnel (BST) 02/01/2018 12/31/2021 Decommissioning Project GCB 1308 City of Seattle Alaskan Way Surface Street Reconstruction - South King Street to Elliott Avenue/Western 04/11/2013 12/31/2021 Avenue Schematic Design and Environmental Documentation GCB 1576 City of Seattle SR 520, I-5 to Medina: Bridge Replacement and HOV Project / Arboretum Waterfront Trail 11/25/2013 Work Completion Funding Agreement GCB 1715 City of Seattle Washington State Department of Transportation and City of Seattle Police Department 09/01/2014 12/31/2022 Master Traffic Control Assistance Agreement GCB 1798 City of Seattle SR 520, I-5 to Medina: Bridge Replacement and HOV Project 03/31/2014 Work Completion GCB 1895 City of Seattle SR 520, I-5 to Medina: Bridge Replacement and HOV Project 09/03/2015 12/31/2025 GCB 2469 City of Seattle SR 520 I-5 to Medina: Bridge Replacement and HOV Project Neighborhood Traffic Calming 11/09/2017 03/31/2022 GCB 2762 City of Seattle Agreement No. GCB 2762 05/01/2017 10/31/2025 Re: Traffic Signal Modifications Adjacent to Seattle Ferry Terminal GCB 2903 City of Seattle SR 99 Roy Street to N 145th St -DOT to install Plastic Traffic Letters within Seattle City 04/15/2018 12/31/2021 limits. GCB 2963 City of Seattle Bicycle Master Plan (BMP) Implementation - Dearborn Bike Track 04/20/2018 Work Completion GCB 3242 City of Seattle NE 70th - 71st Street Bridge Pedestrian/Bicycle Improvements 07/24/2019 Work Completion GCB 3274 City of Seattle Northgate Pedestrian Bridge 3/27/2017 Work Completion GCB 3298 City of Seattle Memorandum of Agreement Between City of Seattle and 12/17/2019 06/30/2024 GCB 3368 City of Seattle Rainier Avenue Foot Path Paving 4/6/2020 Work Completion GCB 3377 City of Seattle MLK Connector Trail 6/15/2020 Work Completion GCB 3435 City of Seattle pending GCB 3461 City of Seattle Melrose pending GCB 3480 City of Seattle Madison BRT 3/26/2020 Work Completion GCB 3530 City of Seattle 6th & James Signal Timing 2/18/2020 Work Completion

Page 4 of 13 GCB 3549 City of Seattle 125th St Transit Stop 3/22/2021 Work Completion GM 1238 City of Seattle SR 90 Crossings Maintenance pending GMB 1094 City of Seattle SR 520, City of Seattle Maintenance Agreement 05/17/2019 Work Completion UTB 1408 City of Seattle SR 520/Portage Bay Bridge Utility Agreement for Conceptual Design of the watermain 05/03/2021 5/3/2026 work in the Roanoke Lid vicinity GCB 3136 City of Shoreline Westminster Way North Improvements pending GCB 3005 City of Spokane Fiber Cable Strands Sharing 03/01/2017 02/28/2022 GCB 3086 City of Spokane US395 North Spokane Corridor - Rowan Construction 02/06/2020 12/30/2021 GCB 3112 City of Spokane replacement of the SR 290 East Trent Bridge, Spokane WA 06/14/2018 06/21/2023 GCB 1358 City of Spokane Valley Regional Decant Facility 02/14/2013 06/30/2043 GCB 2995 City of Spokane Valley Barker interchange north ramp terminal with intersection improvements 01/17/2019 Work Completion GCB 3182 City of Spokane Valley SR290 Barker Rd BNSF Grade Separation at Trent Avenue Right of Way Acquisition and 09/19/2019 12/31/2023 Transfer GCB 3305 City of Spokane Valley Barker Road/BNSF Grade Separation (at Trent Avenue - SR 290) 07/13/2020 12/31/2024 GCB 2457 City of Spokane, Interlocal Agreement regarding the creation, operations, and management of the 11/23/2016 Work Completion Spokane County Spokane Regional Transportation Management Center Spokane Transit Authority, City of Spokane Valley, Spokane Regional Transportation Council GMB 1047 City of Stanwood Stanwood Entrance Monument Sign 05/14/2014 Work Completion GCB 3175 City of Sumner SR 410 / Traffic Ave Interchange Improvements 04/30/2019 05/23/2022 GCB 2889 City of Tacoma I-5 Portland Avenue to Port of Tacoma Road - Southbound HOV 01/08/2019 09/30/2022 GCB 3115 City of Tacoma North segment of SR 167 Completion Project 04/15/2019 12/31/2026 GCB 3117 City of Tacoma I-5/S 56th ST Interchange - ADA Compliance pending GCB 3206 City of Tacoma Homeless Encampments Safety and Public Health on WSDOT Property 10/10/2019 06/30/2023 GCB 3318 City of Tacoma Taylor Way Rehabilitation pending GMB 1003 City of Tacoma I-5/SR 16 Eastbound Nalley Valley - HOV pending GMB 1015 City of Tacoma “A” Street City Maintenance pending GMB 1024 City of Tacoma, Tacoma Rail Bridge 5-405W Maintenance Work 03/14/2012 Work Completion GCB 1876 City of Tukwila I5, Klickitat Drive - Unstable Slope - Boardwalk Replacement - Emergency Slide Repair 07/29/2014 Work Completion GCB 2453 City of Tukwila Boeing Access Road (BAR) Bridge Deck Rehabilitation 11/16/2016 Work Completion GCB 2663 City of Tukwila 40th - 42nd Avenue South - Phase III 06/29/2017 Work Completion GCB 3352 City of Tukwila Riverton Flapgate Removal 2/1/2018 Work Completion GCB 2373 City of Tumwater Tumwater / I-5 Southbound Ramp Improvements 03/23/2016 Work Completion GCB 3423 City of Vancouver SR 501/I-5 to W 26th Ave Ext Vic Including Couplet - Paving 03/18/2021 12/31/2022 GCB 3544 City of Vancouver Interstate Bridge Replacement Program pending GCB 3408 City of Waitsburg Taggart Road Vicinity Water Line and Taggart Road Extension 09/21/2020 12/31/2021 GCB 2947 City of Wenatchee SR285 Connecting Washington North Wenatchee 01/01/2018 Work Completion

Page 5 of 13 GCB 3438 City of West Richland West Richland Police Station 03/03/2021 12/31/2022 GCB 3465 City of West Richland SR 224/38th Ave Traffic Signal pending 06/30/2022 GCB 2883 City of Woodinville Sammamish Bridge and Road Project 11/14/2017 Work Completion GCB 3529 City of Woodinville SR 202 / NE 145th High Intensity Activated Crosswalk (HAWK) Signal 06/20/2021 Work Completion GCB 3306 Clark County Centralized Signal System pending GCB 3280 Columbia County US 12 Whetstone Creek/ Turner Road MP 372.57 to 372.58 09/14/2020 12/31/2022 GMB 1175 Confederated Tribes of the Chehalis US 12, Anderson Road Safety Improvement pending Reservation GCB 2952 Confederated Tribes of the Umatilla Indian Master Environmental Services Agreement with Confederated Tribes of the Umatilla 01/02/2019 06/30/2028 Reservation Indian Reservation GCB 1361 Cowlitz-Wahkiakum Council of Governments Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 02/02/2018 Work Completion in the Cowlitz-Wahkiakum Council of Governments Metropolitan Planning Area. GCB 3503 Cowlitz-Wahkiakum Council of Governments Cowlitz - Wahkiakum MPO/RTPO 07/01/2021 06/30/2023

GCB 3314 C-TRAN Southbound I-5 Bus on Shoulder 05/07/2020 Work Completion GCB 2912 Department of Corrections Master Agreement Pilot Project Supersedes GCA 5885 01/03/2018 Work Completion GCB 1998 Department of Ecology Testing of water quality Best Management Practices (BMP) at the Ship Canal Research 09/14/2015 Work Completion Facility GCB 3122 Department of Ecology Mutual Agreement Collocation Facility between Department of Ecology and WSDOT. 07/01/2021 06/30/2041 GCB 3292 Department of Ecology Laboratory services 11/15/2019 10/31/2022 GCB 3317 Department of Ecology DOE Litter Crew Reimbursement pending GCB 3321 Department of Ecology ON-CALL ENVIRONMENTAL SERVICES 07/01/2020 06/30/2024 GCB 3389 Department of Ecology Restoring Graveyard Spit to Prevent Coastal Erosion in Willipa Bay (WA) 07/01/2020 12/31/2021 GCB 3376 Department of Ecology Dayton Ave Bldg. Work for ECY. 05/01/2020 Work Completion GCB 2986 Department of Enterprise Services New Lease space for Tacoma Project Engineer (PE) Office 03/26/2017 12/31/2021 GCB 3113 Department of Enterprise Services Energy Efficiency Upgrades for Vancouver and Tumwater Buildings 07/15/2014 04/30/2025 GCB 3142 Department of Enterprise Services Davenport Office HVAC Upgrade 08/22/2018 12/31/2022 GCB 3426 Department of Enterprise Services 2901 3rd Ave Seattle DES: K6732 Project: 20-10-223 10/08/2020 10/31/2021 GCB 3475 Department of Fish & Wildlife Master Agreement - See Tasks 07/01/2021 06/30/2025 GCB 3219 Department of Fish & Wildlife Fish Passage at Tidal Crossings 07/01/2019 12/31/2021 GCB 3522 Department of Fish & Wildlife Fish Passage Assessment, Inventory and Project Support 07/01/2021 06/30/2023 GCB 3159 Department of Health Complete Streets - increase physical activities by friendly routes to everyday destinations 07/15/2019 09/29/2023 thru revision of ordinances in WA state. GCA 6474 Department of Natural Resources Fire Suppression Resources Availability Agreement 06/25/2010 06/30/2025 GCA 6654 Department of Natural Resources SR 520, I-5 to Medina: Bridge Replacement and HOV Project 10/09/2013 12/31/2023 GCB 3144 Department of Natural Resources WSDOT to provide a public information officer 05/29/2019 12/31/2022 GCB 3127 Department of Ecology Interagency Agreement ECY and WSDOT 03/16/2020 Work Completion GCB 3558 Department of Enterprise Services 2901 3rd Ave Seattle- WSF Prj 21-05-198 05/26/2021 06/30/2022

Page 6 of 13 GCB 3407 Department of Commerce Capital Agreement with Washington State Ferries through Energy Efficiency and Solar 06/05/2019 10/31/2023 Grants Program Energy Division For Washington State Ferries Energy Services GCB 2506 Eastern Washington University SR 395, North Spokane Corridor 10/01/2016 12/31/2023 GCB 3460 Eastern Washington University ON-CALL CULTURAL RESOURCES SERVICES 07/01/2021 06/30/2025 GCB 3203 Federal Aviation Administration SR 531: 43rd Avenue NE to 67th Ave NE Widening Project 08/20/2019 Work Completion GCB 3179 Idaho University of Regent Site Calibrated Bedload Equation Implementation in Python 06/01/2019 08/31/2021 GCB 2488 Island County SR 20 Design 03/26/2019 09/13/2023 GCB 3028 Island County Honeymoon Bay Road - SR 525 Channelization Project 07/20/2018 Work Completion GCB 3079 Island County Terry's Corner Park and Ride Expansion pending GCB 3190 Island County Clinton Park and Ride and SR 525 Sidewalk Improvements- Park and Ride to Ferry 01/30/2020 Work Completion GCB 3256 Island County Traffic Control Services at Clinton Ferry Terminal 09/09/2019 09/30/2024 GCB 3299 Island County SR 20, Race to Welcher 02/24/2020 Work Completion GCB 3512 Island County Island RTPO 07/01/2021 06/30/2023 GCB 3539 Island County Clinton Park and Ride and SR 525 Sidewalk Improvements- Park and Ride to Ferry pending GCB 2668 Jamestown S’Kallam Tribe Chicken Coop/Zaccardo Realignment 06/29/2017 Work Completion GCB 1837 Jefferson County Public Works SR19 / West Valley Rd Safe Routes to School 03/16/2015 Work Completion GCB 2021 Jefferson County Public Works Olympic Discovery Trail 01/30/2017 Work Completion GCB 3520 Jefferson Transit Authority Peninsula Regional Transportation Planning Organization 07/01/2021 06/30/2023 GCB 1323 King County Barton Street Pump Station Upgrade Project 10/26/2012 06/30/2032 GCB 2527 King County Lake to Sound Trail Funding Agreement Segment C 11/27/2018 06/30/2023 GCB 2742 King County Sammamish Trail Riverbank Repair 06/05/2018 Work Completion GCB 3300 King County Cambridge 11/07/2019 11/07/2024 GCB 3301 King County Rattlesnake West 02/01/2020 01/31/2025 GCB 3470 King County Lake to Sound C Trail 4/21/2021 Work Completion GCB 3495 King County S 188th St & Orillia Rd S Rechannelization 4/21/2021 Work Completion GCB 3526 King County Flood Risk Reduction 5/11/2020 Work Completion GM0 1507 King County Supplement No. 1 to GM 1507 Interlocal Agreement - Trail Maintenance pending GCB 3325 King County Metro Metro Eastlake Bus Layover pending GCB 3030 Kitsap County SR 104 Realignment 08/31/2018 Work Completion GCB 3286 Kitsap County Washington Boulevard Improvements 11/01/2019 11/01/2022 GMB 1029 Kitsap County SR 104, Kingston Sidewalk Maintenance 04/05/2013 Work Completion GCB 3434 Kitsap Transit Memorandum of Understanding Re: Kitsap Transit Service Improvements at the 02/12/2021 02/12/2022 Southworth Ferry Terminal GCB 3489 Kitsap Transit Operation and Maintenance For Kitsap Transit Passenger-Only Ferry Service at pending Southworth Ferry Terminal GCB 3490 Kitsap Transit Kitsap Transit Bus Service Access at Southworth Ferry Terminal pending GCB 3542 Langley Creative District Creative District requests WSDOT’s assistance in manufacturing and installing the signs 07/30/2021 12/31/2021 necessary for notification purposes.

Page 7 of 13 GCB 1365 Lewis Clark Valley MPO Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 01/03/2017 Work Completion in the Lewis Clark Valley MPO Metropolitan Planning Area. GCB 3511 Lewis-Clark Valley MPO Lewis-Clark Valley MPO (LCVMPO) 07/01/2021 06/30/2023 GCB 2384 Lower Elwha / Klallam Tribe US101 / Dry Creek Road Intersection Improvements 04/07/2016 Work Completion GCB 2664 Lower Elwha Klallam Tribe Lower Elwha Klallam Tribe Health Clinic Access Improvements 06/28/2017 Work Completion GCB 3177 Mason Transit Authority Pear Orchard Park and Ride Development 04/16/2019 04/19/2022 GCB 3293 Mason Transit Authority Log Yard Road Roundabout Intersection 11/19/2019 11/19/2022 GCB 3017 Massachusetts Department of Roadside Safety Research for MASH Implementation pending Transportation GCB 3496 Metropolitan Park District of Tacoma Memorandum of Understanding For Point Defiance Restroom Facility pending 10/31/2024 GCB 3427 Ministry of Transportation - Province of Participation in TPF-5(343), Roadside Safety for MASH Implementation 02/16/2021 12/31/2023 Ontario GCB 2588 Minnesota Department of Transportation Impact Performance Evaluation of Modified Minnesota Swing-Away Mailbox Support to 10/18/2017 10/31/2021 MASH GCB 3010 Minnesota Department of Transportation Partnership between Minnesota DOT and Washington DOT Pooled Fund Participation - 07/23/2018 06/30/2023 NW Passage - TPF-5(376) GCA 6737 Montana State University Master agreement 06/09/2011 06/30/2022 GCB 3390 Montana Technological University New Master Agreement 01/15/2021 06/30/2026 GCA 6722 Muckleshoot Indian Tribe SR 520, I-5 to Medina: Bridge Replacement and HOV Project 12/13/2011 Work Completion GCB 2014 Muckleshoot Indian Tribe Seattle Multimodal Terminal at Colman Dock Project 10/06/2016 12/31/2025 GCB 1347 Muckleshoot Indian Tribe SR 520, I-5 to Medina: Bridge Replacement and HOV Project / Foster Island Cultural Event 04/24/2014 Work Completion Agreement GCB 3187 Multi organization agreement. (Emergency Proclamation) 08/19/2019 Work Completion A list of participating agencies is maintained Public Works Emergency Response Assistance Mutual Aid Agreement at Office of Emergency Management (OEM).

GCB 1162 Multnomah County Drainage District No. 1 Columbia River Crossing Project 03/21/2013 12/31/2021 GCB 3056 National Oceanic and Atmospheric SR 520, I-5 to Medina: Montlake I/C and Bridge Replacement Project 12/24/2018 Work Completion Administration GCB 2333 Nisqually Tribe SR510 Improvements and Frontage Rd. 01/04/2016 Work Completion GCB 3517 Northeast Washington RTPO Northeast Washington RTPO (NEW RTPO) 07/01/2021 06/30/2023 GCB 3129 Northshore School District SR 524/Northshore School District Roundabout Installation pending GCA 6904 Office of Administrative Hearings TOLL VIOLATION ADJUDICATION 08/30/2011 06/30/2023 GCB 3524 Office of Secretary of State Interagency Library Agreement 07/01/2021 06/30/2023 GCB 3275 Office of Superintendent of Public Safe Routes to School Program 07/01/2019 06/30/2023 Instruction GCB 3320 Okanogan County Multiple 02/12/2008 12/31/2039 GCB 1391 Okanogan County Public Works Armory Junction Road Improvements 02/15/2013 Work Completion

Page 8 of 13 GCB 3518 Okanogan County Public Works Okanogan Regional Transportation Planning Organization (OCOG) 07/01/2021 06/30/2023 GCB 2125 Oregon Department Of Transportation Columbia River Bridge EB - Truss Deck Replacement Bridge 82/280S 07/01/2015 Work Completion GCB 2272 Oregon Department of Transportation I-5/NB Interstate Bridge - South Tower Trunnion Replacement 10/15/2015 10/15/2022 GCB 2470 Oregon Department of Transportation Oregon’s participation in TPF-5(343) 06/30/2016 12/31/2021 GCB 2693 Oregon Department of Transportation US197 Columbia River (The Dalles) Bridge Deck and Rail Replacement 08/30/2018 08/30/2025 GCB 2703 Oregon Department of Transportation SR 433/Lewis and Clark Bridge - Replace Navigation Lights 07/27/2018 07/27/2025 GCB 3072 Oregon Department of Transportation Oregon’s Participation in TPF-5(241) 09/05/2018 03/31/2023 GCB 3109 Oregon Department of Transportation US101: Columbia River (Astoria-Megler) Deck Truss Painter 05/16/2019 05/16/2026 GCB 3342 Oregon Department of Transportation Interstate Bridge Replacement Program 04/02/2020 04/02/2030 GCB 3543 Oregon Department of Transportation Columbia River I-5 Bridge Electrical Equipment Upgrade pending GCB 3559 Oregon Department of Transportation SR 433 Lewis and Clark Bridge Expansion Joint Replacement pending GCB 3519 Palouse RTPO Palouse RTPO 07/01/2021 06/30/2023 GMB 0136 Parks and Recreation Commission Spokane River shoreline landscaping 09/04/2013 Work Completion GCB 3255 Pierce County Olympic Region Traffic Management Center Communications Services Interlocal 01/02/2020 Work Completion GCB 3022 Port of Kingston Kingston Restroom Improvements and Clock Removal pending GCB 2730 Port of Ridgefield Port of Ridgefield Overpass PIN 725910A 10/01/2017 11/20/2021 GCB 2454 Port of Seattle SR 518 - Des Moines Memorial Drive (DMMD) on-Ramp Restoration 08/11/2016 Work Completion GCB 3121 Port of Seattle License For Temporary Use ( WSF No. GCB 3121 ) 01/01/2019 12/31/2023 GCB 3331 Port of Seattle Interlocal Agreement Between WSDOT and Port of Seattle 05/13/2020 12/31/2029 GCB 3541 Port of Vancouver USA Interstate Bridge Replacement Program 01/01/2021 12/31/2025 GM0 1533 Port of Walla Walla SR 124 Interchange - Burbank Vicinity 04/09/2013 04/09/2025 GCB 2258 Portland State University Master Agreement 12/17/2015 06/30/2024 GCB 3504 Puget Sound Regional Council Puget Sound Regional Council (PSRC) TMA, MPO and RTPO 07/01/2021 06/30/2023 GCB 1362 Puget Sound Regional Council Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 05/31/2016 Work Completion in the Puget Sound Regional Council Metropolitan Planning Area. GCB 3521 Quad-County RTPO & Kittitas County RTPO for Lincoln, Grant, Adams, and Kittitas Counties 07/01/2021 06/30/2023 GCA 6658 Quinault Indian Nation SR 520 Pontoon Construction Project 12/08/2010 Work Completion GCB 3198 Recreation & Conservation Office Cultural Resources Services for WSRCO 07/01/2019 Work Completion GCB 3212 Recreation & Conservation Office Cultural Resources Support 07/01/2019 06/30/2023 GCB 2311 Saint Martin’s University Master Agreement 08/14/2017 06/30/2023 GCB 3267 Samish Indian Nation SR 20/Campbell Lake Road 03/13/2020 Work Completion GCB 2530 San Juan County Lease For Orcas Island Park and Ride Lot Pending GCB 3417 Seattle City Light Seattle City Light’s Participation in TPF-5(386), Gravel-Bed River Tool for Improved 11/01/2020 12/31/2023 Resiliency of Engineering Design GCB 3478 Seattle City Light Skagit River Hydroelectric Project Wildlife Research 05/28/2021 12/31/2023 UTB 1358 Seattle Public Utilities SR 520: I-5/Mercer St. to SR 520/Portage Bay; I-5 Interchange 12/14/2020 12/31/2025 Improvements

Page 9 of 13 UTB 1416 Seattle Public Utilities SR 520: I-5/Mercer St. to SR 520/Portage Bay; I-5 Interchange 12/14/2020 12/31/2025 Improvements GCB 1275 Secretary of State’s Office Combined Fund Drive 04/11/2018 06/30/2022 GCB 3506 Skagit Council of Governments Skagit Metropolitan Planning Organization and Skagit RTPO 07/01/2021 06/30/2023 GCB 1363 Skagit Council of Governments Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 06/29/2017 Work Completion in the Skagit Council of Governments Metropolitan Planning Area. GMB 1132 Skagit County Skagit County Large Woody Debris removal from County bridges by WSDOT 12/18/2018 12/18/2023 GMB 1114 Skagit County Parks SR 20 Fruitdale Road Intersection 11/09/2017 Work Completion GCB 2395 Skokomish Tribe of Indians US101 Crosswalk and Turn Lane 05/16/2016 Work Completion GCB 3189 Snohomish County I-5 Signal Systems Phase II Snohomish County 05/05/2020 Work Completion GCB 3263 Snohomish County SR 99 and 148th Paver 08/26/2019 Work Completion GMB 1023 Snohomish County I 5, SR 532 NB IC Ramps (Stanwood Park and Ride) pending GCB 1935 Southwest Washington Regional Memorandum of Agreement relating to mutual responsibilities in carrying out the 11/06/2014 12/04/2024 Transportation Council Metropolitan Transportation Planning Process in the Southwest Washington Regional Transportation Council Metropolitan Planning Area GCB 3482 Southwest Washington Regional Interstate Bridge Replacement Program 01/01/2021 12/31/2025 Transportation Council GCB 3505 Southwest Washington Regional Southwest Washington Regional Transportation Council (RTC) TMA, MPO, and RTPO 07/01/2021 06/30/2023 Transportation Council GCB 3125 Spokane County I-90 Kramer Parkway 03/24/2021 12/31/2022 GCB 3328 Spokane County FHWA FY 2018 Build Grant No. 9 08/20/2020 09/30/2025 GCB 3340 Spokane County US 2 License Plate Reader Cameras 11/04/2020 12/30/2021 GMB 1063 Spokane International Airport SR 2 Airport Interchange snow removal 02/26/2015 Work Completion GCB 1864 Spokane Public Facilities District Spokane Convention Center 08/01/2014 Work Completion GCB 2008 Spokane Regional Transportation Council Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 01/15/2013 Work Completion in the Spokane Metropolitan Planning Area. GCB 3507 Spokane Regional Transportation Council Spokane Regional Transportation Council (SRTC), TMA, MPO, and RTPO 07/01/2021 06/30/2023

GCB 3134 Spokane Transit Authority I 90 Medical Lake I/C to Geiger I/C Reconstruction 03/04/2019 12/30/2021 GMB 1143 Spokane Tribe of Indians West Plans Entry Roundabout Art and Landscape project pending GCB 1484 Stillaguamish Tribe of Indians SR 5, 236th St NE/13th Ave N Improvements 06/17/2013 Work Completion GCB 1202 Suquamish Tribe SR 520, I-5 to Medina: Bridge Replacement and HOV Project 06/28/2012 Work Completion GCB 2486 Suquamish Tribe Seattle Multimodal Terminal at Colman Dock Project 01/10/2017 Work Completion GCB 2486 Suquamish Tribe Memorandum of Agreement for the Seattle Multimodal Terminal at Colman Dock Project 01/10/2017 12/31/2025 GCB 3313 Texas Tech University System New Master Agreement 02/01/2020 02/28/2025 GCA 4541 Texas Transportation Institute Master Agreement 11/21/2005 12/31/2023 GCB 3555 The City of Portland Interstate Bridge Replacement Program pending

Page 10 of 13 GCB 3339 The Confederated Tribes and Bands of the SR 142 / Klickitat River Bridge - Replace Bridge (Bridge #142/009) pending Yakama Nation GCB 3171 The Evergreen State College Environmental Drone UAS Internship 06/01/2021 06/30/2022 GCB 2009 The Suquamish Indian Tribe Vashon Trestle Seismic Bracing Project 04/01/2015 Work Completion GCB 1734 The Swinomish Indian Tribal Community Mukilteo Multimodal Project 01/01/2013 Work Completion GCB 1735 The Tulalip Tribes Mukilteo Multimodal Project 01/01/2013 Work Completion GCB 1367 Thurston Regional Planning Council Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 03/04/2016 Work Completion in the Thurston Regional Planning Council Metropolitan Planning Area. GCB 3508 Thurston Regional Planning Council Thurston Regional Planning Council (TRPC) MPO & RTPO 07/01/2021 06/30/2023 GMB 1191 Town of Winthrop Susie Stephens Trail Xing/Signing 09/01/2021 Work Completion GCB 3387 Transportation Commission Washington Road Usage Charge Pilot 08/20/2020 07/31/2025 GCB 3533 Tri-County Metropolitan Transportation Interstate Bridge Replacement Program 01/01/2021 12/31/2025 District of Oregon GCB 3372 University of California New Master Agreement 12/22/2020 07/31/2025 GCB 2665 University of Maryland Master Agreement 02/12/2018 06/30/2024 GCA 4908 University of Washington Archaeological Curation of Artifacts 04/05/2006 04/05/2026 GCB 1461 University of Washington UW Master Agreement 08/07/2013 06/30/2022 GCB 1976 University of Washington UBNA - West Approach Wetland Mitigation 04/30/2015 Work Completion GCB 2911 University of Washington Agreement between University of Washington and the Washington State Department of 07/03/2018 09/30/2021 Transportation for Maintenance Support at UBNA GCB 1112 University of Washington SR 520, I-5 to Medina: Bridge Replacement and HOV Project / Union Bay Natural Area 04/29/2014 04/28/2026 Mitigation Agreement GCB 1291 University of Washington SR 520, I-5 to Medina: Bridge Replacement and HOV Project / 3-Party Real Estate 12/23/2013 Work Completion Transaction Agreement GCB 1343 University of Washington SR 520, I-5 to Medina: Bridge Replacement and HOV Project / Overall Property Needs and 12/23/2013 Work Completion Mitigation Agreement GCB 1307 US Army Corps of Engineers Columbia River Crossing (CRC) 11/16/2012 06/30/2022 GCB 3254 US Dept of Agriculture Forest Service South Baldy 08/08/2019 12/31/2048 GCB 3378 US Dept. of Agriculture Wildlife Management & Monitoring Statewide On-Call Agreement 07/01/2020 06/30/2025 GCB 3075 US Fish & Wildlife Services Gravel Bed River Assessment Tool for Improved Resiliency of Engineering Design pending GCB 1548 US Forest Service Snoqualmie Pass East 03/19/2018 12/31/2024 GCB 2815 USDA Forest Service US97 Swawk Creek Campground - Fish Passage Retrofit 12/01/2017 12/31/2022 GCB 3195 USDA Forest Service Interstate 90 Snoqualmie Pass East Project 07/01/2019 06/30/2024 GCB 3194 USGS - U.S Geological Survey Glacier Creek monitoring equipment installation 05/28/2019 03/31/2022 GCB 2962 Utah Department of Transportation Utah’s Participation in TPF-5(343) 06/13/2018 12/31/2021 GCB 3213 Utilities and Transportation Commission AGREEMENT FOR ASSIGNMENT OF GRADE CROSSING INSPECTION DUTIES IN RCW 08/26/2019 06/30/2029 GCB 1973 Virginia Tech Transportation Institute Illumination Safety Research Using SHRP2 Naturalistic Safety Data (NSD) Collected in 01/01/2015 12/31/2021 Washington State

Page 11 of 13 GCB 3471 WA ST Parks and Recreation Commission I-5/E Fork Lewis River Bridge NB - Replace Bridge pending GCB 1371 Walla Walla Valley MPO Memorandum of Agreement relating to mutual responsibilities in carrying out the 6/15/2016 6/9/2026 Metropolitan Transportation Planning Process in the Walla Walla Valley MPO Metropolitan Planning Area. GCB 1373 Walla Walla Valley MPO Walla Walla Valley MPO Interlocal Agreement 03/25/2016 Work Completion GCB 3498 Walla Walla Valley MPO Walla Walla Valley MPO and sub-RTPO 07/01/2021 06/30/2023 GCB 3491 Washington State Military Department WebEOC use and access 06/08/2020 Work Completion GMB 1203 Washington State Parks Paint Stripe Agreement 06/02/2021 12/31/2022 GCB 3273 Washington State Parks Department On-call Tree Services Agreement 09/17/2019 06/30/2023 GCA 5080 Washington State Patrol Master Agreement for Traffic Control Assistance 02/22/2007 Perpetual GCB 1800 Washington State Patrol Dog Mountain (WSP) 01/14/2014 01/31/2024 GCB 2018 Washington State Patrol I-405 Express Toll Lane Enforcement Activities 08/05/2015 06/30/2023 GCB 2767 Washington State Patrol Express Toll Lane Enforcement SR 167 10/01/2017 06/30/2023 GCB 3259 Washington State Patrol Traffic Control Services at Washington State Ferries Terminals 10/11/2019 09/30/2024 OPB 1014 Washington State Patrol Kalama Communication Site (WSP Utilities) 07/01/2013 06/30/2028 OPB 1020 Washington State Patrol Roosevelt Communication Site (WSP) 07/01/2013 06/30/2023 OPB 1028 Washington State Patrol Jump Off Joe Butte (WSP) 07/01/2013 06/30/2023 OPB 1029 Washington State Patrol Baw Faw Communication Site (WSP) 07/01/2013 06/30/2023 OPB 1034 Washington State Patrol Maynard/Gardiner (WSP) 07/01/2013 06/30/2023 OPB 1039 Washington State Patrol Lewiston Ridge (WSP) 07/01/2013 06/30/2023 OPB 1041 Washington State Patrol Devils Mtn 12/19/2013 06/30/2026 GCB 1462 Washington State University WSU Master Agreement 08/23/2013 06/30/2022 OPB 1074 Washington State University Kamiak Butte 10/01/2017 12/31/2024 GCB 2967 Washington State University & University of TRAC Operating Agreement 06/28/2018 06/30/2022 Washington GCB 2987 Washington Tree Fruit Research Commission Apple Maggot Quarantine Signs 06/07/2018 06/30/2023 & Washington State Department of Agriculture GCB 3509 Whatcom Council of Governments Whatcom Council of Governments (WCOG) MPO, RTPO, and IMTC 07/01/2021 06/30/2023 GCB 1880 Whatcom County I-5 Slater Road Intersection Enhancements 08/06/2014 Work Completion GCB 2250 Whatcom County Exit 270 Birch Bay- Lynden Rd Crossroad Paving 12/17/2015 Work Completion GCB 2391 Whatcom County Exit 270 Birch Bay- Lynden Rd Crossroad Paving 12/17/2015 Work Completion GCB 3531 WS Ecology, Dept of On Call Services for Southwest Region by DOE/Washington Conservation Corps crews pending 06/30/2025 Washington Conservation Corps GCB 3183 WSCC Public Facilities District WSCC Expansion Permit 4 - Cranes 04/25/2019 Work Completion GCB 3532 WSCC Public Facilities District WSCC Expansion Permit 6 – Bridge Pole SIP 4/25/2019 Work Completion GCB 3536 WSCC Public Facilities District WSCC Expansion Permit 7 - Express Lane Lift Station 4/25/2019 Work Completion GCB 3283 WSCC Public Facilities Group WSCC Expansion Permit 5 - Bridge Pole UMP 4/25/2019 Work Completion

Page 12 of 13 GCB 3415 Yakama Nation Nason Creek Restoration Project Concept 2 06/01/2021 Work Completion GCB 2938 Yakama Nation Yakama Nation Master Agreement 07/01/2019 07/30/2039 GCB 1370 Yakima Valley Conference of Governments Mutual responsibilities in carrying out the Metropolitan Transportation Planning Process 1/6/2020 1/5/2025 in the Yakima Valley Conference of Governments Metropolitan Planning Area. GCB 2232 Yakima Valley Conference of Governments 3D modeling/visualization, video production and/or commercial photography services 01/01/2016 12/31/2021

GCB 3454 Yakima Valley Conference of Governments West Powerhouse Road Vicinity Planning Study 03/22/2021 12/31/2022

GCB 3510 Yakima Valley Conference of Governments Yakima Valley Conference of Governments (YVCOG) MPO and RTPO 07/01/2021 06/30/2023

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