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Interlocal Agreements

The Washington State Department of Transportation enters into cooperative agreements with interlocal agencies. RCW 39.34.040 requires that these agreements be recorded with the county auditor or posted on a public web source.

Agreement

Subject

Agency

GCA 6871
(pdf 8.9 mb)

SR 520, Pontoon Construction

Confederate Tribes of Chehalis Reservation

GCA 6870
(pdf 232 kb)

Government Agreement for Aid Master Agreement

Columbia County Public Works

GCA 6766
(pdf 795 kb)

Extended Discharge Time and Revolution Count for Cast-in-Place Concrete

OUS Oregon State University

GCA 6699
(pdf 1.1 mb)
Amendment 1
(pdf 390 kb)
Amendment 2
(pdf 611 kb)

2011-2013 State Capital Construction Grant Agreement Regional Mobility

City of Seattle, Department of Transportation

GCA 6684
(pdf 652 kb)

520-Bridge Replac. & HOV - I-5 to Medina

City of Seattle

GCA 6667
(pdf 333 kb)
Amendment 3
(pdf 104 kb)

Columbia River Crossing

Metro

GCA 6666
Amendment 2
(pdf 132 kb)

Columbia River Crossing

Southwest Washington Regional Transportation Council

GCA 6662
Amendment 1
(pdf 432 kb)

SR 520 I-5 to Medina Project - Montlake Triangle Project

Capital Projects Office

GCA 6657
(pdf 652 kb)

US 97 North of Brewster Passing Lane: Cultural Resources Inventory

Colville Confederated Tribe

GCA 6649
(pdf 558 kb)
Amendment 1
(pdf 33 kb)
Amendment 2
(pdf 38 kb)
Amendment 3
(pdf 65 kb)

Columbia River Crossing Project

City of Portland

GCA 6637
(pdf 582 kb)
Task Order TA-1
(pdf 175 kb)
Task Order TB-1
(pdf 13.5 mb)

SR 520 Pontoon Construction Project

Quinault Indian Nation

GCA 6624
(pdf 439 kb)

SR 99 Alaskan Way Viaduct and Seawall Replacement Program, Bored Tunnel Alternative Design-Build Project

City of Seattle

GCA 6622
(pdf 106 kb)

Facilitation

South Puget Sound Community College (SPSCC)

GCA 6618
Amendment 4
(pdf 108 kb)
Amendment 5
(pdf 546 kb)

Columbia River Crossing Project

C-Tran

GCA 6540
(pdf 292 kb)

Repair the Cedar Falls Trestle

WA State Parks and Recreation Commission

GCA 6524
(pdf 852 kb)
Amendment 2
(pdf 250 kb)
Amendment 3
(pdf 230 kb)
Amendment 4
(pdf 46 kb)
Amendment 5
(pdf 100 kb)
Amendment 6
(pdf 137 kb)
Amendment 7
(pdf 2.2 mb)

Columbia River Crossing

Tri-County Metropolitan Transportation District (TRIMET)

GCA 6517
(pdf 168 kb)

IMTC “bridge funding” until reauthorization

Confederate Tribes of Chehalis Reservation

GCA 6485
(pdf 138 kb)

SR 522, US 2 Interchange, Flyover Ramp

City of Monroe

GCA 6482
Amendment 1
(pdf 62 kb)

US 2/Euclid Ave. to Francis Ave

City of Spokane

GCA 6451
(pdf 409 kb)

US 2/Euclid Ave. to Francis Ave. - HMA Paving

Spokane Transit Authority

GCA 6448
(pdf 131 kb)

I-5, Portland Avenue to Port of Tacoma Road - NB HOV Stage 1

City of Tacoma

GCA 6444
(pdf 269 kb)

SR 99 Alaskan Way Viaduct - Bored Tunnel Alternative

Port of Seattle

GCA 6438
(pdf 135 kb)

SR 16/6th Avenue Westbound Off Ramp - Noise Wall Repair

City of Tacoma

GCA 6428
(pdf 292 kb)
Amendment 1
(pdf 49 kb)

Alaska Way Viaduct Utilities and Survey Mapping

WA Dept. of Natural Resources (DNR)

GCA 6406
(pdf 1.1 mb)

SR 529, Ebey Slough Bridge Replacement

City of Marysville

GCA 6402
(pdf 377 kb)

SR 823 Realignment and Railroad Avenue Improvements

City of Selah

GCA 6387
(pdf 2.31 mb)

Oregon - US 26 @ Glencoe; US26 @ Shute; Sunrise Corridor & I84 @ Troutdale

State of Oregon (ODOT)

GCA 6378
(pdf 2.14 mb)
Amendment 1
(pdf 151 kb)

US 2/Euclid Ave to Francis Ave

Spokane Transit Authority

GCA 6376
Amendment 2
(pdf 236 kb)

Lake Sammamish-Cedar River Regional Trail Corridor - City Project

City of Issaquah

GCA 6374
(pdf 377 kb)

I-5, Mountlake Terrace Freeway Station

Community Transit

GCA 6373
(pdf 420 kb)

I-405 Corridor Program Improvements, Archaeological site monitoring

Snoqualmie Tribe

GCA 6362
(pdf 155 kb)

SR 161, 24th St. E to Milton Way

Pierce County Sheriff

GCA 6360
(pdf 135 kb)

SR 97 - Beebe Bridge Emergency Repair

LINK Transit

GCA 6356
(pdf 190 kb)

Litter Pickup

WA State Dept of Ecology (ECY)

GCA 6347
(pdf 560 kb)

SR 270 Pullman to the Idaho State Line; Provide plant establishment

Palouse Conservation District

GCA 6312
(pdf 84 kb)

I-90, Taneum Crk - Bruton Diversion Project, chapter 39.34 RCW

Kittitas Co. Conservation District

GCA 6267
(pdf 628 kb)

Main St & Valley Mall Blvd

City of Union Gap

GCA 6266
(pdf 445 kb)

I-90 Westbound Br. Joint Replacements

City of Mercer Island

GCA 6260
(pdf 170 kb)

US 395, Spokane County Line to Loon Lake

Spokane County

GCA 6237
(pdf 158 kb)

I-5 / SR 501 Ridgefield Interchange

Port of Ridgefield

GCA 6105
(pdf 345 kb)

SR 31. North Pend Oreille Safety Project

Town of Metaline Falls

GCA 6103
(pdf 349 kb)

SR 31. North Pend Oreille Safety Project

Town of lone

GCA 6086
(pdf 135 kb)

I-90 and SR 520 Lake Washington Congestion Mgt Sign Bridges

City of Mercer Island

GCA 6082
(pdf 196 kb)

County to do Chip Seal work for State

Snohomish County

GCA 6074
(pdf 155 kb)

SR 531 - I-5/172nd St NE (SR 531) Modifications

City of Marysville

GCA 6055
(pdf 106 kb)

SR 99 Alaskan Way Viaduct & Seawall Replacement Program, Yesler Way Vicinity Stabilization Project

Burke Museum of Natural History and Culture

GCA 6022
(pdf 507 kb)

SR 16, Snake Lake Mitigation

Metropolitan Park District of Tacoma

GCA 5999
(pdf 238 kb)

I-90 / Spokane Port of Entry Weigh Station Relocation

WA State Patrol (WSP)

GCA 5986
(pdf 1.8 mb)

SR 520 east to 192nd Ave. N.E., plant establishment

City of Redmond

GCA 5980
(pdf 191 kb)

SR285/George Sellar Bridge - Additional EB Lane

LINK Transit

GCA 5942
(pdf 593 kb)

Lewis and Clark Bridge Substructure Painter

State of Oregon (ODOT)

GCA 5939
(pdf 371 kb)

South Nanamkin Creek and SR 21

Confederated Tribes of the Colville Indian Reservation

GCA 5928
(pdf 606 kb)

SR104 - Hood Canal Bridge Closure, Retrofit & Replacement - East Half

Kitsap Transit

GCA 5920
(pdf 63 kb)

Peer Team Study

Puget Sound Regional Council

GCA 5919
(pdf 60 kb)

Peer Team Study

Atlanta Regional Commission

GCA 5885
(pdf 488 kb)

Roadside litter and debris removal

DOC - WSDOT - Litter pickup

GCA 5884
(pdf 135 kb)

Centralia Flood Damage Reduction Project Chehalis River, WA

Office of Financial Management (OFM)

GCA 5877
(pdf 812 kb)

SR 99/SR 518 Riverton Heights Seismic Retrofit

Port of Seattle

GCA 5876
(pdf 522 kb)

SR 518 and SR 99 Interchange and the North Air Expressway at South 160th Street

Port of Seattle

GCA 5870
(pdf 181 kb)

Chuckanut Park and Ride

Skagit Transit

GCA 5869
(pdf 216 kb)

SR 104 Hood Canal Bridge

Port Gamble S’Klallam Tribe

GCA 5860
(pdf 131 kb)

SR 509, Span 8 Replacement - Police Assistance

City of Fife

GCA 5859
(pdf 133 kb)

SR 509, Span 8 Replacement - Police Assistance

City of Tacoma

GCA 5832
(pdf 340 kb)

I-405 Corridor Program Improvements, Archaeological site monitoring

Snoqualmie Tribe

GCA 5831
(pdf 390 kb)
Amendment 1
(pdf 60 kb)

Columbia River Crossing Project

Confederated Tribes of the Umatilla Indian Reservation

GCA 5828
(pdf 258 kb)
Amendment 1
(pdf 316 kb)

I-405 I-5 to SR 169 Stage 2 Widening and SR 515 Interchange

City of Renton

GCA 5823
(pdf 1.46 mb)

SR 16/SR 5, Westbound Nalley Valley Construction

City of Tacoma

GCA 5820
(pdf 678 kb)

SR 99 Alaskan Way Viaduct & Seawall Replacement

King County DOT

GCA 5817
(pdf 972 kb)

SR 16, Canterwood Dr. NW

City of Gig Harbor

GCA 5765
(pdf 653 kb)
Amendment 1
(pdf 288 kb)

SR 532 Corridor Improvements Wetland Mitigation

Stillaguamish Tribe

GCA 5750
(pdf 297 kb)

SR 9, Corridor Study

City of Snohomish

GCA 5737
(pdf 930 kb)

Stevens Pass Pedestrian Overcrossing

USDA Forest Svc Mt Baker-Snoqualmie Natl Forest

GCA 5736
Task Order AD
(pdf 215 kb)
Amendment 2
(pdf 101kb)

Columbia River Crossing Project

National Parks Service

GCA 5720
(pdf 33 kb)

Installation of a grade crossing protective device

WA Utilities & Transportation Commission (WUTC)

GCA 5715
(pdf 128 kb)

SR 528/I-5 to SR 529 Vicinity Paving

City of Marysville

GCA 5714
(pdf 390 kb)

Columbia River I-5 Northbound and Southbound Lift Span Inspection and Evaluation

State of Oregon (ODOT)

GCA 5709
(pdf 857 kb)

Lake Sammamish State Park

WA State Parks & Recreation Commission (PARKS)

GCA 5705
(pdf 141 kb)

ODOT Astoria Megler Bridge South End

Oregon DOT

GCA 5685
(pdf 248 kb)

SR 522 / Multi-modal Corridor Projects

City of Bothell

GCA 5672
(pdf 765 kb)

U.S. 2 stockpile site, avalanche control site, and Grace Lakes weather station

USDA Forest Svc Mt Baker-Snoqualmie Natl Forest

GCA 5656
(pdf 118 kb)

SR 161/SR 167 Eastbound Ramp - Safety

City of Puyallup

GCA 5650
(pdf 3.87 mb)

Specialized Mountain Weather & Avalanche Forecasts

USDA Forest Svc Mt Baker-Snoqualmie Natl Forest

GCA 5647
(pdf 569 kb)
Amendment 1
(pdf 33 kb)
Amendment 2
(pdf 392 kb)

I-5 Columbia River Crossing

Regional Transportation Council

GCA 5620
(pdf 195 kb)
Supplement 1
(pdf 80 kb)
Supplement 2
(pdf 120 kb)
Supplement 3
(pdf 55 kb)

I-90 / Spokane Port of Entry Weigh Station Relocation

WA State Patrol (WSP)

GCA 5552
(pdf 2.29 mb)
Amendment 1
(pdf 563 kb)

SR 9 Nooksack to Cherry Street Project

Whatcom Conservation District

GCA 5549
(pdf 76 kb)

Pass-through grant - City to Mountains Regional Gap Fund

WA State Parks & Recreation Commission (PARKS)

GCA 5535
(pdf 3.25 mb)

SR104 - Hood Canal Bridge Project West Half Retrofit and East Half Replacement

Kitsap Transit

GCA 5534
(pdf 4.67 mb)
Amendment 1
(pdf 6 kb)

Hood Canal Bridge Closure, Retrofit & Replacement - East Half

Mitigation - Traffic Congestion

GCA 5527
(pdf 1.16 mb)

I-405 Construction Mitigation Assistance Bellevue/Renton Projects

King County Metro I-405

GCA 5487
(pdf 950 kb)

I-405 Construction Mitigation Assistance Kirkland - Phase I

Metro Transit Kirkland

GCA 5485
(pdf 568 kb)

I-5 Spokane Street to I-90, Bridge Repairs

King County Metro - Water Taxi

GCA 5481
(pdf 910 kb)

Water Shuttle during closure of Hood Canal Bridge

Kitsap Transit

GCA 5427
(pdf 112 kb)
Amendment 1
(pdf 473 kb)
Amendment 2
(pdf 505 kb)
Amendment 3
(pdf 83 kb)

SR 16 Corridor Incident Response

WA State Patrol (WSP)

GCA 5414
(pdf 259 kb)

SR 305 Intersection

Port Madison Enterprises - Suquamish Tribe

GCA 5413
(pdf 380 kb)

Pierce County Emergency Road Maintenance, TMC After hours Communication

Pierce County

GCA 5406
(pdf 430 kb)

Biological Assessment

USDA Forest Service, Mt. Baker-Snoqualmie National Forest

GCA 5400
(pdf 745 kb)

Biological Assessment

Montana St Univ - Western Transportation Institute

GCA 5271
(pdf 97 kb)

Workshop

Sound Transit

GCA 5270
(pdf 290 kb)

Fund a Position at the City of Renton

City of Renton

GCA 5250
(pdf 85 kb)

Update Input-Output Model

WA State Office of Financial Management

GCA 5244
(pdf 68 kb)

Value Engineering Workshop

CALTRANS (CA Dept. of Trans)

GCA 5233
(pdf 729 kb)
Amendment 1
(pdf 185 kb)
Amendment 2
(pdf 207 kb)

Ranney Well Site

USDA Forest Service, Okanogan and Wenatchee National Forests

GCA 5231
(pdf 838 kb)

Transit Bus Pullouts - Pedestrian Paths - Bus Shelter Pad

LINK Transit

GCA 5226
(pdf 232 kb)

Project Coordination and Section 7 Endangered Species Act

US Dept of the Interior, Fish & Wildlife

GCA 5217
(pdf 257 kb)

Assistance Mt. Baker Highway Scenic Byway Management Plan

USDA Forest Service, Mt. Baker-Snoqualmie National Forest

GCA 5208
(pdf 147 kb)

Training Video Editing

Shoreline Community College

GCA 5207
(pdf 186 kb)

Officer flagging at Intersection

City of Seattle Police Department

GCA 5194
(pdf 325 kb)

Traffic Signals Timing

City of Seattle

GCA 5184
(pdf 345 kb)
Amendment 1
(pdf 38 kb)

US 97A/North of Wenatchee - Wildlife Fence

WA Dept of Fish and Wildlife

GCA 5183
(pdf 153 kb)

Wallula Reservoir

US Dept of the Interior - Bureau of Reclamation

GCA 5171
(pdf 785 kb)
Amendment 1
(pdf 63 kb)

Columbia River (Glenn Jackson) Bridge Repair

State of Oregon (ODOT)

GCA 5155
(pdf 197 kb)
Amendment 1
(pdf 99 kb)

Astoria Megler Bridge Painting North End

State of Oregon (ODOT)

GCA 5116
(pdf 225 kb)

Stanwood AMTRAK Station Loading Platform and Associated Facilities

City of Stanwood

GCA 5101
(pdf 108 kb)

Improvements I-205 corridor

City of Vancouver

GCA 5094
(pdf 186 kb)

Intersection rehabilitation

Spokane Transit Authority

GCA 5080
(pdf 201 kb)

Traffic Control

Washington State Patrol (WSP)

GCA 5076
(pdf 284 kb)

Slide assistance - SR 542

USDA Forest Service, Mt. Baker-Snoqualmie National Forest

GCA 5071
(pdf 127 kb)

Traffic Study

WA Traffic Safety Commission

GCA 5052
(pdf 758 kb)

Workshop Integrated Corridor Management

King County

GCA 5041
(pdf 137 kb)
Amendment 1
(pdf 48 kb)

Traffic Control - Downtown Bremerton Pedestrian/BTC Access Improvement Project

City of Bremerton

GCA 5032
(pdf 373 kb)

Advanced Transportation Management System (ATMS)

Oregon Department of Transportation (ODOT)

GCA 5010
(pdf 237 kb)

LINK bus pullouts, pedestrian pads, and bus shelter pads

LINK Transit

GCA 4998
 (pdf 986 kb)   

I-405 Kelsey Creek Community Park Wetland Mitigation

City of Bellevue

GCA 4969
(pdf 315 kb)
Amendment 1

(pdf 58 kb)

Transit Service

King County, Metro Transit Division

GCA 4924
(pdf 648 kb)
Amendment 1

(pdf 764 kb)

Drainage/Sewer Downtown Bremerton Pedestrian/BTC Access Improvement Project/Bremerton Ferry Tunnel

City of Bremerton

GCA 4908
(pdf 2.1 mb)

Archaeological curation of artifacts from Tse-whit-zen site

University of Washington

GCA 4894
(pdf 2.3 mb)

Springbrook Creek Wetland & Habitat Mitigation Bank

City of Renton

GCA 4849
(pdf 275 kb)

Culvert Replacement

City of Des Moines

GCA 4723
(pdf 368 kb)
Amendment 1
(pdf 132 kb)
Amendment 2
(pdf 1.10 mb)

Columbia River Crossing Project

State of Oregon (ODOT)

GCA 4716
(pdf 52 kb)
Amendment 1

(pdf 69 kb)
Amendment 2

(pdf 105 kb)

City of Seattle, King County, Snohomish County, Pierce County Areas

WA State Military Dept.

GCA 4687
(pdf 187 kb)

SR 543, I5 to International Boundary

City of Blaine

GCA 4542
(pdf 1.08 mb)
Amendment 1
(pdf 131 kb)

Acquire right of way

Skagit Transit

GCA 4281
(pdf 4.5 mb)
Supplement 1

(pdf 48 kb)
Supplement 2

(pdf 259 kb)
Supplement 3

(pdf 199 kb)
Supplement 4

(pdf 451 kb)

Wildlife Monitoring

Montana State University

GCA 4228
(pdf 156 kb)

SR 2 Et Al 2012 Eastern Region Chip Seal

Transportation Improvement board (TIB)

GCA 4216 
(pdf 1.3 mb)

Cultural Resource Services

Confederated Tribes of the Colville Reservation

GCA 4125
(pdf 187 kb)
Supplement 1
(pdf 37 kb)

SR 522 Corridor Improvement Project - 153rd Signal/Roadway Widening

City of Lake Forest Park

GCA 4106
(pdf 278 kb)
Amendment 1
(pdf 775 kb) 

Cultural and natural resource surveys

US Department of the Interior - North Cascades National Park

GCA 3987 
(pdf 494 kb)
Amendment 1 
(pdf 58 kb)

Transportation Planning Study

Port of Portland

GCB 1031
(pdf 617 kb)
Amendment 1
(pdf 2.8 mb)
Amendment 2
(pdf 823 kb)

Statewide Transportation System Survey & Ferry Rider Opinion Group

Wa. State Transportation Commission

GCB 1083
(pdf 727 kb)

SR 522, Paradise Lake Road to Snohomish River Interchange and Drainage

Snohomish County

GCB 1087
(pdf 1.88 mb)

SR 9 Corridor Improvements - Buffer Mitigation

Stillaguamish Tribe

GCB 1091
(pdf 173 kb)

SR 285/W End of George Sellar Bridge - Intersection Improvement

Wenatchee Police Department

GCB 1137
(pdf 214 kb)

I-5/Mellen Street to Blakeslee Junction

State of Washington
Transportation Improvement Board

GCB 1141
(pdf 231 kb)

SR 99/Spokane Street Overcrossing Timber Replacement

Port of Seattle

GCB 1142
(pdf 389 kb)

McManamy Road Bridge over Dry Creek

Kittitas County

GCB 1163
(pdf 274 kb)

Red Mountain Interchange traffic modeling

Benton-Franklin Council of Governments

GCB 1164
(pdf 233 kb)

Fort Road Improvements

Yakima County Public Works

GCB 1202
(pdf 600 kb)

SR 520/I-5 to Medina : Bridge Replacement and HOV Project

Suquamish Trive

GCB 1210
(pdf 1.3 mb)

SR4 Elochomon Slough Fish Passage Culverts

Washington State Fish and Wildlife

GCB 1211
(pdf 2.4 mb)

NSC - Parksmith - Interchange

Spokane County

GCB 1220
(pdf 10 mb)

SR 285/W End of George Sellar Bridge - Intersection Improvement

City of Wenatchee

GCB 1230
(pdf 227 kb)

WSDOT and DFW Fish Passage Study

Washington State Office Financial Management

GCB 1231
(pdf 168 kb)

WSDOT and DFW Fish Passage Study

Washington State Office Financial Management

GCB 1258
(pdf 1.4 mb)

SR 9/ Crown Ridge Blvd

City of Arlington

GCB 1259
(pdf 218 kb)
Amendment 1
(pdf 627 kb)

SR 9/ Crown Ridge Blvd

City of Arlington

GCB 1267
(pdf 150 kb)

SR 543- Pacific Highway NB FAST Lane Study

Whatcom Council of Governments

GCB 1275
(pdf 1.08 mb)

Combined Fund Drive

Washington State Secretary of State’s Office

GCB 1312
(pdf 3.4 mb)

Government Agreement Aid

Spokane County

GMB 1003
(pdf 721 kb)

I-5/SR 16 Eastbound Nalley Valley - HOV

City of Tacoma

GMB 1031
(pdf 849 kb)

Terrell Creek Bridge (Birch Bay State Park)

Washington State Parks

GM0 0034
(pdf 381 kb)
Memorandum of Understanding

(pdf 204 kb)
Supplement 1

(pdf 57 kb)
Supplement 2

(pdf 226 kb)
Supplement 3

(pdf 106 kb)
Supplement 4

(pdf 102 kb)
Supplement 5

(pdf 114 kb)
Supplement 6
(pdf 95 kb)
Supplement 7

(pdf 131 kb)
Amendment 1 to Supplement 7

(pdf 114 kb)

Obligations of constructing and maintaining Lewiston and Clarkston Bridge

State of Idaho

GM0 1425 
(pdf 257 kb)

Reciprocal agreement to share labor, equipment, and/or materials

City of White Salmon

UC 3537
Amendment 1-Task Order 15
(pdf 70 kb)

Agreement for the provision of management services for Talgo Trainsets

Talgo Inc.

UTB 1019
(pdf 987 kb)

SR 520: Medina to SR 202, Eastside Transit and HOV Project, 92nd Ave Distribution Reconnect (Electrical Power)

Puget Sound Energy

UTB 1059
(pdf 1.1 kb)

SR 520: Medina to SR 202, Eastside Transit and HOV Work by Utility - Actual Cost

Puget Sound Energy

UT0 1357
(pdf 821 kb)

SR 532, Corridor Improvements

Snohomish County PUD #1

UT0 1490
(pdf 3 mb)

SR 520: Medina to SR 202 Eastside Transit and HOV Project

City of Bellevue