Change orders over $500,000

Find change orders for our projects that are $500,000 or greater in cost.

When changes must take place in order to build the project as planned, we issue a change order to modify the original contract. This order directs the contractor how to handle the change, and also modifies the contract cost, plans and specifications as necessary. Oftentimes, these costs are included in the risk reserves for the project.

Change orders over $500,000: memorandum and reporting requirements (PDF 158KB)

Listed below are change orders for WSDOT projects costing over $500,000 since July 1, 2013.

State Route Project Title Contract No. Pin Change Order No. Date
I-5 I-5, NB Marine View Drive to SR 529 – Corridor & I/C Improvements Project (PDF 209KB) 9551 100549B 008R1 09/05/2023
I-5 I-5, NB Marine View Drive to SR 529 – Corridor & I/C Improvements Project (PDF 169KB) 9551 100549B 007R1 09/05/2023
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 170KB) 9015 852001L 155 09/05/2023
I-5 Portland Avenue to Port of Tacoma Road - Southbound HOV (PDF 186KB) 9157 300509S, 300556P 043 09/05/2023
I-5 & I-205 Concrete Panel Replacement and Joint Rehabilitation (PDF 265KB) 9841 400524C, 420523C, 420523B 006 06/14/2023
SR 99 & SR 519 Alaskan Way Viaduct - Replacement South Access Surface Streets (PDF 485KB) 9662 809936E 050 06/12/2023
I-5 Portland Avenue to Port of Tacoma Road - Southbound HOV (PDF 212KB) 9157 300509S, 300556P 009 05/24/2023
I-5 Portland Avenue to Port of Tacoma Road - Southbound HOV (PDF 189KB) 9157

300509S, 300556P

 059R1 05/02/2023
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 6MB) 9015 852001L 144 05/02/2023
US 395 NSC Spokane River to Columbia - Shared Use Path (PDF 151KB) 9552 600015F 026 04/19/2023
I-90 Floating Bridges Anchor Cable Replacement (PDF 161KB) 9705 109024T, 109024S 008 R1 04/05/2023
I-5 NB Seneca St Vic to SR 520 Mobility Improvements (PDF 141KB) 9622 100521W, 100521X 033 04/04/2023
US 195 Old BNRR Bridge to Jct SR 271 PCCP Rehabilitation (PDF 106KB) 9779 619505B, 619599A 003 03/07/2023
SR 506 SR 506, 1.5 Miles N Of Frontage Rd to I-5 Emergency Bridge Repair (PDF 271KB) 9795 450621E 005 12/05/2022
I-5 I-5 Dike Access W, Br MP 22.7 & BNRR Br Painting (PDF 643KB) 9805 400519R, 400519Q 001 11/09/2022
I-5 I-5, SB S Spokane St to I-90 W-S Ramp Deck Overlay (PDF 117KB) 9611 100516H, 109004W 011 10/27/2022
I-5 I-5, SB S Spokane St to I-90 W-S Ramp Deck Overlay (PDF 1.4MB) 9611 100516H, 109004W 010 09/20/2022
SR 513 SR 513, Montlake Bridge Mechanical Rehab & Deck Replace & Joint (PDF 120KB) 9680 151301B, 151301C, 151312B 005 09/15/2022
I-90 I-90, Eastgate to SR 900 Corrididor Improvements (PDF 86KB) 9429 109052P 044 09/15/2022
I-405 I-405, NE 132nd Street Interchange Project (PDF 445KB) 9573 140567B, 140525C, 140525D 006 R1 08/22/2022
US 395 US 395, NSC Spokane River to Columbia (PDF 169KB) 9587 600015B, 600015C, 600015D, 600015E 020 08/04/2022
SR 290 SR 290, Barker Rd BNSF Grade Separation Spokane County - MP 12.5 (PDF 8.2MB) 9623   003 R1 06/28/2022
I-5 I-5, Portland Avenue to Port of Tacoma Road - Southbound (PDF 5.5MB) 9157 300509S 027 05/12/2022
SR 9 SR 9, SR 204 Intersection Improvements (Stage 2) (PDF 4.8MB) 9656 100910K 015 02/23/2022
I-5 I-5, NB Seneca St Vic to SR 520 Mobility Improvements (PDF 122KB) 9622 100521W, 100521X 004 02/16/2022
US 395 US 395, NSC Sprague Ave to Spokane River Phase 1 (PDF 2.8MB) 9600 600015M 003 02/16/2022
I-405 I-405, Renton to Bellevue Widening and Express Toll (PDF 167KB) 9242 140504B, 140504N, 140500T, 840541F 002 02/16/2022
I-405 I-405, Renton to Bellevue Widening and Express Toll (PDF 1.7MB) 9242 140504B, 140504N, 140500T, 840541F 034 08/19/2021
SR 509 SR 509, I-5 to 24th Ave S. - New Expressway Project (PDF 1.3MB) 9424 150907E 005 08/18/2021
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 196KB) 9015 852001L 013 08/16/2021
SR 202 SR 202, Evans Creek & Patterson Creek Fish Passage (PDF 792KB) 9269 120215A, 120215C 7 06/15/2021
  Lewis and Clark Bridge, Superstructure Painter (PDF 1.6MB) 7895 443313P 010 05/24/2021
I-405 I-405, Renton to Bellevue Widening and Express Toll (PDF 111KB) 9242 140504B, 140504N, 140500T, 840541F 036 05/14/2021
I-405 I-405, Renton to Bellevue Widening and Express Toll (PDF 1.5MB) 9242 140504B, 140504N, 140500T, 840541F 18 03/01/2021
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 640KB) 9015 852001L 077 03/01/2021
I-90 I-90 / 468th Avenue Southeast to West Summit Rd EB - Rehab (PDF 783KB) 9036 509012S, 509013M, 509013T, 509015I,
509015J, 509016L		 54 01/06/2021
I-405 I-405, Renton to Bellevue Widening and Express (PDF 1.26MB) 9242 140500T, 140504B, 140504N, 840541F 15 12/30/2020
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 1.5MB) 9015 852001L 076 12/29/2020
  Lacamas Creek Bridge Replacement (PDF 1.7MB) 9419 450607A 001 12/29/2020
SR 99 SR 99, AWV Demolition Decommissioning & Surface Street (PDF 2.2MB) 9127 809939X 44 12/28/2020
  Bagley and Siebert Creeks-Remove Fish Barriers (PDF 2.07MB) 9516 310104F, 310198G 010 11/10/2020
SR 520 SR 520, Montlake to Lk Washington I/C and Bridge (PDF 2.1MB) 9015 852001L 068 09/30/2020
SR 520 SR 520, Montlake to Lake Washington I/C and Bridge (PDF 189KB) 9015 852001L 64 09/02/2020
I-82 I-82, South Union Gap Interchange - Construct Ramps (PDF 1.7MB) 9247 508209U 28 08/31/2020
I-82 I-82, South Union Gap Interchange - Construct Ramps (PDF 473KB) 9247 508209U 24 08/03/2020
SR 305 SR 305 / Agate Pass Bridge Painting (PDF 322KB) 9409 330524A 11 08/03/2020
SR 20 SR 20, Deception Pass and Canoe Pass Bridges Paint (PDF 377KB) 9344 102026K, 102026L, 102026M 006 06/23/2020
SR 530 SR 530 / Trafton Creek & Schoolyard Creek - Fish Passage (PDF 1.7MB) 9143 153026A, 153026B 004 6/19/2020
I-5 I-5, Steilacoom-Dupont Rd to Thorne Lane Corridor (PDF 308KB) 9133 300502T, 300503T 14 R1 06/18/2020
I-90 I-90, Two-Way Transit & HOV Operation, Stage 3 (PDF 1.8MB) 8662 109040R 167 R4 06/04/2020
SR 305 SR 305 / Agate Pass Bridge Painting (PDF 1.2MB) 9409 330524A 9 05/18/2020
SR 99 SR 99 / AWV Demolition Decommissioning & Surface Street Project (PDF 959KB) 9127 809939X 31 05/14/2020
SR 530 SR 530, Trafton Creek & Schoolyard Creek - Fish Passage (PDF 2.6MB) 9143 153026A, 153026B 6 05/14/2020
SR 99 SR 99 / AWV Demolition Decommissioning & North Surface Street (PDF 1.1MB) 9127 809939X 14 05/14/2020
SR 99 SR 99 / AWV Demolition Decommissioning & Surface Street Project (PDF 1.4MB) 9127 809939X 027 05/04/2020
SR 202 SR 202, Little Bear Creek Fish Barrier Removal (PDF 1.4MB) 8865 120200D 22R1 03/16/2020
I-5 I-5 Steilacoom-DuPont Rd to Thorne Lane - Corridor (PDF 241KB) 9133 300502T, 300503T 19 03/03/2020
SR 99 SR 99, Bored Tunnel Alternative Design-Build Project (PDF 7.2MB) 7999 809936E 206 02/24/2020
US 101 US 101, West Jefferson County Remove Fish Barriers (PDF 1.8MB) 9398 310155G, 310198D, 310199J 2 02/20/2020
SR 99 SR 99, George Washington Bridge Painting & Paving (PDF 358KB) 9168 109946C, 109946D 21 02/13/2020
SR 20 SR 20, Deception Pass and Canoe Pass Bridges (PDF 1.3MB 9344 102026K, 102026L, 102026M 5 01/29/2020
US 101 US 101, N of SR 107 Stabilize Slope (PDF 3.3MB) 9430 310121G 2 01/08/2020
SR 99 SR 99 / AWV Demo., Decom., and Surface Street Project (PDF 2MB) 9127 809936X 29 01/07/2020
I-90 I-90, 468th Ave SE to W Summit Rd Concrete, Deck (PDF 1MB) 9036 509012S, 509013M, 509013T, 509015I, 509015J, 509016L 44 12/26/2019
I-5 I-5, NB MLK Jr Way to NE Ravenna Bridge, Pavement Repair & More (PDF 889 KB) 8952

100512T, 100515B, 100516G, 100519B, 100522C, 100516E, 100515C

 28 12/26/2019
SR 99 SR 99, AWV-Replacement South (PDF 359KB) 9160 809936E 89R2 12/26/2019
I-5 M St to Portland Ave - HOV (PDF 2.8MB) 8607 300509M 288R1 06/13/2019
US 101 Coffee Creek - Remove Fish Barrier (PDF 1.09MB) 9018 310195H 3 06/06/2019
I-90 468th Ave SE to W Summit Rd. Rehab. Conc/Deck (PDF 1.5MB) 9036 509012S, 509013M, 509013T, 509015I, 509015J, 509016L 35 06/05/2019
SR 99 SR 99, AWV Demolition, Decommissioning, and Surface St Project (PDF 7.8MB) 9127 809939X 4 04/22/2019
SR 99 SR 99, AWV Demolition, Decommissioning, and Surface St Project (PDF 5MB) 9127 809939X 11 09/10/2019
I-90 Floating Bridges Replace Anchor Cables (PDF 1.37MB) 9151

109024M, 109024N

 22 05/15/2019
SR 99 SR 99, AWV Replacement South Access Connection (PDF 2.9MB) 9160 809936E 84 06/20/2019
I-90 468th Ave. SE to W Summit Rd. Rehab. Conc/Deck (PDF 444KB) 9036 509012S
509013M
509013T
509015I
509015J
509016L		 32 03/22/2019
I-90 468th Ave. SE to W Summit Rd. Rehab. Conc/Deck (PDF 696KB) 9036 509012S
509013M
509013T
509015I
509015J
509016L		 22 05/08/2018
I-90 468th Ave. SE to W Summit Rd. Rehab. Conc/Deck (PDF 190KB) 9036 509012S
509013M
509013T
509015I
509015J
509016L		 29 10/29/2018
  Hood Canal Bridge Special Repair - Gear Boxes (PDF 184KB) 8968 310439C 11 04/16/2018
I-90 I-90/Adams Co Line to Spokane Co Line - Paving (PDF 159KB) 8977 609023T, 609024B 3 11/01/2017
  Tacoma Amtrak Cascades Station (PDF 9.7MB) 8895 730310A 63 06/30/2017
  Tacoma Amtrak Cascades Station (PDF 505KB) 8895 730310A 67 06/19/2017
SR 522 SR 522, Snohomish River bridge to US 2 Vic (PDF 650KB) 8128 152234E 188 02/02/2017
I-5 I-5 NB MLK Jr Way to Ravenna Bridge Pavement Repair & More (PDF 636KB) 8952 100512T
100515B
100516G
100519B
100522C
100516E
100515C		 18 04/19/2019
I-5 I-5/I-205 to North Fork Lewis River Bridge (PDF 2MB) 8918 400516C 3 12/14/2016
I-5 I-5 Steilacoom-DuPont Rd to Thorne Lane - Corridor (PDF 244KB) 9133 300503T
300502T		 5 11/13/2018
I-5 I-5/SR 16 Interchange - Construct HOV Connections (PDF 1.2MB) 8818 300566A 001 10/25/2016
I-405 / SR 167 I-405/SR167 Interchange Direct Connector Project (PDF 943KB) 8811 140504K
116721B		 01R2 12/21/2016
SR 14 SR 14, 6th St to Bingen (PDF 1.4MB) 8766 401416P
401415B		 14 10/07/2016
SR 99 SR 99, George Washington Memorial BR, Painting Stage 1 (PDF 174KB) 8727 109947B 11 06/06/2017
SR 99 SR 99/AWV Demolition, Decommissioning, and Surface St Project (PDF 9.7MB) 9127 809939X 001 11/05/2018
SR 99 SR 99, AWV Replacement North Access Connection (PDF 8.7MB) 8549 809936E 125 05/08/2016
SR 99 SR 99, AWV Replacement NA Connection (PDF 4.3MB) 8549 809936E 169 07/21/2016
SR 99 SR 99, AWV Replacement North Access Connection (PDF 5.1MB) 8549 809936E 133 05/11/2016
SR 99 SR 99, AWV Replacement South Access Connection (PDF 16MB) 9160 809936E 022 11/27/2018
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 542KB) 7999 809936E 157 12/21/2016
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1.5MB) 7999 809936E 203R1 01/22/2019
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 5MB) 7999 809936E 172 03/14/2018
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 300KB) 7999 809936E 109 02/23/2015
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 8.7MB) 7999 809936E 145 05/31/2016
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1.3MB) 7999 809936E 136 05/20/2016
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1.2MB) 7999 809936E 140 05/20/2016
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1.7MB) 7999 809936E 113 10/15/2015
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 4.3MB) 7999 809936E 88 03/19/2015
SR 395 NSC-BNSF Railway Structures/Realignment (PDF 1.9MB) 8496 600004A 14 05/14/2015
SR 530 SR 530/Skaglund Hill Vic to C-Post Rd Vic (PDF 4.8MB) 8630 153036E 4 03/05/2015
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 284KB) 7999 809936E 074R1 11/26/2014
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1.3MB) 7999 809936E 106 03/04/2015
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 1MB) 7999 809936E 114 11/23/2015
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 881KB) 7999 809936E 128 11/23/2015
I-90 I-90, Two-Way Transit & HOV Operations Stage 3 (PDF 459KB) 8662 109040R 74 02/03/2017
I-90 I-90, Two-Way Transit & HOV Operations (PDF 224KB) 8662 109040R 89 11/02/2017
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 597KB) 8127 509090C 065 09/16/2013
I-90 I-90, Floating Bridges Replace Anchor Cables (PDF 559KB) 9151 109024M
109024N		 21 04/17/2019
I-90 I-90, Floating Bridges Replace Anchor Cables (PDF 559KB) 9151 109024M
109024N		 14 02/06/2019
I-90 I-90, Floating Bridges Replace Anchor Cables (PDF 187KB) 9151 109024M
109024N		 7R1 10/08/2018
I-90 I-90/Snowshed to Keechelus Dam Phase 1C (PDF 244KB) 8127 509090C 164 08/21/2017
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Wall 7 Vic. Final Agreement (PDF 1.3MB) 8127 509090C 118 04/09/2015
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - East End Tie-In to 2A (PDF 1.2MB) 8127 509090C 116 & 117 04/09/2015
SR 520 SR 520 West Approach Bridge North Project (PDF 3.5MB) 8625 852004B 194 12/27/2018
SR 520 SR 520 West Approach Bridge North Project (PDF 2MB) 8625 852004B 101 03/31/2017
SR 520 SR 520 West Approach Bridge North Project (PDF 3.9MB) 8625 852004B 72 12/19/2016
SR 520 SR 520 West Approach Bridge North Project (PDF 251KB) 8625 852004B 135 12/19/2016
SR 520 SR 520 West Approach Bridge North Project (PDF 498KB) 8625 852004B 138 06/11/2018
SR 520 SR 520 West Approach Bridge North Project (PDF 730KB) 8625 852004B 013 04/24/2015
SR 520 SR 520 West Approach Bridge North Project (PDF 400KB) 8625 852004B 028 07/17/2015
SR 520 SR 520 West Approach Bridge North Project (PDF 1.3MB) 8625 852004B 115 09/19/2016
SR 520 SR 520 West Approach Bridge North Project (PDF 1MB) 8625 852004B 081 07/06/2016
SR 520 SR 520 West Approach Bridge North Project (PDF 460KB) 8625 852004B 068 02/01/2016
SR 520 SR 520 Pontoon Construction Design-Build (PDF 5MB) 7826 852003A 101 07/17/2013
SR 520 SR 520 Floating Bridge and Landings Project (PDF 729KB) 8066 852004B 230 02/13/2017
SR 520 SR 520 Floating Bridge and Landings Project (PDF 560KB) 8066 852004B 195 11/21/2016
SR 520 SR 520/I-5 to Medina-Evergreen Point Floating (PDF 463KB) 8066 852004B 108 07/26/2013
SR 520 SR 520 Floating Bridge and Landings Project (PDF 2.3MB) 8066 852004B 200 07/18/2016
SR 520 SR 520 Floating Bridge and Landings Project (PDF 477KB) 8066 852004B 208 05/05/2016
SR 520 SR 520 Floating Bridge and Landings Project (PDF 489KB) 8066 852004B 207 06/20/2016
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 911KB) 8127 509090C 049 07/26/2013
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 778KB) 8127 509090C 059 08/06/2013
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 620KB) 8127 509090C 107 10/15/2014
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 385KB) 8127 509090C 108 10/15/2014
I-90 I-90/Keechelus Dam to Stampede Pass Phase 2A (PDF 10.5MB) 8715 5090900 7 12/07/2015
SR 520 SR 520, Floating Bridge and Landings Project (PDF 885KB) 8066 852004B 68 12/11/2015
SR 520 SR 520, Floating Bridge and Landings Project (PDF 9.7MB) 8066 852004B 191 05/18/2015
SR 520 SR 520, Floating Bridge and Landings Project (PDF 2.8MB) 8066 852004B 190 02/11/2015
SR 520 SR 520, Floating Bridge and Landings Project (PDF 404KB) 8066 852004B 123 11/14/2013
SR 520 SR 520, Floating Bridge and Landings Project (PDF 2.3MB) 8066 852004B 180 12/31/2014
SR 520 SR 520, Floating Bridge and Landings Project (PDF 391KB) 8066 852004B 128 11/21/2013
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 710KB) 8127 509090C 74 12/10/2013
I-90 I-90/Snowshed to Keechelus Dam Phase 1C - Replace Snowshed and Add Lanes (PDF 1.2MB) 8127 509090C 73 03/20/2014
SR 520 SR 520, Floating Bridge and Landings Project (PDF 2.3MB) 8066 852004B 122 12/31/2013
SR 520 SR 520, Floating Bridge and Landings Project (PDF 487KB) 8066 852004B 121 12/31/2013
SR 520 SR 520, Floating Bridge and Landings Project (PDF 1.8MB) 8066 852004B 142 03/27/2014
SR 520 SR 520 Pontoon Construction Design-Build Project (PDF 1.8MB) 7826 852003A 111 12/26/2013
SR 167 SR 167 Puyallup River Bridge - Bridge Replacement - Truss Repair (PDF 3.9MB) 8513 316725A 2 01/24/2014
SR 520 SR 520, West Connection Bridge (PDF 294KB) 8432 852004B 4 01/14/2014
SR 520 SR 520, West Connection Bridge (PDF 3.6MB) 8432 852004B 9 05/29/2014
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 301KB) 7999 809936E 94 06/04/2014
SR 99 SR 99, Bored Tunnel Alternative Design (PDF 357KB) 7999 809936E 73 08/08/2014
SR 520 SR 520, Eastside Transit & HOV Project (PDF 365KB) 7963 852021A 116 03/21/2018
SR 520 SR 520, Eastside Transit & HOV Project (PDF 4.4MB) 7963 852021A 94 10/13/2014
SR 520 SR 520, West Approach Bridge North Project (PDF 7.6MB) 8625 852004B 116 10/23/2017
SR 433 SR 433, Lewis and Clark Bridge Superstructure Painter (PDF 319KB) 7895 443313P 8 11/24/2014
SR 104 SR 104, Hood Canal Bridge (PDF 551KB) 8677 310439A 27 07/12/2017
SR 104 SR 104, Hood Canal Bridge (PDF 730KB) 8677 310439A 26 12/15/2016
SR 104 SR 104, Hood Canal Bridge (PDF 505KB) 8677 310439A 25 10/05/2016
SR 104 SR 104, Hood Canal Bridge (PDF 568KB) 8677 310439A 15 12/03/2015
I-5 I-5 Portland Ave to Port of Tacoma Road (PDF 990KB) 8670 300509N 201 01/16/2018
I-5 I-5 Portland Ave to Port of Tacoma Road (PDF 1MB) 8670 300509N 36 08/19/2015
I-5 I-5 Portland Ave to Port of Tacoma Road (PDF 337KB) 8670 300509N 43 08/19/2015
I-5 I-5 Portland Ave to Port of Tacoma Road (PDF 236KB) 8670 300509N 303 11/13/2018
I-5 I-5 Portland Ave to Port of Tacoma Road (PDF 236KB) 8670 300509N 315 02/21/2019
I-5 I-5, M St to Portland Ave - HOV (PDF 729KB) 8607 300509M 020R1 04/10/2015
I-5 I-5, M St to Portland Ave - HOV (PDF 823KB) 8607 300509M 180R1 12/28/2016
I-5 I-5, M St to Portland Ave - HOV (PDF 540KB) 8607 300509M 9 10/23/2014
I-5 I-5, Mellen Street to Blakeslee Junction - Stage 2 (PDF 401KB) 8473 400511W 146 11/08/2017

 

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