Curfew hours & holiday restrictions

Days when travel is restricted: Vehicles operating under special permit for overweight/over dimensional, except as provided for in Washington Administrative Code (WAC 468-38-075), may be restricted from the state highways on the holidays.

Holiday restrictions

Vehicles operating under special motor vehicle permit (PDF 256KB) for overweight/over dimensional, except as provided for in WAC 468-38-075, may be restricted from the state highways on the holidays of New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day and the day after Thanksgiving, Christmas Day, and commencing at noon of the day preceding said holidays.

  • The day before New Year’s Day starting at noon and New Year's Day
  • The day before Memorial Day starting at noon and Memorial Day
  • The day before Independence Day starting at noon and Independence Day
  • The day before Labor Day starting at noon and Labor Day
  • The day before Thanksgiving Day starting at noon, Thanksgiving Day and the day after Thanksgiving
  • The day before Christmas starting at noon and Christmas Day

Pilot/escort vehicle requirements

A pilot/escort vehicle and operator must comply with the requirements of WAC 468-38-100 Escort vehicle requirements.

Nighttime movements

A vehicle or vehicle combinations not exceeding the defined envelope of 12 feet wide, 14 feet 6 inches high and 105 feet long, including legal overhang(s), may move at night. A vehicle or vehicle combination which exceeds the defined envelope may also be permitted to move at night on state highways subject to Department preferred

hours/routes of travel, and must have “Nighttime movement approved” stated on permits. All night moves must comply with published curfew restrictions. Night means one-half hour after sunset to one-half hour before sunrise. Vehicle and load must have proper lighting (49 CFR 393.11).

Winter road restrictions

Movement by permit is prohibited in areas where any of the following signs are displayed: “TRACTION ADVISORY OVERSIZE VEHICLES PROHIBITED”, VEHICLES OVER 10,000GVWR CHAINS REQUIRED”, and “ALL VEHICLES CHAINS REQUIRED EXCEPT ALL-WHEEL DRIVE” except as specified in WAC 468-38-075.

Commuter curfew hours: (Monday through Friday only)

Vehicles operating under a Special Motor Vehicle Permit that are required to display “Oversize Load” signs are restricted from the following areas during the listed times. Exception: Vehicles with over dimension in width only and do not exceed the width limits of the table are not subject to curfew hours. Over weight is not a factor in this restriction unless the vehicle cannot maintain the speed of surrounding traffic.

Commuter Curfew Hours: (Monday through Friday only) Vehicles operating under a Special Motor Vehicle Permit that are required to display “Oversize Load” signs are restricted from the following areas during the listed times (table). Exception: Vehicles with over dimension in width only and do not exceed the width limits of the table are not subject to curfew hours. Over weight is not a factor in this restriction unless the vehicle cannot maintain the speed of surrounding traffic.
Vicinity SR

Direction

Milepost

Location and Boundaries

Hours (M-F)

Width

Seattle-Everett 2

EB

0 - 2.42

I-5 to SR 204

3-7 PM

9’

Seattle-Everett 2

WB

2.42 - 0

I-5 to SR 204

6-9 AM

9’

Seattle-Everett 5

NB

127.48 - 155.94

SR 512 to SR 599

6-9 AM, 3-6 PM

10’

Seattle-Everett 5

SB

155.94 - 127.48

SR 512 to SR 599

3-6 PM

10’

Seattle-Everett 5

NB

155.94 -174.58

SR 599 to SR 523

6-9 AM, 3-6 PM

9’

Seattle-Everett 5

SB

174.58 - 155.94

SR 599 to SR 523

6-9 AM, 3-6 PM

9’

Seattle-Everett 5

NB

174.58 -199.11

SR 523 to SR 528

3-6 PM

10’

Seattle-Everett 5

SB

199.11 - 174.58

SR 523 to SR 528

6-9 AM, 3-6 PM

10’

Seattle-Everett 5

NB

199.11 - 206.08

SR 528 to SR 531

4-6 PM

10’

Seattle-Everett 5

SB

206.08 - 199.11

SR 528 to SR 531

7-9 AM, 4-6 PM

10’

Seattle-Everett 18

EB

.01 - 4.15

I-5 to SR 164

6-9 AM, 3-7 PM

10’

Seattle-Everett 18

WB

4.15 - .01

I-5 to SR 164

6-9 AM, 3-7 PM

10’

Seattle-Everett 18

EB

4.15 -11.38

SR 164 to SR 516

6:30-8:30 AM, 3-7 PM

10’

Seattle-Everett 18

WB

11.38 - 4.15

SR 164 to SR 516

6-9 AM, 3-7 PM

10’

Seattle-Everett 90

EB

2.54 - 9.93

I-5 to I-405

6-9 AM, 3-7 PM

10’

Seattle-Everett 90

WB

9.93 - 2.54

I-5 to I-405

6-9 AM, 3-7 PM

10’

Seattle-Everett 90

EB

9.93 -18.36

I-405 to Sunset I/C

3-7 PM

10’

Seattle-Everett 90

WB

18.36 - 9.93

I-405 to Sunset I/C

6-9 AM, 3-7 PM

10’

Seattle-Everett 167

NB

5.98 - 14.33

SR 512 to SR 18

6-9 AM

10’

Seattle-Everett 167

SB

14.33 - 5.98

SR 512 to SR 18

3-7 PM

10’

Seattle-Everett 167

NB

14.33 - 26.29

SR 18 to I-405

6-9 AM, 3-7 PM

10’

Seattle-Everett 167

SB

26.29 - 14.33

SR 18 to I-405

3-7 PM

10’

Seattle-Everett 405

NB

0 - 30.32

Entire Route

6-9 AM, 3-7 PM

10’

Seattle-Everett 405

SB

30.32 - 0

Entire Route

6-9 AM, 3-7 PM

10’

Seattle-Everett 518

EB

0 - 3.81

SR 509 to I-5

6-9 AM, 3-7 PM

10’

Seattle-Everett 518

WB

3.81 - 0

SR 509 to I-5

6-9 AM, 3-7 PM

10’

Seattle-Everett 522

EB

11.10 - 14.09

I-405 to SR 9

3-7 PM

10’

Seattle-Everett 522

WB

14.09 - 11.10

I-405 to SR 9

6-9 AM

10’

Tacoma 5

NB

118 - 127.48

Exit 118 to SR 512

6:30-8:30 AM, 4-6 PM

10’

Tacoma 5

SB

127.48 - 118

Exit 118 to SR 512

6:30-8:30 AM, 4-6 PM

10’

Tacoma 16

EB

10.28 - 0

I-5 to Olympic Drive

6-9 AM

10’

Tacoma 16

WB

0 – 10.28

I-5 to Olympic Drive

3-7 PM

10’

Tacoma 512

EB

0 - 8.74

I-5 to SR 161

3-7 PM

10’

Tacoma 512

WB

8.74 - 0

I-5 to SR 161

7-9 AM, 3-7 PM

10’

Tacoma 512

EB

8.74 - 12.06

SR 161 to SR 167

3-7 PM

10’

Tacoma 512

WB

12.06 - 8.74

SR 167 to SR 161

3-7 PM

10’

Olympia 5

NB

99 - 109

Exit 99 to Exit 109

4-6 PM

10’

Olympia 5

SB

109 - 99

Exit 109 to Exit 99

4-6 PM

10’

Vancouver 5

NB

0 - 7.48

Oregon to I-205

3-6 PM

10’

Vancouver 5

SB

7.48 - 0

I-205 to Oregon

6-9 AM

10’

Vancouver 205

NB

26.59 – 37.16

Oregon to I-5

4-7 PM

10’

Vancouver 205

SB

37.16 - 26.59

I-5 to Oregon

6-9 AM

10’

Kelso 433

NB

.94 - 0

Lewis and Clark Bridge

6-9 AM

10’

Kelso 433

SB

0 - .94

Lewis and Clark Bridge

6-9 AM

10’

Spokane 90

EB

272.66 - 295.73

Medical Lk. to Liberty Lk. Exit

6-9 AM, 3-7 PM

11’2”

Spokane 90

WB

296.64 - 272.96

Liberty Lk. to Medical Lk. Exit

6-9 AM, 3-7 PM

11’2”

8,683 animals crossed the Snoqualmie Pass East Project area

as recorded by WSDOT and partners in 2020 and 2021.

46% increase in Amtrak Cascades ridership to 251,000 passengers

in 2021 compared to 172,000 in 2020.

Nine wetland and stream mitigation sites across 32.7 acres added

to our monitoring program in 2021 to help offset climate change impacts.