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SEATTLE AREA CONSTRUCTION LOOK AHEAD

Last updated: October 19, 2017

To view this information geographically, visit SDOT's Travelers Information Map

Click here to download the PDF of this information

HIGHLIGHTS

October 16 - 19: Northbound 4th Ave. S. closed nightly between S. Holgate St. and S. Royal Brougham Way.

October 16 - 30: 9th Ave. N. closed nightly between Mercer St. and Republican St.

October 22: Seattle Sounders host the Colorado Rapids at 1PM at CenturyLink Field.

October 28: Washington Huskies host UCLA at 12:30PM at Husky Stadium.

October 28 - late November: Westbound Denny Way closed nightly between Stewart St. and Minor Ave. N; eastbound reduced to one lane.

 

Note: Information subject to change. Additional construction or events may be planned in the Seattle area.
Questions? Contact: construction.coordination@seattle.gov or call 206-684-ROAD

Downtown Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
September 25
to
November 10
9AM - 3PM
Lane and sidewalk closures on westbound Denny Way between Stewart St. and Fairview Ave. N. Crews will close the curb lane and adjacent sidewalk on westbound Denny Way between Stewart St. and Fairview Ave. N. while replacing the curb and sidewalk.
Oct. 19  11:59PM
to
Oct. 20  5AM
Northbound I-5 lane and ramp closures in downtown Crews will close the left two lanes of northbound I-5 between the University St. on-ramp and the Mercer St. off-ramp while repaving the roadway.  Both ramps will also be closed.
October 25
9AM - 1PM
Seattle Symphony Open Rehearsal Student Concert At Benaroya Hall.
October 27 & 28 Seattle National College Fair At Washington State Convention Center.  Fair hours are 9AM - 12PM Friday, and 12PM - 4PM Saturday.
October 27
9:30AM - 2:30PM
Seattle Symphony Friday Matinees Concert At Benaroya Hall.
October 27
7PM - 10PM
October 28
12:30AM - 4:30AM
Oct. 29
12:30AM - 8:30AM
6th & Westlake intersection closed 6th Ave. closed nightly at Stewart St. during pavement restoration.  In addition, Westlake Ave. closed at 7th Ave, and Stewart St. reduced to one lane at 6th Ave.  Work is scheduled at night to accommodate Seattle Streetcar operations.
Oct 27 11:59PM
to
Oct 28 6AM
Lane and ramp closures on northbound I-5 in downtown Crews will close the three left lanes of northbound I-5 in downtown during repairs to a damaged impact attenuator.  The Seneca St. off-ramp will also be closed.
October 28
to
November 30
9PM - 6AM
Westbound Denny Way closed nightly between Stewart St. and Minor Ave. N. Crews will close westbound Denny Way nightly between Stewart St. and Minor Ave. N. during underground utility work.  One eastbound lane will also be closed between Minor and Stewart.
Nov. 4 12:01AM
to
Nov. 5 7PM
Howell St. closed between Minor Ave. and Yale Ave. Crews will close Howell St. between Minor Ave. and Yale Ave. during a large concrete mat pour.
Late - October 2017
to
Mid - 2020
Center City Connector Streetcar The Center City Connector is a segment of Seattle's streetcar system that will link the South Lake Union and First Hill Streetcar lines, creating a system that will connect over a dozen Seattle neighborhoods in Seattle's Center City.  Construction is starting soon in the Pioneer Square area. Beginning at the southern end of the alignment and working north, crews will be relocating and replacing utilities in preparation for streetcar track construction.
October 23
to
November 22
7AM - 5PM
Intermittent travel and parking lane closures on 1st Ave. S. between S. Jackson St. and Yesler Way. While crews pothole for underground utilities.
October 23
to
November 22
7AM - 5PM
Westbound S. Jackson St. intermittently closed between Occidental Ave. S. and 1st Ave. S. while crews pothole for underground utilities.
August 2017
to
2021
Washington State Convention Center Addition Project The Washington State Convention Center will build an additional facility on the site bordered by Pine and Howell Streets, and 9th and Boren Avenues.  Preliminary utility work will begin in Summer of 2017, with start of construction planned for 2018.  The new addition will open in 2021.
September 20
to
November 3
7AM - 3PM
West parking lane and adjacent travel lane on 9th Ave. closed between Olive Way and Pine St. during duct bank installation.
September 11
to
November 3
8PM - 5AM
Boren Ave. reduced to one lane of alternating traffic between Olive Way and Howell St. during sewer and gas line replacement.
September 11
to
November 3
8PM - 5AM
Olive Way closed nightly between Boren Ave. and Terry Ave. during sewer and gas line replacement.
August 2017
to
2023
Washington State Ferries -
Seattle Multimodal Terminal at Colman Dock Project
Washington State Ferries is replacing the aging and seismically vulnerable parts of Colman Dock in Seattle in order to maintain its critical role as a regional multimodal transportation hub.

Key project elements include:
Replacing the existing timber trestle portion of the dock with a new concrete and steel trestle;
Replacing the main terminal building;
Replacing the passenger-only ferry facility on the south edge of Colman Dock;
Constructing a new elevated walkway between the terminal building and the passenger-only ferry facility;
Replacing the overhead loading facility on the northernmost slip; Adding a bicycle entry and holding area north of Marion Street; Maintaining an elevated connection between the terminal building and the Marion St. Bridge;
Providing stairs and elevators to connect the facility to Alaskan Wy.
August  2017
to
Fall 2018
The King County Water Taxi and Kitsap Transit Fast Ferry will operate out of a temporary location on the north side of Colman Dock.  During this time, passengers will enter from Alaskan Way between Madison St. and Marion St.
May 2
to
early-2018
3rd Ave. Arterial Paving Project The Seattle Department of Transportation will repave 3rd Ave. through Belltown (Virginia St to Broad St).  Construction is currently slated to begin on Tuesday, May 2.  Crews will work from south to north, with the project area divided into four construction zones.  Work must be substantially complete in one zone before the contractor moves onto the next.
Zone 3
September
through
early-December
3rd Ave. reduced to one lane in each direction between Blanchard St. and Broad St.  Parking restricted on both sides of 3rd Ave.
September 18
to
October 20
24/7
Crews will close Blanchard St. between 2nd Ave. and 3rd Ave. while repaving the roadway.
September 22
to
October 20
24/7
Crews will close Bell St. between 4th Ave. and 3rd Ave. during water line and paving work.
January 2017
to
Fall 2017
2nd Ave. Mobility Improvements Project The Seattle Department of Transportation is making traffic signal improvements and extending the existing 2-way protected bike lane along 2nd Ave from Pike St to Denny Way. These improvements will organize the street and move people more efficiently.  Construction will start in early 2017 and the new protected bike lane is scheduled to open in fall 2017.
February 13
through
Fall 2017
Sidewalk, parking lane, and traffic lane restrictions on 2nd Ave. between Denny Way and Pike St. during potholing for underground utilities, and signal and foundation work.  During working hours, one lane will remain open at all times north of Lenora St; two lanes will remain open south of Lenora St. Work hours are 7AM to 6PM weekdays.  Intermittent lane closures on cross-streets are also possible during working hours.
May, 2016
to
late-2018
Denny Substation project Seattle City Light will construct a new electrical substation, its first and largest in 30 years, near the intersection of Denny Way and Stewart Street. An underground distribution network and transmission line will also be built to carry power to the substation and deliver it to customers.
April 4, 2016 Pontius Ave. N. permanently closed between Denny Way and John St.
Until further notice
24/7
Construction continues inside the substation work site. Work hours are 7AM to 7PM weekdays, and 9AM to 5PM Saturday.
February 29 2016
to
mid-2018
Denny Network project City Light's contractor, Shimmick Construction Company, Inc., began construction of the Denny Substation network on February 29, 2016. Work on the network will be completed in six stages. Each stage will begin with the installation of vaults, followed by the installation of a duct bank system that will connect the vaults. Street restoration will conclude each stage.  The project is expected to be complete by mid-2018.
October 2 - 29
24/7
6th Ave. reduced to two lanes between Lenora St. and Virginia St. for equipment staging.
October 16 - 30
6AM - 3PM
6th Ave. reduced to one lane at Virginia St. during duct bank and storm drain installation.  Virginia St. also reduced to two lanes at 6th Ave.
Oct 21 9AM
to
Oct 22 11:59PM
Eastbound Virginia St. reduced to one lane at Terry Ave. during roadway restoration work.  Westbound Virginia St. closed at Terry Ave. 
Oct 21 9AM
to
Oct 22 11:59PM
Eastbound Virginia St. reduced to one lane at 8th Ave. during roadway restoration work.  8th Ave. also reduced to one lane at Virginia St.
Until further notice
24/7
Elliott Bay Seawall Project Traffic on Alaskan Wy. S./Alaskan Wy. will be shifted to beneath the Viaduct between S. King St. and Pike St.  Traffic will also be shifted to the east side of Alaskan Wy. between Pike St. and Virginia St.
Until further notice
24/7
As seawall construction expands to the area adjacent to Colman Dock, ferry access for bicyclists and vehicles will shift to Yesler Wy.  Pedestrian access will be maintained via the Marion St. pedestrian bridge, and at street-level between Marion and Columbia St.
Until further notice
24/7
The Marion St. driveway at the Colman Dock shifts north, between Marion St. and Madison St.  During this time most vehicles will exit Colman Dock at Yesler Wy.  All trucks over 30' must exit at Yesler Wy.  Vehicular traffic directed to exit at the Marion St. driveway will turn right or left onto Alaskan Wy.  
January 4
to
late-2017
Seawall construction begins between Pine and Pike Streets.  Impacts include: removal of on-street parking and trees between Virginia St. and Pike St; removal of the sidewalk on the west side of street; installation of a water treatment facility at Virginia St. and Alaskan Wy.  Access to the Seattle Aquarium, Waterfront Park, and businesses will remain open.
Until Further Notice SR 99 Tunnel Project Parking under the Alaskan Way Viaduct is permanently closed between S King St and Pike St.
Until Further Notice Alaskan Way S.  is closed between S Atlantic St and Madison St until further notice.  Two-way traffic has been re-routed under the Alaskan Way Viaduct and Railroad Way S via 1st Ave S.
Until the SR 99 Tunnel opens to traffic 6th Ave N is closed between Thomas St and Republican St.  Harrison St is closed between Aurora Ave N and Broad St.  Republican St is closed between Aurora Ave N and 6th Ave N.
Until Further Notice 1201 2nd Ave.
2+U

1st & 2nd Ave. between University and Seneca; Seneca & University between 1st and 2nd

38-story office building
Opening: 2019
Construct 38-story office building.  Intermittent closure of sidewalk, parking, and travel lanes on 1st and 2nd Ave. between Seneca St. and University St, and on Seneca and University St. between 1st and 2nd Ave.
Until Further Notice 801 5th Ave.
The Mark

NW corner of 5th & Columbia
43-story high rise tower

Estimated completion: April 2017
24/7 closure of sidewalk and curb lane on the west side of 5th Ave. between Marion St. and Columbia St, and on the north side of Columbia St. between 5th Ave. and 4th Ave.  Closure of west travel lane on 5th between Marion and Columbia during working hours.
Until Further Notice 204 Pine St.
2nd Ave. between Pine and Stewart
40-story apartment building
Opening: 2017
Construct 40-story tower.  Intermittent closure of sidewalk and curb lane on the east side of 2nd Ave. between Stewart St. and Pine St, and on the north side of Pine St. between 2nd Ave. and 3rd Ave.  The alley to the east will also be closed.
Until Further Notice
24/7
2301 6th Ave.

707 residential units with ground-floor retail.

Opening: 2015
Intermittent sidewalk, curb lane, and traffic lane closures on  the east side of 5th Ave. between Battery St. and Bell St, the south side of Battery St. between of 5th Ave. and 6th Ave, the north side of Bell St. between of 6th Ave. and 5th Ave, and the west side of 6th Ave. between Bell St. and Battery St.
Until Further Notice
24/7
2021 7th Ave.
2101 7th Ave.

Block 14 & 19
Intermittent sidewalk, curb lane, and traffic lane closures on 7th Ave. between Lenora St. and Westlake Ave, on Lenora St. between of 7th Ave. and 6th Ave, on 6th Ave. between Lenora St. and Virginia St, on Virginia St. between 6th Ave. and Westlake Ave, on Westlake Ave. between 7th Ave. and Westlake Ave, and on Blanchard St. between 6th Ave. and 7th Ave.
East Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 17
to
December 22
24/7
Westbound E. Denny Way closed between Boylston Ave. E. and Belmont Ave. E. Crews will close westbound E. Denny Way between Boylston Ave. E. and Belmont Ave. E. for up to two months during tie-in to an underground transmission line.
September 2015
to
Late 2017
SR520 West Approach Bridge North Project 24th Ave. E. overpass closed to pedestrians and bicyclists during project.
North Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 31
7PM - 10PM
Trolloween Annual Halloween event begins with a 7PM performance at the Fremont Troll.  An 8PM march through the Fremont neighborhood follows, ending at the Doric Lodge (619 N. 36th St.).
Until Further Notice 1301 Dexter Ave. N.
Leeward

296-unit apartment building

Opening: 2017
Intermittent sidewalk, parking lane, and bike lane closures on the west side of Dexter Ave. N. between Lee St. and Comstock St.
Northeast Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 18
7AM - 5PM
NE 50th St. closed between 18th Ave. NE and 20th Ave. NE Crews will close NE 50th St. between 18th Ave. NE and 20th Ave. NE while repaving the roadway.
October 21 & 22
8AM - 3:30PM
Lane closures on Lake City Way NE between NE 113th St. and NE 133rd St. Crews will close the left lane of northbound and southbound Lake City Way NE between NE 113th St. and NE 133rd St. during median island cleanup.
October 22
9AM - 11AM
Alaskan Airlines Dawg Dash On University of Washington Campus, and on streets in Seattle's Ravenna and University District neighborhoods.
October 28
12:30PM - 3:30PM
UW Huskies vs. UCLA At Husky Stadium.  Go Dawgs!
October 29
9:30AM - 11AM
PurpleStride Puget Sound 2017 In Magnuson Park.  Fundraiser for pancreatic cancer.
November 4
Kickoff TBA
UW Huskies vs. Oregon At Husky Stadium.  Go Dawgs!
2013
to
2021
Sound Transit
Northgate Link Extension Project
Northgate Station
The elevated Northgate Station will be located east of 1st Ave NE, spanning NE 103rd Street. Station entrances will be on the Northgate Mall property north of NE 103rd Street and near the Northgate Transit Center south of NE 103rd Street.   Service is scheduled to begin in 2021.
Until further notice Parking is temporarily removed on the west side of 1st Ave. NE between NE 92nd St. and NE 95th St.
Until further notice The North Seattle Park-and-Ride lot and interim Park-and-Ride lot located near the former Marie Callender's restaurant in Northgate will close Monday, March 17, 2016.  The new interim Park-and-Ride will be located at the NW corner of NE 103rd St. and 5th Ave. NE.
Until further notice Construction of the Northgate light rail station will occupy space in the Northgate Park-and-Ride (West).  Fencing will go up around the middle section of the West lot as early as Dec. 7, 2016.  To offset the loss of those stalls, the north end of the former North Seattle Park & Ride will reopen on the west side of 1st Ave NE between NE 100th and 103rd Streets. 
2013
to
2021
Sound Transit
Northgate Link Extension Project
Roosevelt Station
Roosevelt Station will be located along the west side of 12th Ave NE between NE 65th and NE 67th streets in the Roosevelt neighborhood. The station will include a plaza with seating, public art and bike parking.  Service is scheduled to begin in 2021.
October 2013
through
2019
NE 66th St. and NE 67th St. between 12th Ave. NE and Roosevelt Wy. NE closed to through traffic.  The sidewalk and parking lane on the west side of 12th Ave. NE between NE 65th St. and NE 68th St. will also be closed.
Through
2020
Sound Transit
Northgate Link Extension Project
University District Station
Brooklyn Ave. NE closed between NE 45th St. and NE 43rd St.  NE 43rd St. closed between Brooklyn Ave. NE and the alley to the west.  NE 43rd St. eastbound only between Brooklyn Ave. NE and the alley to the east.
September 2015
to
Late 2017
SR520 West Approach Bridge North Project 24th Ave. E. overpass closed to pedestrians and bicyclists during project.
Northwest Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 19 & 20
7AM - 5PM
NW 59th St. closed between 28th Ave. NW and 26th Ave. NW Crews will close NW 59th St. between 28th Ave. NW and 26th Ave. NW while repaving the roadway.
October 31
4PM - 6PM
Magnolia Village Trick or Treat Event will close W. McGraw St. between 32nd Ave. W. and 34th Ave. W.
October 31
7PM - 10PM
Trolloween Annual Halloween event begins with a 7PM performance at the Fremont Troll.  An 8PM march through the Fremont neighborhood follows, ending at the Doric Lodge (619 N. 36th St.).
July 24
to
early 2018
24/7
W. Nickerson St. Paving Project Project will repave W. Nickerson St. between Etruria St. and 13th Ave. W.  Construction is expected to take approximately 6 months to complete.  Project will start in Zone B (3rd Ave. W. to 14th Ave. W.).  The roadway will be restricted to one lane in each direction, with temporary bike lane and sidewalk closures.
SODO Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 16 - 19
7PM - 7AM
Northbound 4th Ave S. closed nightly between S. Holgate St. and S. Royal Brougham Way Crews will close northbound 4th Ave S. nightly between S. Holgate St. and S. Royal Brougham Way while repaving the roadway.  Traffic will be detoured to 1st Ave. S. and 6th Ave. S.
October 17
to
Fall 2018
24/7
Northbound lane closure on 4th Ave. S. Argo Bridge Crews will close the right northbound curb lane on the 4th Ave. S. Argo Bridge (from S. Dawson St. to just south of the Costco driveway) for nine to twelve months during bridge maintenance.
October 21 & 22
11AM - 7PM
GE2 Gaming & Experiential Entertainment At WaMu Theater.
October 22
1PM - 3PM
Seattle Sounders vs. Colorado Rapids At CenturyLink Field.
October 23
to
November 22
7AM - 5PM
Parking and travel lane closures on 1st Ave. S. between S. King St. and Yesler Way Intermittent travel and parking lane closures on 1st Ave. S. between S. Jackson St. and Yesler Way. While crews pothole for underground utilities.
October 27
6:30PM - 1:30AM
FreakNight Festival 2017 At CenturyLink Field Event Center.
October 29
1:05PM - 4PM
Seattle Seahawks vs. Houston At CenturyLink Field.
November 5
1:05PM - 4PM
Seattle Seahawks vs. Washington At CenturyLink Field.
Late - October 2017
to
Mid - 2020
Center City Connector Streetcar The Center City Connector is a segment of Seattle's streetcar system that will link the South Lake Union and First Hill Streetcar lines, creating a system that will connect over a dozen Seattle neighborhoods in Seattle's Center City.  Construction is starting soon in the Pioneer Square area. Beginning at the southern end of the alignment and working north, crews will be relocating and replacing utilities in preparation for streetcar track construction.
October 23
to
November 22
7AM - 5PM
Intermittent travel and parking lane closures on 1st Ave. S. between S. Jackson St. and Yesler Way. While crews pothole for underground utilities.
October 23
to
November 22
7AM - 5PM
Westbound S. Jackson St. intermittently closed between Occidental Ave. S. and 1st Ave. S. while crews pothole for underground utilities.
Until further notice
24/7
Elliott Bay Seawall Project Traffic on Alaskan Wy. S./Alaskan Wy. will be shifted to beneath the Viaduct between S. King St. and Pike St.  Traffic will also be shifted to the east side of Alaskan Wy. between Pike St. and Virginia St.
Until further notice
24/7
As seawall construction expands to the area adjacent to Colman Dock, ferry access for bicyclists and vehicles will shift to Yesler Wy.  Pedestrian access will be maintained via the Marion St. pedestrian bridge, and at street-level between Marion and Columbia St.
Until further notice
24/7
The Marion St. driveway at the Colman Dock shifts north, between Marion St. and Madison St.  During this time most vehicles will exit Colman Dock at Yesler Wy.  All trucks over 30' must exit at Yesler Wy.  Vehicular traffic directed to exit at the Marion St. driveway will turn right or left onto Alaskan Wy.  
January 4
to
late-2017
Seawall construction begins between Pine and Pike Streets.  Impacts include: removal of on-street parking and trees between Virginia St. and Pike St; removal of the sidewalk on the west side of street; installation of a water treatment facility at Virginia St. and Alaskan Wy.  Access to the Seattle Aquarium, Waterfront Park, and businesses will remain open.
Until Further Notice SR 99 Tunnel Project Parking under the Alaskan Way Viaduct is permanently closed between S King St and Pike St.
Until Further Notice Alaskan Way S.  is closed between S Atlantic St and Madison St until further notice.  Two-way traffic has been re-routed under the Alaskan Way Viaduct and Railroad Way S via 1st Ave S.
Until the SR 99 Tunnel opens to traffic 6th Ave N is closed between Thomas St and Republican St.  Harrison St is closed between Aurora Ave N and Broad St.  Republican St is closed between Aurora Ave N and 6th Ave N.
August 17 2017
to
Winter 2018
4th Ave. S. Paving Project Project will repave 4th Ave. S. between S. Royal Brougham Way and S. Spokane St.  Construction is expected to take approximately 6 months to complete.
Sept 13
to
Late-October
24/7
Crews will close the east side of 4th Ave. S. between S. Spokane St. and S. Holgate St. while repaving the roadway.  Southbound and northbound traffic will be maintained on the west side of the roadway.  Works hours are 7AM - 6PM and 8PM - 6AM.
August 1
to
October 2017
Seattle City Light Project -
S. Washington St. Infrastructure Improvement Project
Crews will close westbound S. Washington St. between 1st Ave. S. and Alaskan Way. S. during the installation of new electrical duct banks.  One lane of eastbound traffic will be maintained at all times.  Work hours are 9AM to 3PM weekdays, with intermittent weekend work from 9AM to 6PM.
August 7
to
late-Nov. 2017
Seattle City Light Project -
1st Ave. & S. Jackson St. Duct Bank Project
As early as August 7, Seattle City Light crews will replace underground electrical conduits (duct banks) and then pull in new electrical cable at vaults along S. Jackson St.  Work will start approximately one-half block east of 1st Ave. S. and end at S. Jackson St's intersection with 1st Ave. S. The plan is to complete the work in three stages.  Project is expected to take approximately 3 months to complete.
Until Further Notice
24/7
255 S. King St.
(North Lot of CenturyLink Field)

23-story hotel tower (282 rooms) and an 18-story office tower  with retail and parking

Estimated completion: Q3-2017
Construct two towers connected by podium for hotel, office, convention center, parking garage and retail space.
Until Further Notice
24/7
450 Alaskan Way S.

8-story office building

Estimated completion: Q3 2017
Construct 8-story office building with ground floor retail.  Intermittent sidewalk, parking lane, and travel lane closures on  the north side of S. King St. between Alaskan Way S. and 1st Ave. S.
June 19 - 23
24/7
Crews will close westbound S. King St. between 1st Ave. S. and Alaskan Way S. during roadway restoration work.
June 28 - 30
4AM - 7PM
Crews will fully close S. King St. between 1st Ave. S. and Alaskan Way S. during the removal of a manlift.
Until Further Notice
24/7
589 Occidental Ave. S.
Gridiron Condominiums

11-story/107 units

Estimated completion: Summer 2017
Construct 11-story condominiums with ground floor retail.  Intermittent sidewalk, parking lane, and travel lane closures on  the north side of Railroad Way S. between 1st Ave. S. and Occidental Ave. S, and the west side of Occidental Ave. S, north of Railroad Way S.
West Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 21 9AM
to
October 22 5PM
SW Edmunds St. closed between 40th Ave. SW and Fauntleroy Way SW Crews will close SW Edmunds St. between 40th Ave. SW and Fauntleroy Way SW while repaving the roadway.
October 29
10AM - 2PM
West Seattle Harvest Festival Event will close California Ave. SW between SW Edmunds St. and SW Alaska St.  (West Seattle Farmers Market also closes the block to the north).
South Seattle Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 17
to
Fall 2018
24/7
Northbound lane closure on 4th Ave. S. Argo Bridge Crews will close the right northbound curb lane on the 4th Ave. S. Argo Bridge (from S. Dawson St. to just south of the Costco driveway) for nine to twelve months during bridge maintenance.
October 19
9PM - 5AM
Northbound I-5 off-ramp to ML King Jr. Way S. closed Crews will close the northbound I-5 off-ramp to ML King Jr. Way S. while repaving the roadway.  The right lane of NB I-5 between ML King Jr. Way S. and Swift Ave. will also be closed.
Oct 20 8PM
to
Oct 23 5AM
Lane closures on northbound I-5 at Interurban Ave. S. Northbound I-5 will be reduced to two lanes in the vicinity of Interurban Ave. S. during expansion joint replacement work.
August 17 2017
to
Winter 2018
4th Ave. S. Paving Project Project will repave 4th Ave. S. between S. Royal Brougham Way and S. Spokane St.  Construction is expected to take approximately 6 months to complete.
Sept 13
to
Late-October
24/7
Crews will close the east side of 4th Ave. S. between S. Spokane St. and S. Holgate St. while repaving the roadway.  Southbound and northbound traffic will be maintained on the west side of the roadway.  Works hours are 7AM - 6PM and 8PM - 6AM.
July 24
to
late 2017
24/7
Georgetown Arterial Paving Project Project will repave S Michigan St, along with several blocks of Corson Ave S, and a block of S Bailey St.  Construction is expected to take approximately 3 - 4 months to complete.  Crews will work weekdays 7 AM - 5 PM; however, to accommodate heavy daytime traffic volumes, work will also occur during some nights and/or weekends.
May 1
to
Fall 2017
24/7
Westbound S. Holgate St. closed between Airport Way S. and 8th Ave. S. Crews will close the westbound lanes of S. Holgate St. between Airport Way S. and 8th Ave. S. to replace an existing pedestrian stairway, and install a new sidewalk and ADA ramps.  Traffic will be detoured to S. Massachusetts St. or S. Stacy St.
South Lake Union Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
September 25
to
November 10
9AM - 3PM
Lane and sidewalk closures on westbound Denny Way between Stewart St. and Fairview Ave. N. Crews will close the curb lane and adjacent sidewalk on westbound Denny Way between Stewart St. and Fairview Ave. N. while replacing the curb and sidewalk.
October 16 - 30
7PM - 5AM
Mon - Fri
9th Ave N. closed nightly between Republican St. and Mercer St. Crews will close 9th Ave N. nightly between Republican St. and Mercer St. while installing an electrical duct bank.
October 21
7:30PM - 11PM
Depeche Mode concert At KeyArena.  Doors open at 6:30PM.
October 26 - 29 Seattle/King County Clinic At KeyArena.
October 28
3AM - 10PM
Lane closures on Dexter Ave. N. between Thomas St. and Harrison St. Dexter Ave. N. will be reduced to one lane in each direction between Thomas St. and Harrison St. during a tower crane erection.
October 28
to
November 30
9PM - 6AM
Westbound Denny Way closed nightly between Stewart St. and Minor Ave. N. Crews will close westbound Denny Way nightly between Stewart St. and Minor Ave. N. during underground utility work.  One eastbound lane will also be closed between Minor and Stewart.
May, 2016
to
late-2018
Denny Substation project Seattle City Light will construct a new electrical substation, its first and largest in 30 years, near the intersection of Denny Way and Stewart Street. An underground distribution network and transmission line will also be built to carry power to the substation and deliver it to customers.
April 4, 2016 Pontius Ave. N. permanently closed between Denny Way and John St.
Until further notice
24/7
Construction continues inside the substation work site. Work hours are 7AM to 7PM weekdays, and 9AM to 5PM Saturday.
February 29 2016
to
mid-2018
Denny Network project City Light's contractor, Shimmick Construction Company, Inc., began construction of the Denny Substation network on February 29, 2016. Work on the network will be completed in six stages. Each stage will begin with the installation of vaults, followed by the installation of a duct bank system that will connect the vaults. Street restoration will conclude each stage.  The project is expected to be complete by mid-2018.
October 2 - 29
24/7
6th Ave. reduced to two lanes between Lenora St. and Virginia St. for equipment staging.
October 16 - 30
6AM - 3PM
6th Ave. reduced to one lane at Virginia St. during duct bank and storm drain installation.  Virginia St. also reduced to two lanes at 6th Ave.
Oct 21 9AM
to
Oct 22 11:59PM
Eastbound Virginia St. reduced to one lane at Terry Ave. during roadway restoration work.  Westbound Virginia St. closed at Terry Ave. 
Oct 21 9AM
to
Oct 22 11:59PM
Eastbound Virginia St. reduced to one lane at 8th Ave. during roadway restoration work.  8th Ave. also reduced to one lane at Virginia St.
Until Further Notice SR 99 Tunnel Project Parking under the Alaskan Way Viaduct is permanently closed between S King St and Pike St.
Until Further Notice Alaskan Way S.  is closed between S Atlantic St and Madison St until further notice.  Two-way traffic has been re-routed under the Alaskan Way Viaduct and Railroad Way S via 1st Ave S.
Until the SR 99 Tunnel opens to traffic 6th Ave N is closed between Thomas St and Republican St.  Harrison St is closed between Aurora Ave N and Broad St.  Republican St is closed between Aurora Ave N and 6th Ave N.
Mid-January
to
Spring 2017
Seattle City Light Project -
Harrison St. Electrical Improvements Project
Seattle City Light is working to increase the reliability of the electrical system in the South Lake Union neighborhood by excavating for new electrical vaults and a conduit (duct bank). This work will be done in four stages.  PLEASE NOTE: Due to crew availability, this project is on hold until mid-October, 2017.
January 9
to
early-March 2017
Stage 1
Crews will be breaking street pavement on Harrison St. between Dexter Ave. N. and 8th Ave. N. to install the new electrical vault and conduit. During construction, Harrison St. will be closed to all westbound traffic from Dexter Ave. N. to 8th Ave. N, but open to all eastbound traffic.
early-March 2017
to
late-April 2017
Stage 2
Crews will be breaking street pavement on Harrison St. at 8th Ave. N. to install the new electrical vault and conduit. During construction, one lane of alternating traffic will be open at all times.
Late-July 2017
Stage 3
On Harrison St. between 8th Ave. N. and 9th Ave. N.  During work hours, Harrison St. will be closed and traffic detoured.
June 20, 2017
24/7
363 Mercer St.

Seattle Opera at the Center

Four-story
100,000 SF space
Intermittent use of sidewalk and adjacent curb lane on Mercer St. and 4th Ave. N.
Until Further Notice
24/7
630/609 Boren Ave. N.
Blocks 31/25

Twin 14-story Towers

Opening: Late 2018
Boren Ave. N. between Mercer St. and Valley St. closed for two years during construction of Blocks 31 and 25.
Until Further Notice
24/7
400 Dexter Ave. N.

11-story office building with ground floor commercial space

Opening: 2017
Intermittent sidewalk, curb lane, and traffic lane closures on the east side of Dexter Ave. N. between Republican St. and Harrison St, on the south side of Republican from Dexter Ave. N. east to the alley, and on the north side of Harrison St. from Dexter Ave. N. east to the alley.
Until Further Notice
24/7
222 Fairview Ave. N.

7-story apartment building with retail space

Opening: 2017
Intermittent sidewalk, curb lane, and traffic lane closures on the east side of Fairview Ave. N. between Thomas St. and John St., the north side of John St. east of Fairview Ave. N, and the south side of Thomas St. east of Fairview Ave. N.
Until Further Notice
24/7
221 Minor Ave. N.

7-story apartment building with retail space

Opening: 2017
Intermittent sidewalk, curb lane, and traffic lane closures on the west side of Minor Ave. N. between Thomas St. and John St., the north side of John St. west of Minor Ave. N, and the south side of Thomas St. west of Minor Ave. N.
Until Further Notice
24/7
300 Boren Ave. N. - Troy Block

Two office building with retail space and underground parking

Opening: 2017
Intermittent sidewalk, curb lane, and traffic lane closures on the streets bounded by project: Fairview Ave. N, Thomas St, Boren Ave. N, and Harrison St.
Until Further Notice
24/7
501 Fairview Ave. N. - Urban Union

12-story office and retail space, with parking for 375 vehicles

Opening: 2016
Intermittent sidewalk, curb lane, and traffic lane closures on  the west side of Fairview Ave. N. north of Republican St, and the north side of Republican St. west of Fairview Ave. N.
SR 99 Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
Until Further Notice SR 99 Tunnel Project Parking under the Alaskan Way Viaduct is permanently closed between S King St and Pike St.
Until Further Notice Alaskan Way S.  is closed between S Atlantic St and Madison St until further notice.  Two-way traffic has been re-routed under the Alaskan Way Viaduct and Railroad Way S via 1st Ave S.
Until the SR 99 Tunnel opens to traffic 6th Ave N is closed between Thomas St and Republican St.  Harrison St is closed between Aurora Ave N and Broad St.  Republican St is closed between Aurora Ave N and 6th Ave N.
I-5 / I-90 / SR520 Planned Construction / Events
Date(s) and Times Project Name / Agency Description of Traffic Impacts
October 19
9PM - 5AM
Northbound I-5 off-ramp to ML King Jr. Way S. closed Crews will close the northbound I-5 off-ramp to ML King Jr. Way S. while repaving the roadway.  The right lane of NB I-5 between ML King Jr. Way S. and Swift Ave. will also be closed.
Oct. 19  11:59PM
to
Oct. 20  5AM
Northbound I-5 lane and ramp closures in downtown Crews will close the left two lanes of northbound I-5 between the University St. on-ramp and the Mercer St. off-ramp while repaving the roadway.  Both ramps will also be closed.
Oct 20 8PM
to
Oct 23 5AM
Lane closures on northbound I-5 at Interurban Ave. S. Northbound I-5 will be reduced to two lanes in the vicinity of Interurban Ave. S. during expansion joint replacement work.
Oct 27 11:59PM
to
Oct 28 6AM
Lane and ramp closures on northbound I-5 in downtown Crews will close the three left lanes of northbound I-5 in downtown during repairs to a damaged impact attenuator.  The Seneca St. off-ramp will also be closed.
September 2015
to
Late 2017
SR520 West Approach Bridge North Project 24th Ave. E. overpass closed to pedestrians and bicyclists during project.

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