The construction traffic planning team analyzed impacts of highway and local road projects in 2012 and identified three hot spots and three watch list areas in the greater Puget Sound region. Hot spots are areas where several roadway construction projects occur in close proximity at the same time. Watch list areas also have several projects occurring, but do not necessitate the extra coordination required by a hot spot. We are tracking watch lists because they may require additional coordination as updated closure information becomes available. Early coordination in hot spots keeps traffic moving during construction and helps projects stay on time and within budget.
Interested in other construction outside the hot spots and watch lists? Check out the county data for major projects in King, Pierce, Skagit, Snohomish and Whatcom counties.
How to Read Maps and Schedules
Project data for each area is represented in two documents: maps and schedules. Each of these documents displays the project data in different ways.
Maps are visual tools used to show approximate project locations and anticipated impacts. The maps represent all projects for the entire year; not all projects shown on the map will occur at the same time. The numbers used to label projects on the maps correspond to the ID number in the schedule.
Schedules provide more detailed information about the anticipated impacts for each project. Basic project information (ID number, project title, start and end date, contact information, etc) is displayed on the left and detailed impact information is shown on the right.
Instructions for reading and interpreting maps and schedules are shown in the introduction to hot spot maps and Gantt charts .
Hot Spot Information*
Seattle (updated: 03/29/2012)
This area will see major changes in traffic patterns due to the SR 99 S Holgate to S King St - Stage 2 project. There are also many local jurisdiction projects such as the Mercer St projects and the Airport Way S Viaduct project that will cause significant impacts and potential delays.
Map (pdf, 784 kb) Schedule (pdf, 245 kb)
2nd Quarter Special Events (updated: 04/09/2012)
Map (pdf, 236 kb) Schedule (pdf, 70 kb)
3rd Quarter Special Events
Map (pdf, 237 kb ) Schedule (pdf, 67 kb)
4th Quarter Special Events
Map (pdf, 233 kb) Schedule (pdf, 59 kb)
North Lake Washington (updated: 03/29/2012)
Major construction is planned on both SR 520 and I-405 in 2012. These projects and their interaction with other projects in the area will greatly affect drivers heading to and from the eastside of Lake Washington.
Map (pdf, 623 kb) Schedule (pdf, 232 kb)
2nd Quarter Special Events (updated: 04/09/2012)
Map (pdf, 256 kb) Schedule (pdf, 70 kb)
3rd Quarter Special Events
Map (pdf, 252 kb) Schedule (pdf, 62 kb)
4th Quarter Special Events
Map (pdf, 261 kb) Schedule (pdf, 53 kb)
South King County/North Pierce County (updated: 03/29/2012)
Two different WSDOT regions, Northwest and Olympic, are responsible for construction projects in this hot spot. Establishing cross-regional coordination as soon as possible is extremely important.
Map (pdf, 607 kb) Schedule (pdf, 165 kb)
2nd Quarter Special Events (updated: 04/09/2012)
Map (pdf, 220 kb) Schedule (pdf, 52 kb)
3rd and 4th Quarter Special Events
Map (pdf, 220 kb) Schedule (pdf, 58 kb)
Watch List Information*
Kirkland - Redmond (updated: 03/29/2012)
There are several projects occurring on the roads just east of downtown Redmond in 2012. There is also a major project on I-405 that could affect local projects and traffic in the area.
Map (pdf, 131 kb) Schedule (pdf, 104 kb)
Snohomish - Monroe (updated: 03/29/2012)
In 2012 there will be construction on all of the routes that lead into the cities of Snohomish and Monroe from the west. These routes include SR 522, SR 9, US 2 and the SR 522/I-405 interchange.
Map (pdf, 314 kb) Schedule (pdf, 175 kb)
SR 167 Corridor (updated: 03/29/2012)
There are three major routes that go through the Kent Valley: SR 167, SR 181 and I-5. All of these routes have mild to severe construction closures in 2012.
Map (pdf, 220 kb) Schedule (pdf, 89 kb)
County Information*
King (updated: 04/05/2012)
Map (pdf, 186 kb) Schedule (pdf, 132 kb)
Kitsap (updated: 04/04/2012)
Map (pdf, 183 kb) Schedule (pdf, 82 kb)
Pierce (updated: 04/04/2012)
Map (pdf, 156 kb) Schedule (pdf, 118 kb)
Skagit (updated: 04/04/2012)
Map (pdf, 134 kb) Schedule (pdf, 71 kb)
Snohomish (updated: 04/04/2012)
Map (pdf, 166 kb) Schedule (pdf, 142 kb)
Island (updated: 04/05/2012)
Map (pdf, 122 kb) Schedule (pdf, 63 kb)
Thurston (updated: 03/29/2012)
Map (pdf, 128 kb) Schedule (pdf, 74 kb)
Whatcom (updated: 04/04/2012)
Map (pdf, 95 kb) Schedule (pdf, 86 kb)
*Please note:
- Information on the maps and schedules is useful for planning purposes, but is subject to change without notice due to the fluid nature of construction schedules. Closure information tends to become more accurate as the closure date approaches. For more information about construction closures occurring in the next week, check out our Construction Update page.
- Maps and schedules focus on highway and arterial construction and do not list every construction project in every neighborhood
- Maps and schedules include information from multiple public agencies for coordination and planning purposes; each agency retains responsibility for their own construction and related traffic closures.
- For more detailed information about construction in Seattle, check out the Seattle Department of Transportation's construction closures page.
- Maps and schedules are numbered as a single set for each area, but are divided into separate pdfs for ease of use.
- Maps are designed for printing on 11'' by 17'' paper.
- Schedules are designed for printing landscape on 11" by 17" paper.