Thursday, June 22, 2017

I-405 peak-use shoulder lane is off to a positive start

By Victoria Miller

If you commute on northbound Interstate 405 between State Route 527 and I-5 in the afternoon, then you have most likely noticed or used the new peak-use shoulder lane. In late April, we used money collected from the I-405 express toll lanes to convert the existing shoulder to an additional travel lane during the afternoon commute, adding extra capacity to this congested stretch of roadway when it is most needed.

So far, we have succeeded in moving more vehicles through this area and decreasing travel times. It has been almost two months since the lane opened, so let’s explore the specific accomplishments of the project based on our first full month of performance data.

How many more vehicles are getting through?
Every weekday since opening, the peak-use shoulder lane has typically been open to traffic between 2 and 7 p.m. In the two months before the project was complete, an average of about 4,700 vehicles per hour were traveling on I-405 across all lanes just north of SR 527 between 4 and 5 p.m., the busiest time of the afternoon commute for that area.

With the addition of the shoulder lane, on average, more than 5,200 vehicles per hour are now traveling through this same section of the freeway at that time. More than 750 of those vehicles chose to use the peak-use shoulder lane. As a result, we are seeing less congestion in both the general purpose lanes and the express toll lanes, also resulting in lower average toll rates for an even more reliable trip in the express toll lanes during this time.

How much time are people saving on their commutes?
Between Bellevue and I-5:
In the two months before the peak-use shoulder lane opened, drivers commuting at the busiest times on the corridor were spending an average of about 38 minutes in traffic in the general purpose lanes. Thanks to the peak-use shoulder lane, drivers commuting at the same time in the general purpose lanes are saving on average between 10 and 15 minutes for this 17-mile trip.

Between SR 522 and I-5:
Commuters in the general purpose lanes were spending an average of about 20 minutes to drive about 7 miles. Thanks to the peak-use shoulder lane, the travel time for this trip has decreased by about half on average.

Is traffic flowing more smoothly?
For an example of how traffic has changed since the peak-use shoulder lane opened, check out the two flow maps below. These diagrams represent only a snapshot in time for the area between SR 522 and I-5, and we recognize that conditions can change daily, but these images help give a sense for how traffic has improved.

Thursday, June 15, 2017

Five consecutive weekends of lane closures to #ReviveI5

by Tom Pearce

Friday, June 16, marks the start of five consecutive weekends of pavement improvement work on northbound I-5 between SR 516 in SeaTac and the Southcenter area.

As we continue to #ReviveI5, our contractor crews will reduce northbound I-5 to two lanes during the following weekends:
  • June 16-19
  • June 23-26
  • June 30-July 3
  • July 7-10
  • July 14-17 

Expect major backups
Drivers should prepare for lengthy delays during each weekend. During the first weekend of work in June, we saw backups reach six miles at one point. Your best chance to avoid major delays is to plan ahead:
There are several alternate routes to use instead of northbound I-5.
Viva la differencé
This weekend we’ll do crack, seat and overlay work on the left lanes, with two lanes open on the right. We’ll also remove more than 300 feet of concrete panels at four separate locations and replace them with asphalt. Working on the right lanes means the on- and off-ramps at South 188th Street will be open. The SR 516 on-ramps and the South 200th Street on- and off-ramps to I-5 will be closed.

Crews need to remove sections of concrete panels the length of a football field, then replace them with asphalt, to create smooth transitions between the concrete and asphalt.
Making changes
We appreciate the feedback many of you shared with us after our first weekend of work. We received concerns about the lack of signs on some alternate routes, particularly near the South 200th Street/Military Road on- and off-ramps. We put out more signs during the first weekend, and we’ll have better signage throughout the rest of our work this summer.

Why weekends?
We hear that question every time we do a major project that disrupts the weekend. Our contractor crews are doing most of the work during overnight lane closures throughout the week.

It takes a couple of days to break the old concrete, compact it and repave asphalt over the top of it.

However, some of the work simply takes too long to do during overnight lane closures. Crack, seat and overlay work is a three-step process. An overnight shift doesn’t provide enough time to complete the needed steps.

It will be the same later this year and in the first half of 2018 when we replace expansion joints at Interurban Avenue and the Duwamish River – we need more than 50 straight hours to do that work.

We understand all of these lane closures are inconvenient. However, I-5 is the main artery of our region and we need to preserve it. We are confident that a little short-term pain will provide decades of smoother travel. Hang in there! We appreciate your patience!

Friday, June 2, 2017

Help researchers train computers to recognize road users, prevent collisions

by Ann Briggs

What if we could use technology to predict where vehicle collisions involving people who walk or bike will occur, then take steps to prevent them? Would you want to help? Well, now you can.

Volunteers are needed to help train computers to recognize objects and flag “near misses” at intersections. An example of a near-miss is when a driver nearly hits someone in a crosswalk.

Here’s how it works: your task is to view a short clip of a pre-recorded traffic scene, then label and track the movement of each person or vehicle within the screen. By doing so, the computer can begin to distinguish a person walking, biking, or using a wheelchair; a bus or car; then recognize patterns to identify near misses. Using the data from the video analytics, engineers could then take corrective actions to prevent future crashes.
Technology like heat mapping has the potential to help us improve road safety.

Fair warning to potential volunteers – until you get accustomed to using the labeling tools, it may take you several minutes to complete the task – plan on at least five minutes or longer per task at the start. Once you master the image tracking tools, your speed will likely increase. You can submit just one task, or complete as many as you’d like.

This work is part of a multi-city, multi-organizational partnership called Video Analytics Toward Vision Zero, a strategy to eliminate all traffic fatalities and serious injuries while increasing safety for all users of the roadway.
We need the public’s help to use our crowd-sourcing tool to analyze video and teach computers how to tell the difference between cars, buses, bikes and pedestrians.

Vehicle crashes involving pedestrians and bicyclists are on the rise in Washington state, as well as in other states. Fatal collisions involving bicyclists and pedestrians in Washington increased 6 percent from 100 in 2015 to 106 in 2016.

Why not give it a try? With your help, researchers can create a database that one day may save a life and make our roadways safer for everyone.

Thursday, June 1, 2017

Big changes come Monday, June 5 for I-90 drivers across Lake Washington

By Annie Johnson

If you travel I-90 between Seattle and Bellevue you're hopefully aware of our joint project with Sound Transit to add new HOV lanes to I-90 which will enable Sound Transit to build their East Link light rail extension across I-90 to Redmond. It's been a long process that started back in 2006 when we built a new westbound HOV lane between Bellevue Way and 80th Avenue SE on Mercer Island. In 2012 we opened the new HOV lane in the eastbound direction between Mercer Island and Bellevue.

Over the past 2.5 years we've been working on the final stretch of new HOV lanes between Mercer Island and Seattle. A lot of that work has been taking place off the roadway and mostly out of view of drivers but it will all come into view this weekend when we open the new HOV lanes and permanently close the express lanes.
A before and after look at I-90 across Lake Washington. Cones are in place in the new westbound
HOV lane. HOV lanes will open in both directions on Sunday, June 4.

What's the plan this weekend?
At 9 p.m. Friday, June 2, all eastbound I-90 traffic will be reduced to one lane. For most of the night eastbound traffic will remain in the express lanes while crews do one last night of testing systems in the tunnels, unveiling signs, and lane striping on the eastbound I-90 mainline. Early Saturday morning crews will switch the express lanes to the westbound direction one final time. Eastbound I-90 will remain reduced to one lane near Rainier Avenue while crews restripe the area near the eastbound entrance to the express lanes. This is an area crews can't reach when the express lanes are open eastbound so we'll be out there bright and early to do this striping before fully opening the eastbound roadway and the new HOV lane by 9 a.m. Saturday.

From 9 p.m. Saturday until 9 a.m. Sunday, westbound traffic will be reduced to one lane as we repeat Friday night's work but in the opposite direction. If you want to take one last drive in the I-90 express lanes for sentimental reasons I'd suggest doing so by 4 a.m. on Sunday. Around that time crews will begin to shift traffic back to the westbound mainline and permanently close the express lanes to vehicle traffic. However, westbound I-90 will remain reduced to one lane west of the Mount Baker Tunnel as crews restripe the area near the westbound exit from the express lanes. We expect to finish the work and reopen the westbound mainline by 9 a.m. Sunday.
Left: Crews have been working on re-striping I-90 across Lake Washington to put new HOV lanes in both directions in place before the express lanes are handed over to Sound Transit. Right: New signs will be unveiled this weekend as part of our project to introduce new HOV lanes on I-90 across Lake Washington while closing the express lanes for good.

What can I expect Monday morning?
How exactly these changes will impact your commute depends on a number of things including the time of day you travel and where you're going. You can find detailed information about the changes in an earlier blog. No matter what, you should definitely expect a period of adjustment. This is a big change for everyone that uses I-90 across Lake Washington. It could take months for traffic to settle into its new routine.

As we normally do, we'll be keeping an eye on things and doing our best to keep you informed of what's happening out there. Before you hit the road, take a minute to look at your commute with our WSDOT traffic app or check out the WSDOT traffic Twitter feed.
Upgrading systems in the I-90 tunnels has been a major component of our Two-Way Transit and HOV project.

What happens after this weekend?
Over the next few weeks our contractor crews will continue working to hand over the I-90 express lanes to Sound Transit as they gear up for light rail construction on I-90. Our work includes removing the existing overhead signs for the express lanes and placing barrier to permanently close the express lanes to traffic. There's always work to finish up even after a project opens to traffic so expect nighttime lane and ramp closures this summer. You can always find the latest information about I-90 lane and ramp closures in King County on our I-90 and SR 520 construction closures website.

Sound Transit's work on the bridge will begin with surveying, concrete work to prepare for future post-tensioning work at the East approach to the bridge, and relocating existing electrical equipment inside the bridge pontoons. For updates on Sound Transit's progress on this and other projects, visit The Platform blog.

Wednesday, May 31, 2017

Plan ahead during our busy weekend of work on I-5 and I-90

By Tom Pearce

Ah, summer in Seattle. Mariners games.  Sounders matches. Getting away to the beach, the mountains or a park. All kinds of events around the region. And of course, road construction.

Sorry to slam on the brakes and interrupt those pleasant summer thoughts, but if you want to spend more time having fun and less time in traffic, heads up. We have three big projects this weekend, starting Friday night, June 2:
  • Testing in the I-90 tunnels in Mercer Island and Seattle.
  • Repaving on northbound I-5 from SR 516 to South 188th Street in SeaTac.
  • Repairs on the southbound I-5 Ship Canal Bridge in Seattle.
All this work coincides with a Mariners homestand throughout the weekend, The Susan B. Komen Race for the Cure Sunday morning and a Sunday night Sounders match at CenturyLink Field.

You can get to any of these events – all of them, if you're really ambitious – with a little bit of planning around our road work.

I-90 between Seattle and Bellevue
You've heard this one before. We are reducing I-90 to one lane and detouring traffic to the express lanes across Lake Washington overnight. This will allow crews to test the tunnel operations systems, uncover new signs and install final striping for the new HOV lanes. That means:
  • From 9 p.m. Friday until 9 a.m. Saturday, eastbound I-90 will reduce to a single lane at Rainier Avenue then traffic will be routed to the express lanes.
  • From 9 p.m. Saturday until 9 a.m. Sunday, westbound I-90 will reduce to a single lane at Bellevue Way then traffic will be routed to the express lanes.
On Sunday, permanent HOV lanes on I-90 across the lake will be in place, providing a more reliable trip between Issaquah and Seattle that doesn't depend on the direction of the express lanes.  With the HOV lanes open, the I-90 express lanes will close for good so Sound Transit can build its East Link light rail extension between Seattle and Redmond.

Biggest effects
If you're heading back to the Eastside after the Mariners game or another event in Seattle Friday night, plan ahead as we'll see congestion leaving the city. Taking transit or carpooling will help reduce regional congestion. Consider taking SR 520 or driving around the lake if possible, but expect congestion there too.

Sunday morning if you're heading to Seattle to Race for the Cure or anything else before 9 a.m., leave early or use alternate routes.
Our contractor crews will pave asphalt over the old concrete between SR 516 and the Southcenter area.

Northbound I-5 repaving in SeaTac
This is the first of six weekends when our contractor crews will close lanes to repave lanes between SR 516 and South 170th Street:
  • From 8 p.m. Friday to 5 a.m. Monday, northbound I-5 will be down to two lanes at SR 516.
  • The SR 516 on-ramp to northbound I-5, the off- and on-ramps at Military Road and South 188th Street/Orillia Road will also be closed.
Think alternatives
We see backups anytime we reduce lanes of a major highway. Similar work last year on southbound I-5 in South King County produced 20- to 40-minute delays. Some ideas that may help:
  • Take transit – a bus or light rail allows you to relax and reduces the number of cars on the road.
  • Use alternative routes – SR 99, SR 509, SR 167 and I-405 can take you around the I-5 backups.
  • Avoid using I-5 late morning through the early evening. Going earlier or later can help you dodge the heaviest congestion.
Southbound I-5 Ship Canal Bridge
The deck has some small bad patches of concrete that we need to jackhammer out and repave. We'll start closing lanes at 2 a.m. early Saturday and Sunday mornings and start the noisiest work at 5 a.m. each day. On Saturday we'll work on the two right lanes and close the Northeast 45th Street on-ramp to southbound I-5. On Sunday we'll repair the two left lanes, and all ramps will remain open.

Plan ahead
The most important thing is, if you're traveling across the southbound Ship Canal Bridge Saturday or Sunday morning and you have to be somewhere on schedule, give yourself a cushion and leave early.

This really matters Sunday morning because our crews will still be at work when you're going to Race for the Cure. The Mariners' first pitch Sunday is at 1:10 p.m. and while our crews will be off the road by 10 a.m., the backups will linger. You can also try SR 99. Whatever you do, plan ahead.

We know we've planned a lot of work this weekend considering all the other events that are scheduled. But we have so many projects that need weekend hours, we have to work when we can. The only weekends that are off-limits this summer are June 10-11 for the University of Washington's graduation ceremonies and Aug. 5-6 for the Seafair boat races and Blue Angels. There may be work on every other weekend this summer as it's the only way we can finish this important work and keep traffic moving. Much of this work needs dry weather to be completed. We know it's not easy to get around with these closures, and we appreciate your patience.

Tuesday, May 30, 2017

Doug Baldwin talks train safety to South Sound residents

By Barbara LaBoe

Doug Baldwin spends many Sundays thinking about hard-hitting safeties, but he had a different kind of safety on his mind this past Sunday – train tracks.

Baldwin, along with some Sea Gals, helped us spread our train safety message to more than 300 children and adults from the South Sound region. The Seahawks' Pro Bowl wide receiver and Super Bowl XLVIII champion met personally with some lucky contest winners and also engaged the crowd as a whole on how to be safer around trains.
Seahawks star Doug Baldwin helped us spread the message about railroad safety at an event earlier this month in Lakewood.

The event is a part of the larger Stay Back from the Tracks safety campaign that we, the Seahawks and Operation Lifesaver designed to get area residents ready before passenger trains are rerouted through Tacoma, Lakewood, JBLM, and DuPont in the fall.

The Point Defiance Bypass tracks that run along I-5 between DuPont and Tacoma currently have just intermittent freight traffic. Starting this fall, though, residents will see 14 passenger trains every day traveling at up to 79 mph. It's crucial that residents know to what to expect and what to do to keep themselves safe, including:
  • Never walk on train tracks. They're private property and it's just not safe to be on them.
  • Don't assume a train can stop to avoid someone on the tracks – it takes more than a mile before a heavy train can stop – that's more than 18 football fields.
  • Never cross a train/road intersection if the gates are down or lights are flashing. Trains can travel in either direction, so just because one has passed doesn't mean another isn't coming from the other way.
Baldwin's message Sunday was simple: Everyone needs to be safe around train tracks.
People gathered around Doug Baldwin of the Seahawks to hear his message of being safe
and aware around railroad tracks at our safety event in Lakewood on May 28.

He reminded participants about the risks around train tracks and then "played" an interactive train safety video game with the crowd. The game has several built-in safety messages, including to never cut across tracks as a short cut and to always obey signals and lights.

While Baldwin was the star attraction, children and families also enjoyed several other train-related activities. The Lego station was a popular stop for many participants and included take home kits to build their very own Amtrak Cascades locomotive. Participants also were able to pose with a life-size banner of our new diesel-electric locomotives that will start running this summer. For those kids hankering for a train ride, a mini train operated in the parking lot.
A large Lego setup showing two working trains and structures from around the Puget Sound
area was a big hit at our railroad safety event May 28 in Lakewood.

In addition to Sunday's event, our partners at the non-profit Operation Lifesaver organization have made more than 75 presentations at area schools this year. Partnering with the Seahawks ups our train safety game by spreading the message even further.

We're excited about the new expanded Amtrak Cascades service starting this fall. It will add two daily round trips between Seattle and Portland (for a total of six), cut travel time and improve on-time reliability. But our first priority is always safety, so please follow Baldwin's advice and remember to always Stay Back from the Tracks.

Friday, May 26, 2017

For every tree removed, many new trees replanted

By Victoria Miller
Before any tree is removed as part of a project, we do an
inspection to preserve as many of the existing trees as possible.

We love our green, tree-lined scenery and the Interstate 405 corridor is no exception. However, sometimes our construction projects require us to remove vegetation to make room for new roadway features that will ultimately help travelers and nearby residents. We’d like to let you know about some recent activities on I-405 that require tree removal, and what we’re doing to balance this work.

Starting this spring, construction crews will remove trees in two locations near I-405.

The first location is on our property on the east side of northbound I-405 in Bothell between State Route 527 and I-5. The second is on our property on the southeast side of the northbound SR 167 ramp to northbound I-405 in Renton.

What to expect in Bothell

If you drive on northbound I-405 in Bothell between SR 527 and I-5 during the afternoon commute, you have probably noticed and possibly used our new peak-use shoulder lane, designed to help keep traffic moving more smoothly in this congested area. Another part of this project is building a quarter-mile long noise wall for nearby neighbors.

To make space to build this wall, we needed to remove selected trees on our property east of northbound I-405 between 202nd Street Southeast and Richmond Road. That work started this spring and is scheduled to wrap up by the end of next week depending on weather.

What to expect in Renton

In Renton, we are well under way with our I-405/SR 167 Direct Connector project, which builds a new flyover ramp connecting the I-405 carpool lane to the SR 167 high occupancy toll lane. To make space to build that new structure, we need to move the existing noise wall in this area farther east. As a result, we need to remove selected trees in the Talbot Hill area to make room for the relocated wall and the new road improvements. We expect to start that work in early June.
Some trees need to be removed for a noise wall project on I-405 in Renton but we replace any
trees that we take down as part of a project.

How we keep our roadsides green

We understand that seeing trees come down can be upsetting, and we don’t take this task lightly. We are well aware of both the habitat and aesthetic value that roadside vegetation brings to the traveling public.

Before any tree removal occurs, our environmental specialists walk the project area to complete a strict review process. We work to preserve as many trees as possible, especially older ones. We collaborate with our contractor to make an effort to preserve more trees than the initial amount proposed in their project design. To ensure proper tree management, our contractor identifies and reconfirms all trees they plan to remove before work begins.

Most importantly, for every tree removed, we replant many new trees in the project area.

Our policy requires us to calculate the number of trees to replant based on the diameters of the existing trees’ trunks. For example, we replace trees with trunks greater than four inches in diameter with multiple trees. For smaller trees with trunks less than four inches across, we replant one tree for each tree we remove. We have this policy in place to enhance the state’s quality of life by building transportation investments that promote energy conservation and protect the environment.

We make sure that crews remove only the trees necessary to complete work within the project area. Sometimes we get requests from homeowners to remove additional trees for other reasons, such as to improve their views. We only remove trees and vegetation if necessary for the scope of a project, or if they could pose hazards to drivers or nearby residents.

So if you’re driving along I-405 in the next few months and notice less vegetation in either of these two locations, you can count on us to add far more trees in the project area.

Thursday, May 25, 2017

Join us for the Chimacum Community Celebration, June 22!

By Nicola Zanchi

Help us welcome our third Olympic Class vessel, Chimacum, to our ferries fleet by joining us on Thursday, June 22 in Bremerton for a community celebration! This event is free and open to the public.

At the event you’ll get a chance to tour the vessel, hear some live music, there will be activities for kids as well as refreshments to enjoy.

About Chimacum
Chimacum is the third of four Olympic Class ferries that are replacing some of our oldest vessels. Tokitae debuted in 2014 and Samish joined us in 2016. Suquamish is under construction at Vigor’s Harbor Island Shipyard. These vessels carry 144 vehicles and have a variety of improvements over our older vessels, including wider car deck lanes, improved access and safety, increased passenger comfort and a reduction in environmental impact and operating costs.

Getting to the event
We encourage attendees to take public transportation to the event.
  • From Kitsap County: Bus Routes to Bremerton Ferry Terminal include: 11, 20, 21, 22, 24, 25 & 26.
  • From Seattle: The Seattle/Bremerton sailing schedule is available online.

There will be no public event parking at the terminal. There are several parking lots within 3½ blocks of the terminal. For more information, visit the City of Bremerton parking web page.


We are committed to providing equal access to its facilities, programs and services for persons with disabilities.

For more details on access to the Bremerton Transit Center for disabled passengers please check this Disabled Pick-Up/Drop-off Map.

To request disability accommodations for this event, email the ADA Office at least 10 days in advance at or call toll free 855-362-4ADA(232). Persons who are deaf or hard of hearing may make a request by calling the Washington State Relay at 711.

For more information on the Chimacum Community Celebration, please contact us at

Wednesday, May 24, 2017

Improvements underway for I-5 exit, crossing in DuPont

By Barbara LaBoe

Drivers at I-5's exit 119 near DuPont and Steilacoom are seeing more green and less red these days.

Changes to the crossing signals and lights led to longer than expected delays when they first went live a couple of weeks ago. Due to unanticipated growth in the area, traffic volumes at this interchange grew much faster than originally predicted in 2012 – we're already at levels not predicted until 2030. As a result, backups were longer than expected and drivers sometimes had to wait through several signals to make it through the intersection. We know this was frustrating and began looking at all possible solutions or remedies.
Revisions to the signal timing on exit 119 off of I-5 near DuPont should
help traffic flow more smoothly through the intersection.

The change in signal timing was part of the larger Point Defiance Bypass rail project, which will reroute passenger train traffic through the area starting this fall. Shortly after the new signals went live, though, it was clear the change was causing frustration. We adjusted the signals to display a green turn arrow more often to help ease congestion and wait times, but knew more work was needed.
An additional signal box like this one will help timing and traffic at exit 119 off of I-5 in DuPont.

Last week we added a second controller at the Barksdale/Wilmington/DuPont-Steilacoom intersection. The controller is what directs the signals, including which color light to display and for how long. A second controller means vehicles are moving through the intersection faster and drivers are seeing longer periods of "green" lights, especially for those vehicles traveling south on DuPont-Steilacoom Road approaching Barksdale.

We're seeing shorter lines and fewer backups in the area, which is good news for everyone using the intersection.

In addition, we're working on traffic/railroad signage revisions to better guide motorists through the intersection and rail crossing. We're also going to restripe the area to better define where vehicles should stop for the crossing.
Adjustments to signal timing at exit 119 off of I-5 near DuPont was meant to help
safety near railroad tracks but led to some significant congestion.

Long-term, we've committed to working with DuPont city leaders on an overall transportation plan for the city as the area continues to grow.

The lights still may require some adjustment for residents, but we hope the alterations we implemented have made that change easier. Safety was the top priority when we met with community leaders about this project starting in 2010, and these changes are designed to address those safety concerns by reducing the chance of collisions.

Monday, May 22, 2017

Weekend-long lane reductions scheduled for northbound I-5 in SeaTac, Tukwila

By Tom Pearce

Our work to #ReviveI5 in South King County is about to ramp up! Since mid-April, crews on northbound I-5 between Kent and Tukwila have been replacing broken concrete panels, grinding the concrete to eliminate ruts, repairing concrete and much more - all while many of us are sleeping.

But some work requires more time than an overnight window can provide. Starting Friday, June 2, we'll begin the first of the project's 10 weekend-long lane reductions. We have eight weekends planned for 2017 and two in 2018. If the weather holds up, here's the six we've schedule so far:
  • June 2-5, 16-19, 23-26
  • June 30-July 3
  • July 7-10, 14-17

The cracker slowly rolls down southbound I-5, breaking the 50-year-old concrete panels.

During the six weekends already scheduled, our contractor will do crack-and-seat paving between State Route 516 in SeaTac and South 170th Street in Tukwila. For each of these weekends:
  • Crews will start reducing lanes at 8 p.m. Friday
  • By 10 p.m. Friday, northbound I-5 will be down to two lanes.
  • Between 11 p.m. and 4 a.m. on Friday and Sunday nights, northbound I-5 may be reduced to one lane.
  • By 5 a.m. Monday all lanes will reopen.
Why limit lanes on the weekend?
The simple answer is, there are some things we can't finish during an overnight lane closure. When we do crack-and-seat work, we have to remove a football-field length of concrete panels across two or three lanes at each end of the work zone and replace them with asphalt. You can't dig up that much concrete, then repave with asphalt in a single night.
During southbound work in 2016, crews use a roller to smooth out a section where new asphalt will be paved.

Besides replacing the concrete with asphalt, we have to use a cracking machine with a 12,000-pound blade to break a couple of miles of concrete. Crews then need to compress the pavement with a 35,000-pound roller. Next, we have to put asphalt over the top of that. We did this last year on southbound I-5 in the same area and it took all weekend to finish.

We're still scheduling the last two weekends in 2017. Those will probably be in late summer or fall, when we'll replace four expansion joints on the Duwamish River Bridge.

In the first half of 2018 we'll have two more weekends with northbound I-5 reduced to two lanes as we replace expansion joints on the Interurban Avenue overpass.
It takes a weekend to chip out old expansion joints, place new ones and pour the concrete.

We understand the inconvenience of all this work, but I-5 is more than 50 years old. If we want it to continue serving our families and businesses another 50 years, it needs major preservation work. The weekend-long lane closures allow us to complete parts of the project that need more time.

You can stay updated on work and traffic by checking our construction update page, following our Twitter account, checking our traffic map and downloading our mobile app.

Thanks for your patience!

Friday, May 19, 2017

Holiday travel charts a mix of facts, figures and common sense

by Barbara LaBoe

We know our holiday travel charts are popular – we get requests for them well before most holidays and drivers were disappointed last year when we were unable to produce Fourth of July forecasts.

Our Memorial Day Weekend charts are now out, but how do we make each year’s forecast? Good question.

Start with data, mix in analysis and common sense
The quick answer is a healthy mix of facts and figures with a dash of common sense. Staff in our Travel Data and Analysis office start out with historical traffic data from our roadway traffic sensors, then add in some analysis to improve the forecast.
We know holidays like Memorial Day have heavy traffic, but analysis and common
sense goes into predicting when the heaviest travel times will be.

An example? Last year there was a sudden mid-day dip in congestion on I-90 on the Saturday of Memorial Day weekend. That didn’t look right to our traffic engineers when they pulled up the numbers this spring, so they did some sleuthing. Turns out there was a large crash which temporarily stopped all traffic. Fewer vehicles moved past our sensors – but only because they couldn’t move, not because there were fewer drivers on the road. Using data from other years, we adjusted the charts to predict the steady congestion we expect to see this year. Without that adjustment, the straight numbers could lead people to think that several hours midday on Saturday will have relatively low congestion, when we expect exactly the opposite to take place.
We know holidays like Memorial Day have heavy traffic, but analysis and common
sense goes into predicting when the heaviest travel times will be.

Once the data is collected and analyzed, staff from our graphics and web teams format the charts so they’re ready to share with the public. We try to release the charts a week before major holidays to give people plenty of time to make plans.

How should I use the charts?
The charts are forecasts of the entire corridor – not an exact spot or milepost. They’re also tools to help in planning, not promises or guarantees. A crash or sudden, bad weather, for example, can change conditions and forecasts rapidly, so be sure you’re always prepared with supplies and check traffic conditions before heading out.

People returning to the west side on Memorial Day should travel
 before 9 a.m. or after 9 p.m. to avoid heaviest congestion.
Our traffic engineers suggest looking at the overall trend the charts show and then plan accordingly. The number of vehicles isn’t as important as the overall arch showing heavy congestion times. Is late afternoon and evening looking congested? Consider leaving earlier in the day or postponing travel until late evening or the next morning. If you have to travel during a peak time, recognize there will be lots of traffic and give yourself plenty of extra travel time so you’re not rushing or distracted by watching the clock.

Historically, our forecasts are pretty spot on. But ideally, our analysts hope that by sharing the predictions they’ll actually be proven “wrong.” If enough people adjust plans and travel during non-peak times, they say, it helps everyone travel more smoothly.

Are charts from previous years interchangeable?
We’re often asked why we can’t use last year’s charts for the current year. This is where the human factor and experience play a role. If the Fourth of July is on a Saturday, for example, we might see most people travel on late Thursday/early Friday and Sunday. If the holiday is on a Sunday, though, Friday night/Saturday morning and Monday afternoon become the most popular travel days. Those are things our engineers factor into their predictions.

A fair amount of traffic heads to Canada on the Saturday of
Memorial Day Weekend but traveling early or late will help.
Why don’t you have Seattle travel charts?
We get this question a lot. The answer is that Seattle is large enough that it doesn’t act like a typical traffic corridor because it has too many different ways to get around. Going north/south, for example, you can use I-5, I-405, SR 99 or a variety of city streets. That makes it hard to predict with good accuracy.

Our charts focus on the corridors where we see the most congestion without nearby alternative routes: I-5 from Olympia to Tacoma; I-90 over Snoqualmie Pass; US 2 between Stevens Pass and Leavenworth and I-5 near the Canadian border. In these cases, those routes are essentially the only viable options.

Why can’t you make the charts for every weekend, or my morning commute?
We’re happy the charts are useful enough for people to want them on a regular basis, but it takes a significant amount of time to do the analysis for each holiday – especially researching anomalies – and we don’t have the resources to do that on a regular basis.

Heading back from a trip to Eastern Washington on Memorial Day?
The roughest US 2 traffic will be from 10 a.m. to about 1 p.m.
If you want to do some comparison yourself you can get an idea of area traffic volumes using our Map Archives page, which lets you search by area, date and time of day. It won’t have analysis or as much historical data, but it can give you an idea of typical traffic at a given time.

What about Fourth of July this year?
Normally, we don’t create charts for holidays that fall midweek, including this year’s Fourth, which falls on a Tuesday. There are many more variables about when or if people choose to travel on those holidays. Last year, a glitch in our system prevented us from producing Fourth of July charts, which disappointed many.

So, would Fourth of July charts be helpful this year – with the caveat that the dates people may travel may not be as clear? Or should we stick to charts only on three- or four-day weekends? Leave your comments on this blog or email to: and we’ll use them as we make our decision.

Wednesday, May 17, 2017

Traffic change coming soon to southbound I-405 near SR 167 interchange

By Victoria Miller

Heads up, southbound Interstate 405 travelers near downtown Renton: Your driving experience will be a little different starting next week, especially if you rely on the ramp to southbound State Route 167.

As early as Saturday, May 20, we'll be making a long-term change to the way drivers access the off-ramps from southbound I-405 to Rainier Avenue South (Exit 2B) and southbound SR 167 (Exit 2A).

Right now, these two streams of traffic are separated by a barrier and travel in two parallel ramps. The far right lane takes travelers to Rainier Avenue South, and the second lane from the right takes travelers to southbound SR 167.
Drivers in Renton will find a new configuration off the off-ramp from
I-405 to Rainier Avenue South and SR 167 as early as this weekend.

Heading to southbound SR 167? Keep right
Under our new configuration, we'll combine those two exit lanes into a single lane. That means if you're traveling from southbound I-405 to southbound SR 167, you'll need to make sure you follow the new signs and get in the far right lane.

But rest assured, you'll still be able to get to both exits, as the lane will allow exits to both destinations. The barrier separating the two exit lanes will include an opening for those who wish to take Exit 2A.
The new lane configuration on the I-405 exit in Renton means drivers who want to
access Rainier Avenue South should stay right, and go left to get to SR 167.

Will this change affect traffic?
After we built an off-ramp to Talbot Road South several years ago, the volume of traffic using the Rainier Avenue South ramp dropped to around 200 to 300 vehicles per hour. We don't expect major backups as a result of this change, but there may be some minor slowdowns in the area as drivers adjust to the new configuration.

Why is this change happening?
Combining these two ramps while still allowing access to both exits will help crews move forward with the I-405/SR 167 Interchange Direct Connector project, which started construction last fall. We're in the process of building a new flyover ramp connecting the I-405 carpool lanes to the SR 167 high-occupancy toll lanes. Once open, the new flyover ramp will provide HOV drivers and transit a new option for traveling between I-405 and SR 167 while taking some pressure off the general-purpose ramps. We expect to open the flyover ramp to traffic in 2019.

You have probably already noticed that traffic has shifted lanes on northbound I-405 in the same area. This second traffic shift is to create a work zone to prepare for building the new flyover ramp in the center of I-405.

How long will this traffic shift be in place?
This change will be in place for at least several months as crews continue construction work for the Direct Connector.

This work is weather dependent so for the latest construction closure information, please visit our I-405 Construction Updates page and our King County Construction Updates page.

Monday, May 15, 2017

Ch-ch-ch-changes: Facing change on I-90 with new HOV lanes opening next month

By Annie Johnson

If you drive on I-90 between Seattle and Bellevue, you’ve probably noticed some pretty apparent changes to how the roadway looks over the past few weeks, including a big shift of the three existing lanes to the right side of the roadway. This shift is making way for the extension of the HOV lane from Mercer Island across the floating bridge to Seattle.

The new HOV lane will open the weekend of June 3. At the same time, the I-90 express lanes will permanently close to allow construction of Sound Transit's East Link light rail extension from Seattle to Redmond.

While our contractor is working hard to get ready to make this happen, it’s also time for you to start thinking about what these changes mean for your I-90 drive.

What to look for

Over the next few weeks, you can expect to see more work in the corridor as crews make the final preparations for the new HOV lanes and the closing of the I-90 express lanes. There’s approximately 14 miles of striping between I-5 and Bellevue Way that needs to be done before we can open the lanes, as well as the final testing of the new tunnel operations system, and other work like signing and irrigation systems. As you’re driving through the corridor be on your A game and pay close attention. The roadway will be changing and in transition for the next month or so.

You can also expect a period of adjustment when the new HOV lanes open and the express lanes close. This is a big change for everyone that uses I-90 across Lake Washington. It could take months for traffic to settle into its new routine.

I cross Lake Washington on I-90 all the time. What does this mean for me?

Let’s walk through the overall changes and then get into some details for specific areas.

The existing HOV lane currently starts or ends – depending on the direction you are traveling – near 80th Avenue SE on Mercer Island. After the weekend of June 3, this lane will extend all the way across the floating bridges to Rainier Avenue in Seattle. There will be one seamless HOV lane between Seattle and Issaquah that doesn’t depend on the direction of the express lanes.

The I-90 trail will remain open and unchanged for those who use it to bike, run or walk. Buses between Seattle and the Eastside will continue to use the same routes and stops they do today.

Rainier Avenue area
The new HOV lanes will start or end here depending on the direction you are traveling.
  • The ramps to and from the express lanes near the Mount Baker Tunnel will close.
  • The express lanes HOV ramps at 5th Avenue S in Seattle will become bus only.
  • The I-90/Rainier Freeway Station will remain open for bus riders heading between Seattle and the Eastside. It will continue to operate until September 2018 when Sound Transit begins construction on the Judkins Park Light Rail Station.

Mercer Island traffic
The express lanes ramps at 77th Avenue SE and Island Crest Way will close.
  • The westbound Island Crest Way on-ramp will become HOV only. You’ll need at least two people in your vehicle to use this ramp. Solo drivers will need to use 76th Avenue SE, East Mercer Way or West Mercer Way to access westbound I-90.
  • An eastbound HOV exit from the new HOV lane to Island Crest Way will open in mid-July. The existing right side exit will remain open.

East Channel Bridge area

  • The express lanes ramps near East Mercer Way will close.

These are obviously some major changes on a very busy corridor. The key will be studying up on what to expect, familiarizing yourself with the changes and then paying close attention when you’re on the highway. There will be a bit of a learning curve but eventually the new normal will kick in.

Friday, May 12, 2017

Don’t let construction delays in Cowlitz and Wahkiakum counties steal your sunshine

by Tamara Greenwell

After smashing several record rainfall totals since late last year, many of us are chomping at the bit to get out and enjoy the sun in our spectacular state. Once you get rolling, hitting the brakes can put a hitch in your giddy up unless you plan ahead.

It’s no coincidence that construction season and warmer weather go hand in hand in the Pacific Northwest.

Here’s why
Higher temperatures warm the roadway surface, which makes new pavement stronger and more durable. Resurfacing a highway in cool, wet conditions jeopardizes the quality of the final product. Waiting until we have long stretches of warm, dry weather means we get the best bang for our buck and ensures pavement repairs will last for years to come.

Last fall, resurfacing projects on State Routes 4, 411 and 432 in Cowlitz and Wahkiakum counties were put on hold due to cool, wet weather conditions, but with better weather in the forecast, construction resumes next week.

Know before you go!
While these projects will go a long way to preserve our transportation infrastructure, traffic delays are expected while crews are on the road. To minimize the impact of construction delays, a good portion of the work and lane reductions will take place overnight.

With almost 20 miles of resurfacing work to be done, it’s a good idea to plan ahead. Sign up to receive email traffic alerts or check current traffic conditions via our mobile app.

Project details
More than seven miles of SR 432 from SR 4 to 3rd Avenue in Kelso will get a fresh layer of pavement. Crews will also replace more than 60 broken and unstable concrete panels under the surface of the roadway to prevent additional deterioration.

A stretch of SR 432 in Kelso will get new pavement and concrete panels this summer.

Crews will resurface more than three miles of pavement on SR 411 between Longview and Castle Rock, along with intersection, crosswalk and striping enhancements along the corridor.

About three miles of pavement on SR 411 between Longview and Castle Rock
will see pavement and lane marking enhancements during a summer project.

Almost nine miles of pavement on SR 4, between Kandoll Road and Ingalls Road through Cowlitz and Wahkiakum counties will get a new protective surface.

About nine miles of pavement on SR 4 through Cowlitz and Wahkiakum counties will get a new protective surface this summer.

The end result 
By the time fall comes around, we’ll all be restocked with our fair share of vitamin D and these resurfacing projects will provide a smoother ride as we roll into another wet winter.

Planning I-5 construction work around Seattle’s busy schedule

by Marqise Allen

Somewhere between zero and one.

That’s the average number of weekends in June, July and August where there isn’t a game, concert or some event happening in the Seattle area. These warmer and drier months also happen to be primetime for highway construction. So how do our traffic engineers plan projects given the near impossibility of an open weekend in the summer, while still trying not to affect drivers too badly?

“A line from the movie ‘Argo’ comes to mind,” said Mike Swires, one of our traffic engineers. “It’s about picking the best bad plan.”
A major part of the northbound I-5 rehab project from Kent to Seattle is replacing aged concrete panels.
Indeed, it takes months of working with project staff to figure out how to fit all the needed work in while also avoiding major events like Seafair weekend, Independence Day weekend and the Bite of Seattle. Keeping as many highway lanes open as possible during those huge events is important, but it starts to cut in on viable work time.

One of the biggest projects in the Seattle area this summer will be #ReviveI5. The northbound I-5 pavement preservation project between Kent and Seattle will require 10 weekends of lane closures, eight of those this year. These weekends are necessary because some of the work, like replacing expansion joints, simply can’t be done overnight. Two hours on the front end and back end to set up and take down the traffic control and heavy equipment would leave only a few hours to do the job and would also extend the timeline and raise the cost of the project significantly.

Getting creative

Crews will replace old expansion
 joints on northbound I-5

between Kent and Seattle.
I-5 has lasted 51 years, but it’s time to give the highway some much needed work. As significant as the actual repaving and panel replacement is, scheduling this critical preservation work is equally important. When we schedule weekends, where drivers are traveling for particular events, other projects as far away as Tacoma, and local city and county projects are happening at the same time all have to be taken into consideration. We all want to take advantage of the few drier months of the year but we can’t all work at the same time.

It’s akin to trying to fit a bunch of puzzle pieces together – accounting for all the variables to put everything together to avoid conflicts between projects, as well as schedule closures so that the effects to events are kept to a minimum. And the infamous Washington weather is a major variable that is out of our control. The schedule is tight enough, but pushing work back due to rain, forces those closures up against bigger event weekends at times.

“We try to think outside the box as much as we can,” Swires said.

What’s the best way to complete the work? Do we close one direction of I-5 completely one weekend to cut down on the total number of weekend closures? Do we close a ramp here or there? What about partnering with the city and detouring traffic through surface streets? Could they handle the 100,000 vehicles that use this section of I-5 each day?

These are all challenging questions to address and the population boom in the area hasn’t made the task any easier. While we try to keep our closures outside of heavier travel times, with as much growth as our area has seen, road work will always impact someone.
Planning major summer roadwork around big events like the Bite of Seattle is a huge challenge.
 (Photo courtesy of Bite of Seattle).
Team effort
Drivers have a part to play in these closures too. Engineers do their best to dodge a minefield of events, but travelers need to know before you go. They can ease congestion during the busy construction weekends by carpooling, using alternate routes and planning their trips accordingly. By planning ahead and knowing what’s going on on the highways, we can all get the most out of a busy and fun summer.

This is the last in a four-part series on highway preservation work starting this month on northbound I-5 from Kent to Seattle. The others are:

Thursday, May 11, 2017

Why all the construction on I-90?

by Meagan Lott

You may have already heard we have a lot of construction taking place this summer on I-90 between North Bend and Ellensburg. But you may be wondering why we are doing all this work? Good question.

The projects

Snoqualmie Pass East improvements: Traffic congestion is a huge issue on I-90 east of Snoqualmie Pass, especially during major holidays and summer weekends. The multi-year project we have been working on between Hyak and Easton is going to relieve that congestion by widening I-90 from four to six lanes. We are also removing rock from the slopes above I-90 to stabilize the hillside and prevent rocks from falling onto the roadway – hence all the nighttime blasting closures over the years. Rock blasting isn’t expected to start until June and you can check our What’s Happening on I-90 webpage for specific days and times. This project is also building bridges, some even for wildlife and avalanches. The first seven miles of this 15-mile project is scheduled to be complete by 2019. You won’t see construction on the remaining eight miles for another couple of years. We are still working on the design.
Summer is a busy time for traffic across I-90 but it’s also a busy time for construction work on the corridor.

Cle Elum to Elk Heights pavement repair: Work continues between Cle Elum and the Elk Heights area to replace cracked sections of the westbound lanes. If you have ever driven on this section of I-90, you know how rough it is as the pavement along that stretch is more than 45 years old. We started work on this section of I-90 last summer and will be finished by this fall.

North Bend to Snoqualmie Pass pavement and bridge repair: Later in May, we will be working on another rough section of I-90 from North Bend to the summit of Snoqualmie Pass. We will be replacing pavement on the eastbound lanes and repairing several bridge decks in the westbound lanes as well as a bridge deck in the eastbound lanes just east of North Bend. We are also going to be making repairs to bridge decks between Easton and Ellensburg. A lot of our bridge decks have taken a beating over the years and can cause a very bumpy ride.

We opened one new avalanche bridge on I-90 across Snoqualmie Pass last August, and another will be complete in 2018.

Why during the summer?
Obviously summer is a popular time for people to be traveling and I-90 is a heavily-used route for that. At the same time, we need dry, warmer weather for much of this work, in particular the extensive pavement and bridge deck repair as warm temperatures are much more conducive to concrete setting correctly and lasting long term.

It’s impossible to do this type of work, especially this time of year, without there being traffic backups. We have to close lanes to get this done and to keep our work crews and travelers safe. We hope knowing about the improvements we’re making to I-90 will take some of the sting and frustration out of being stuck in traffic.
Much of the work on I-90 this summer involves replacing aged and cracked pavement, giving travelers a smoother trip.

That said, we have many resources to help you plan your trip across I-90 this summer. We have information about construction on multiple websites, including the What’s Happening on I-90, Snoqualmie Mountain Pass and Traffic Alerts pages. Follow us on Twitter @snoqualmiepass and @wsdot_east or sign up for email updates or subscribe to our text message alerts by sending the phrase “WSDOT Snoqualmie” to the number 468311.

Tuesday, May 9, 2017

New app feature makes tracking your route simple

by Mike Allende

Our mobile app has proven to be a popular addition to our online traffic tools since it went live in 2010. Users receive live traffic conditions; ferries information and mountain pass reports, among other features, to help plan their trips. Now we’re excited about a new addition that should make it even more convenient.

Our new My Routes feature allows travelers to check for traffic closures, construction delays and other alerts in a specific area by creating a personal route. For example, if your daily commute takes you between Everett and Seattle, you can set that up and save it for easy reference to see what traffic conditions look like along your route.

Creating a new route on the WSDOT mobile app with My Routes. See steps below.


Using your phone’s GPS, My Routes tracks your trips and saves them within the app. Once it’s saved, you can then choose to automatically add content like traffic cameras, available travel times, ferry schedules and mountain pass reports to your favorites.

Your saved routes will show up on the My Routes menu. To access this menu and create your first route,

  1. Start at the WSDOT app home screen and tap the My Routes button.
  2. Tap the plus (+) button to add a new route. This will be in the top right for iPhones, bottom right for Android.
  3. Once you're ready, tap the green start button, set your phone aside, and start driving. The WSDOT app will begin tracking your route with the device’s GPS.
  4. Once you’ve completed your route, tap “Finish” to save it. You can then access that route any time to get live information to help you plan your trip and know what traffic or closures await you.

As with any of our communications tools, whether it’s our app, Twitter, Facebook or anything else, please don’t use your device while you’re operating your vehicle. Distracted driving puts you and everyone else on the road at risk. Check the app before leaving home, or if you have a passenger, have them check.

We hope this new personalized feature is useful in helping you know before you go.

Friday, May 5, 2017

With deadline approaching, I-90 closure weekend could be a doozy

by Mike Allende

With just a few more weekends of I-90 directional reroutes across Lake Washington left, the end is near for of the I-90 Two-Way Transit and HOV Operations project.

That’s the good news.

The not so good news is that getting to that finish line will require work on a very busy weekend in the Puget Sound area. This isn’t ideal, but it’s necessary for us to meet our deadline of June 3 for opening the new HOV lanes across the highway and closing the express lanes to allow Sound Transit to build light rail across the lake.
Crews are getting close to finishing preparing I-90 for its new HOV lane across Lake Washington.

The biggest piece of work left is restriping the roadway to create room on the left side for the new HOV lane. After this weekend, things will look different in the eastbound direction of I-90, especially inside the Mount Baker Tunnel. Pay attention, as how the roadway looks and functions will be changing over the next month. We expect a period of adjustment both as we get ready to open the new HOV lanes and when the new lanes open and the express lanes close on June 3.

What’s closed?
The closure itself isn’t anything new, we’ve done this almost 30 times already. From 11 p.m. Friday, May 5 to 5 a.m. Monday, May 8, eastbound I-90 traffic between Rainier Avenue South in Seattle and Bellevue Way SE in Bellevue will be reduced to one lane and routed to the express lanes. Also:
  • The Rainier Avenue South on-ramps to eastbound I-90 will be closed. A signed detour will be in place.
  • The eastbound I-90 exit to Rainier Avenue South will be open.
  • The I-90 Trail will remain open.
  • Drivers hauling flammable materials will need to use I-405, SR 520 or SR 522.
The SR 513 Montlake Bridge will be closed for some of the day Saturday during the Opening Day of Boating Season festivities.

But that’s not all. From 10 a.m. to 4 p.m. Saturday, the SR 513 Montlake Bridge will also close for the annual Seattle Yacht Club Opening Day of Boating Season parade. The westbound SR 520 exit to Montlake Boulevard NE will also be closed. A police officer will control traffic taking left turns from the eastbound SR 520 exit to northbound Montlake Boulevard NE.

Why the closure?
We need to close the mainline of I-90 to allow crews to complete upgrading the two tunnels and to stripe the highway into its new configuration, including the new HOV lanes. Crews must often work across all lanes of traffic in doing the tunnel upgrades, and to safely stripe the highway, traffic must be kept off of the lanes. There is about 14 miles of striping to do and by closing the roadway for the weekend, they should – weather depending – be able to get most of it done.

But the special events!
Yes, this is a very busy weekend.
  • Windermere Cup/Opening Day of Boating Season is from 10 a.m. to 4 p.m. at the Montlake Cut. 
  • Sounders MLS Cup rematch vs. Toronto at noon Saturday at CenturyLink Field.
  • Mariners vs. Texas Rangers at 6:10 p.m. Saturday and 1:10 p.m. Sunday at Safeco Field.
Unfortunately, there is no good weekend for this type of closure and we’re running out of weekends to get this done before our deadline. There are four weekends in May and two of them have the same Sounders/Mariners conflicts. Another is a holiday weekend. We do our best to work around as many major events as possible but in this case, it couldn’t be avoided.

Sounder train service will be a good option for those headed to the Mariners and Sounders games this weekend.

What am I going to see Monday morning?
If all goes according to plan, drivers will start to see lanes shifted to the right and the area that will become the new HOV lane taking shape. Pay attention on Monday morning because things will look different, which also means drivers may be behaving differently. Westbound drivers should expect to see similar changes after the May 12-15 weekend.

In the eastbound Mount Baker Tunnel things will be even more different. Instead of three lanes, drivers will see four lanes. Once they get out of the tunnels they’ll merge back into three lanes near the west high-rise. We realize this will be change for drivers so please pay attention to the new lane markings as well as the vehicles traveling around you. It always takes time for people to adjust to any traffic change, temporary or permanent. Ultimately the far left lane will become the new HOV lane but opening this small section to four lanes will help us keep drivers and workers safe while our crews finish work on the project.
Eastbound I-90 across Lake Washington will be detoured to the express lanes this weekend.
Why can’t you just open the lane after you’ve restriped?
Adding the new HOV lane isn’t as simple as just restriping the roadway. There’s a lot of work that needs to happen over the next month before we can open the new lanes, including signing, irrigation and putting the finishing touches on all those tunnel upgrades we’ve been doing over the past two-plus years. Our crews are working hard to get everything done so we can open the new HOV lanes on June 3.

What about tolls on SR 520?
The I-90 bridge will still be open so while traffic congestion will be higher because of the reroute to the express lanes, it will still be possible to use the highway to cross the lake. Waiving tolls on the SR 520 bridge would have a significant effect on toll revenue which is needed to cover debt payments. We have to apply tolls fairly and consistently to be sure that happens, including when we have lane closures on I-90.

What should people do?
If you’re headed to one of the events, leave as early as possible. We’re going to see added congestion on I-5, I-405 and other surrounding highways. If you don’t have to go into Seattle, now might be a great weekend to explore other parts of our state.

Another option is using transit. Sounder train service will be available for the Sounders game Saturday and the Mariners game Sunday. You can also take the bus or light rail to events at the stadium. Those going to the Windermere Cup might consider taking light rail to the Husky Stadium station. Buses are another option but be prepared for some potentially crowded routes, and it’s National Bike Month so if you’re comfortable riding, it will help you avoid any parking stress.

It’s going to be a challenging weekend but the end of this portion of the I-90 project is near and with some planning and adjustments, we’ll be able to head out and enjoy an exciting weekend.