Knee replacement surgery but for bridges: Preserving the Chehalis River Bridge in Aberdeen

By Angela Cochran

As people get older, we start to notice our bodies aren’t as nimble as they used to be. We start feeling aches and pains and even a little creaky in our knees.

This is also true of our bridges. As they age, parts start to wear down and need repair or replacement.

Think of bridge bearings like the joints in your body. They allow the bridge to move and flex with changes in temperature, traffic loads and even during natural events like windstorms. Just like our joints need to stay in good shape to keep us moving, bridge bearings are crucial for keeping a bridge functional.

Built in 1955, the Chehalis River Bridge connects people in north and south Aberdeen.

As the US 101 Chehalis River Bridge approaches its 70th year connecting north and south Aberdeen, important components are deteriorating and need replacing. Over the years, rocker bearings under the north side of the bridge have experienced wear and tear. Here’s why replacing them is important.

1. Safety First : Worn-out bearings can compromise the bridge's stability. Replacing them helps keep the bridge operational and open to travelers.
2. Preventing Damage : If bearings fail, it can lead to more severe damage to the bridge structure itself. Think of it like ignoring a bad knee—it might lead to bigger problems down the road.
3. Longevity : Replacing the bearings helps preserve the bridge and ensures it can continue serving the community for many more years to come.

What ’s happening

Work will take place under the H Street and G Street on the north side of the bridge.

The replacement process involves some careful planning and engineering. The good news is the bridge will remain open to travelers. People who use the bridge overnight will see some temporary changes to how they enter and exit the bridge. Crews will start work on Friday, Nov. 15 to raise the portion of the bridge over East State Street. During this time, the on-ramp from southbound US 101/H Street will close. Travelers will follow a signed detour via the West State Street ramp to get onto the bridge.

One of eight rocker bearings that will be replaced to keep the bridge in good working order.

The bearings are located inside of the bridge’s support columns or piers. The closure allows workers to lift the bridge slightly, less than an inch, and place temporary supports. For about three weeks, crews will work to remove the old bearings and install new ones. During this time, East State Street will close around the clock under the bridge where crews are working.

Once work is complete under H Street, crews will close it again to lower the bridge back to its original position. Then the process will be repeated under northbound US 101/G Street. The G Street exit from the bridge will close twice while we raise and lower that section. People will use the West State Street exit ramp during those times.

Closure schedule

The southbound US 101/H Street ramp to the Chehalis River Bridge will close:

• 9 p.m. Thursday, Nov. 14 to 5 a.m. Friday, Nov. 15
• 9 p.m. Thursday, Dec. 5 to 5 a.m. Friday, Dec. 6

The northbound Chehalis River Bridge ramp to US 101/G Street will close:

• 9 p.m. Friday, Dec. 6 to 5 a.m. Saturday, Dec. 7
• 9 p.m. Thursday, Jan. 2 to 5 a.m. Friday, Jan. 3, 2025

Be sure to check our app and statewide travel map to get real-time closure information before heading out the door.

Preservation funding challenges

This bridge bearing replacement project is one of 11 preservation projects statewide that were funded in 2024 by the State Legislature. Preservation projects aren’t about building new infrastructure – they help extend the useful life of an asset, such as a bridge. Every asset has a lifespan, and for bridges, that is an average of 75 years. Many of our bridges are either approaching the end of their lifespan or are even well over it. Fully funding our preservation backlog of $1 billion would greatly reduce emergent repairs to our transportation system.

In the meantime, our dedicated bridge maintenance crews continue to take innovative steps to keep this bridge and others operational for as long as possible.

So, next time you travel over the Chehalis River Bridge, think about the behind-the-scenes work that keeps it in shape. It's all about keeping our infrastructure safe, reliable, and ready for the future.

Progress on Northeast 85th Street and upcoming full closure

By Julie Moon

Since breaking ground in fall 2023, significant progress has been made on the I-405/Northeast 85th Street and Inline BRT Station Project including:

• replacement of a city watermain in Kirkland,
• construction of future Interstate 405 bridge approaches, and
• installation of bridge foundations and columns.

Crews are preparing for a full weekend closure of Northeast 85th Street this November. Crews will set bridge girders up to 156 feet long over Northeast 85th Street for the new southbound I-405 bridge. The bridge girders for the northbound I-405 bridge will be scheduled for installation in 2025.

Bridge girders are concrete beams that support the driving surface and are a main structural component of a bridge. There are 16 bridge girders that will support the future I-405 bridges over Northeast 85th Street. This complex work requires a weekend closure to help keep construction workers and the public safe.

Example of crews setting bridge girders.

Upcoming full closure details

Northeast 85th Street between Kirkland Way/114th Avenue Northeast and 120th Avenue Northeast will be closed in both directions beginning 11 p.m. Friday, November 15 to 4 a.m. Monday, November 18. Crews will begin reducing lanes as early as 9 p.m. The I-405 on- and off-ramps from Northeast 85th Street will also be closed.

Signed detours will be in place for travelers. The detour maps for the closures can be found by clicking on the links below:

• Northeast 85th Street vehicle detour routes (The linked image shows map of the vehicular detour route during the Northeast 85th Street closure. Eastbound travelers will take Sixth Street Southeast, Northeast 68th Place and 120th Avenue Northeast to continue onto eastbound Northeast 85th Street. Westbound travelers will use 120th Avenue Northeast, Northeast 68th Place, and Sixth Street Southeast to continue onto westbound Northeast 85th Street.
• Northeast 85th Street pedestrian and cyclist detour routes (The linked image shows map of the pedestrian and cyclist route during the Northeast 85th street closure. Eastbound travelers will use the crosswalk at Kirkland Way/114th Avenue Northeast if needed, turn right to go south on the pedestrian path near the southbound I-405 on-ramp, keep left to go south on 116th Avenue Northeast, turn left to go east over the pedestrian bridge, turn left to go east on Northeast 80th Street, and turn left to go north on 120th Avenue Northeast. Westbound travelers will turn left to go south on 120th Avenue Northeast, turn right to go west on Northeast 80th Street, turn right to go over the pedestrian bridge, turn right to go north on 116th Avenue Northeast, keep right to continue north on the pedestrian path near the southbound I-405 on-ramp, and use the crosswalk at Kirkland Way/114th Avenue Northeast if needed.)
• Northeast 85th Street to northbound I-405 on-ramp closure detour routes (The linked image shows map of the detour route for the northbound I-405 on-ramp closure from Northeast 85th Street. Eastbound travelers will take Central Way, Sixth Street South, and use the on-ramp at 116th Avenue Northeast. Westbound travelers will take 124th Avenue Northeast and use the on-ramp at Northeast 124th Street.)
• Northbound I-405 off-ramp to Northeast 85th Street closure detour routes (The linked image shows map of the detour route for the northbound I-405 off-ramp closure from Northeast 85th Street. Northbound I-405 travelers will take Exit 20A and 124th Avenue Northeast to get back onto Northeast 85th Street.)
• Northeast 85th Street to southbound I-405 on-ramp closure detour routes (The linked image shows map of the detour route for the southbound I-405 on-ramp closure from Northeast 85th Street. Southbound I-405 travelers from eastbound Northeast 85th Street will take Sixth Street Southeast, Northeast 68th Place, and use the on-ramp at Northeast 70th Street. Southbound I-405 travelers from westbound Northeast 85th Street will take 120th Avenue Northeast and use the on-ramp at Northeast 70th Street.)
• Southbound I-405 off-ramp to Northeast 85th Street closure detour routes (The linked image shows map of the detour route for the southbound I-405 off-ramp closure from Northeast 85th Street. Southbound I-405 travelers going eastbound Northeast 85th Street will take Exit 17, Northeast 70th Street, and 120th Avenue Northeast to get on Northeast 85th Street. Southbound I-405 travelers going westbound will take Exit 17, Northeast 68th Place, and Sixth Street Southeast to get on Central Way.)

Full closure of Northeast 85th Street and I-405 on- and off-ramps.

Expect increased congestion and plan for additional travel time during these weekends. Use alternate routes and travel during off-peak hours. Details and updates of the full closure will be posted on the project webpage. The schedule is subject to change due to the nature of construction.

New lane alignment on Northeast 85th Street until spring 2025

Earlier this summer, crews restriped, set up barriers and shifted traffic on Northeast 85th Street to create space for a construction work zone. We expect this lane configuration to be in place until mid-2025.

Current lane alignment on Northeast 85th Street to create work area in the center of the road. 

Looking ahead

The next major construction on the project will include a new lane alignment. In February, drivers will start using the new permanent I-405 bridges over Northeast 85th Street. The new northbound and southbound lanes will be to the outside of the existing lanes. Those older inside lanes will later be demolished. In the future, direct-access and inline BRT stations will be built where the old lanes were. The new bridges will be twice as long as the old bridges. This allows them to span the new middle level roadways and all the general lanes on Northeast 85th Street.

Adjusting to traffic changes takes time, so it's important to stay focused on the road and mindful of the drivers around you. Please ensure your full attention is dedicated to driving to maintain safety for everyone on the road.

Check out the WSDOT real-time travel map for up-to-date information. If you have any questions and/or you would like to sign up for project updates, please email I405SR167Program@wsdot.wa.gov. Stay informed by subscribing to WSDOT updates for King County.

Celebrating 520's final chapter: Construction is a go on the Portage Bay Bridge and Roanoke Lid Project!

By Allie Breyer

This past August, we broke ground on the Portage Bay Bridge and Roanoke Lid Project. This is the final major project in the SR 520 corridor. Construction on the SR 520 Program started in 2011 with the SR 520 pontoon construction project. The Portage Bay Project will complete SR 520’s reconstruction from I-405 in Bellevue to I-5 in Seattle.

Check out the highlights from the groundbreaking ceremony in the video below:

Another construction project?

We get it. You may not be celebrating more construction in this area. If we can offer a silver lining, this project brings us one step closer to completing all major construction projects on the SR 520 corridor. When the project is complete in 2031, we will have transformed the 12.8-mile-long corridor with safer bridges, dedicated lanes for busses and carpools and five landscaped lids. It will also include a bicycle and pedestrian trail from Bellevue Way to Capitol Hill in Seattle. That’s almost 6 miles.

Why do we need a new Portage Bay bridge?

We built the Portage Bay Bridge in the early 1960s using hollow concrete columns. This design was great at the time because it saved weight and materials. We now know that it’s not-so-great for withstanding earthquakes. In the event of a large quake, those columns could collapse, putting the bridge and everyone who uses it at risk.

That’s why we need to build a new one. This project will replace the old bridge with two bridges that can bear the shaking and stress of an earthquake without breaking. These new bridges will use solid foundations and modern engineering techniques so they’re safer and stronger.

Drawing of Portage Bay bridge, 1960. Courtesy of the Seattle Municipal Archives, #63342, Series 2613-07.

This project also:

• Improves connections for busses, carpools and vanpools.
• Extends the regional SR 520 Trail across Portage Bay.
• Creates a new bicycle and pedestrian crossing over I-5.
• Builds a highway lid over SR 520 with three acres of landscaped open space.

All these improvements help to connect communities and support travelers of all kinds.

Major elements of the project include the new Roanoke lid, the new Portage Bay Bridge, an extension of the SR 520 Trail, and new or upgraded bike and pedestrian connections from the lid and the Bill Dawson Trail.

What you can expect this fall:

Since breaking ground this past summer, we’ve been getting everything ready for major construction work. This work will begin in November.

Here’s what you can expect this fall:

• Piledriving in Portage Bay: As soon as November 6, we'll begin driving large steel or concrete poles deep into the ground to create a foundation for the temporary work trestle. These poles are known as “piles”. This process involves heavy machinery that either vibrates or hammers the piles into place. This is one of the noisier parts of construction. If you live nearby, you can expect to hear loud noises and feel vibrations when crews are driving piles. This will be the first of six piledriving seasons allowed on the project. Each season lasts from September – April, though piledriving may not occur each season.
• Lane closures, parking restrictions and detours: Around East Roanoke Street, Delmar Drive East and Boyer Avenue East, you may notice temporary lane closures and detours. Parking in some areas will also be restricted. It might slow you down, so give yourself extra time when traveling through these spots.
• Increased truck traffic on East Lake Washington Boulevard : You may see more trucks on the road and increased traffic. Crews will be moving materials and equipment to the site.
• Tree and vegetation removal around Boyer Avenue East: We will need to remove some trees and vegetation to make room for construction. But don’t worry – we’ve got a whole plan to replace them. For every tree we take down, we’ll plant another – and sometimes two! – when the project is complete.
• Increased barge traffic in Portage Bay: You may see boats tugging barges into Portage Bay from either Elliot Bay or Lake Washington.

Map graphic showing locations of construction work happening this fall. 

How will the bridge be built?

We’re building the project in three stages so we can maintain traffic over the bay. Over the next year, crews will build two temporary work trestles to the north and south of the current bridge. A trestle is a temporary platform that lets crews bring the material and equipment they need to build the new permanent bridges. We’ll also begin construction on the new “north” westbound bridge.

Crews will build work trestles and the new north bridge during Stage 1. In 2025, crews will start building the Roanoke lid.

Learn more about the three stages of construction and how we will build the trestles, shift traffic and remove and rebuild the bridges over the next few years.

How you can stay informed

We are committed to keeping you updated throughout construction. For the most up-to-date information about SR 520 construction activities and planned road closures, we encourage you to sign up for weekly email updates and regularly visit our Construction Corner webpage and project webpage.

We’ll also host monthly construction update meetings virtually. We’ll send information via our email list.

If you have questions or concerns, feel free to reach out to us directly by phone or email:

• SR 520 Program information line: 206-200-9484 (M-F, 8 a.m. to 5 p.m.)
• Portage Bay project 24-hour construction hotline: 206-319-4520
• Email: sr520bridge@wsdot.wa.gov

Three lifesaving events in a week for Mukilteo/Clinton ferry route crews

 By Bryn Hunter

Hardcore Halloween fans spend October getting ready for the spookiest night of the year. But for our Mukilteo/Clinton ferry route employees, the week before the holiday was truly scary.

Thanks to the quick thinking and bravery of our crew and terminal staff, three lives were saved in one week.

Halloween heroics

Early on Oct. 31, Able-Bodied Sailor Steven Overa saw a crash at the I-5/I-405 interchange in Lynnwood on his way to work in Mukilteo. A vehicle had flipped over and caught fire. Steven pulled over, used his own fire extinguisher to help put out the flames and stayed until emergency crews arrived.

The crash at the I-5/I-405 interchange in Lynnwood that Steven Overa responded to on his way to work. 

Port Captain Jay Mooney presents a WSF Shared Value Coin to Steven Overa for his heroism on Oct. 31. 

Weekend water rescues

Just a few days earlier, our Mukilteo/Clinton route employees were busy with two water rescues in a single weekend. The same crew on Kitsap saved a person in the water and a kayaker in a span of 24 hours.

On Oct. 26, Mukilteo Ticket Taker Baylee Lane alerted the Kitsap wheelhouse that a woman was in the water near the ferry dock. Capt. Jeff Knaplund stopped the boat right away. Able-Bodied Sailors Collin Brasfield and Ian Fels then launched a rescue boat to help the woman. After about 25 minutes, with help from local police and fire department staff, the woman was safely brought onto the dock. It takes the entire crew, from the wheelhouse to the engine room, to stop a ferry that expertly. And it takes a lot of skill on the part of terminal staff to swiftly respond to an emergency.

Mukilteo terminal staff and local emergency responders wait on the dock while our crew aboard Kitsap rescues a woman in the water on Oct. 26. (Photo courtesy Mukilteo International Association of Firefighters Local 3482)

Then, on Oct. 27, Chief Mate Kevin Simmons saw a kayaker in trouble who couldn’t get back into his kayak. After notifying the Capt. Knaplund, the same two crew members from the day before launched a rescue boat. They pulled the kayaker and his gear from the cold water and brought him to safety. Once on the ferry, Able-Bodied Sailor Elbert Johnson kept an eye on the man until he was handed over to emergency responders on shore.

Able-Bodied Sailors Ian Fels and Collin Brasfield pull a kayaker out of the water and into a rescue boat off Mukilteo on Oct. 27

We have immense pride in our work at Washington State Ferries and these lifesaving events exemplify the finest ideals of the maritime profession. The safety of our passengers and those we assist in distress is part of our mission. So do not be afraid, Washington State Ferries is looking out for your safety.