Managing the Flow: A Revive I-5 Update

By: RB McKeon

Seahawks game on Saturday and weekend construction

It’s game week in Seattle, and with a Seahawks home game this Saturday, Jan. 17, a lot of people are focused on one thing: How do I get to kickoff without missing the action, and how do I get back home? With Revive I-5 construction already affecting travel around the Ship Canal Bridge, game-day traffic adds another layer to an already busy weekend.

If you’re heading downtown to cheer on the Hawks, transit is strongly encouraged and continues to be the easiest and most reliable way to get to and from the stadium during construction. Transit avoids the most constrained parts of the highway system and helps keep traffic moving for everyone.

In addition to the lane reductions on northbound I-5, this weekend, there is also work planned on northbound I-405 in Bellevue this weekend, which means we have construction on one of the routes people may opt to use instead of I-5.

Up to two lanes of northbound I-405 will be closed from Southeast Eighth Street to Northeast Fourth/Eighth Street from 11 p.m. Friday, Jan. 16, to 4:30 a.m. Monday, Jan. 19, with additional nightly lane closures north of I-90.

The following on-/off-ramps will be closed:

• Southeast Eighth Street on-ramp to northbound I-405
• Northbound I-405 off-ramp to Northeast Fourth/Eighth Street (Exit 13 A/B)

Signed detour routes will be in place for the ramp closures.

Game-day tip: plan ahead, check conditions before you go, and consider transit to get to kickoff and home again with less stress.

We’re Reviving I-5

If you’ve been traveling through Seattle this week, you’ve likely felt the impacts of Revive I-5 in real time. Lane reductions, slower speeds and longer travel times in and around the Ship Canal Bridge have changed daily routines for thousands of people. We know this hasn’t been easy.

The impacts are real. The delays have been long. Commutes have changed. That disruption is felt differently by every driver, and we don’t take that lightly. At the same time, we know from doing this work before that traffic patterns evolve. As people adjust routes, schedules, and expectations, the system does find a new rhythm even if it takes time.

We want to share some updates on what crews worked on, what the early traffic data is showing and what’s coming up next so people can plan with the best information available.

What happened over the full closure weekend

Over the weekend of Jan. 10–11, WSDOT’s contractor, Atkinson Construction, completed the work needed to set up the long-term work zone for the Revive I-5: Ship Canal Bridge Preservation project. This required a full closure of all northbound I-5 lanes across the bridge.

Crews place barrier that will crate a safe workzone during the construction on Revive I-5.

During that weekend, traffic patterns shifted across the entire region:

• Saturday traffic volumes were higher than a typical weekend, while Sunday volumes were lower, reflecting normal weekend travel behavior.
• Alternate routes including SR 99, I-405, SR 520, and I-90 all saw increased use as drivers adjusted.
• During the full closure weekend, the northbound express lanes were utilized and carried a share of northbound traffic while the mainline lanes were closed.
• A Sunday afternoon collision in the northbound express lanes briefly reduced volumes, underscoring how sensitive the system can be when capacity is constrained.

What crews accomplished behind the scenes

While drivers were adjusting to closures and detours, crews were laying the groundwork for long-term preservation work.

Over the weekend, crews:

• Pinned traffic barriers to lock in the long-term work zone
• Paved a new through lane and restriped traffic across the bridge

Lane diagram of traffic shift at NE 45th/50th Street off-ramp

Since traffic reopened with lane reductions, crews have continued critical preparatory work, including:

• Installing debris shields to protect vehicles traveling near active work
• Sealing expansion joints to prevent water intrusion ahead of hydro-demolition
• Chipping the bridge deck to assess underlying concrete conditions
• Moving specialized equipment into place for upcoming phases

This early work may not always be visible, but it’s essential to preserving the bridge deck and extending the life of a structure that carries hundreds of thousands of trips every day.

What we’re seeing now that weekday travel has returned

As weekday commuting resumed on Monday, what we have seen in these first few days are traffic patterns resembling what we saw during summer 2025, the first time this corridor experienced sustained Revive I-5 lane reductions.

So far, we’re seeing:

• Earlier commute start times
• Morning backups on southbound I-5, sometimes stretching north toward the King/Snohomish County line
• Increased use of SR 99 and I-405 as alternate north–south routes
• Continued pressure on SR 520 and I-90 as part of the regional adjustment

These changes are expected. During summer 2025, it took several weeks for traffic patterns to settle as people adjusted routes, schedules, and travel choices. What we’re seeing now follows that same pattern.

It’s also important to note that some alternate routes include tolls, and WSDOT continues to collect tolls on toll roads where tolling is in place.

Why the express lanes operate northbound only

One of the most common questions we’re hearing is why are the I-5 express lanes operating northbound 24 hours a day during this phase of Revive I-5?

During construction, several factors guide how the express lanes operate, including safety, traffic flow, and overall system reliability. With northbound I-5 reduced from five lanes to two across the Ship Canal Bridge, even a single collision or disabled vehicle can significantly disrupt traffic. Keeping the express lanes operating northbound helps reduce the risk of a full northbound shutdown and gives traffic operators greater flexibility to respond to incidents as they occur.

We understand how frustrating this is for people traveling southbound especially when you’re sitting in traffic and see express lanes that may appear lightly used at a given moment. That frustration is real. While the lanes may not always look full, they are being managed as a system-balancing tool, available to absorb surges, incidents, or breakdowns in the northbound lanes as conditions change throughout the day. Their value isn’t measured only by how full they look at one point in time, but by the reliability they provide to the entire corridor over the course of the day.

As weekday travel has returned, the express lanes have continued to play a key role in absorbing peak-period demand and providing flexibility when conditions change throughout the day. They are being managed as part of a regional transportation system, helping balance traffic across I-5, I-405, SR 99, and east-west routes.

View from WSDOT’s traffic camera at NE 45th Street on Wednesday, Jan. 14

It’s also important to note that this express lane operation is tied to specific construction phases and is not a permanent change. Express lane operations are aligned with where capacity has been reduced. When construction shifts to the southbound lanes in 2027, the express lanes are expected to operate southbound for the same reason; to help return capacity where it has been reduced due to construction.

Changing the direction of the express lanes is not as simple as flipping a switch. Each change requires closing the lanes, clearing vehicles, resetting gates and signs, and completing safety checks before reopening in the opposite direction. If an issue is identified during that process, the changeover can be delayed, which can add congestion and create additional challenges.

Traffic patterns also differ by direction. Southbound congestion often builds quickly but typically recovers. Northbound congestion tends to build more gradually, but once it forms, it can persist longer and affect more travelers over the course of the day. Operating the express lanes northbound during this phase helps limit those longer-lasting impacts and maintain balance across the corridor.

Staying informed

We encourage everyone to:

• Check the WSDOT mobile app or Travel Center Map for real-time conditions
• Explore options through Flip Your Trip, Sound Transit, and King County Metro

We’ll continue to monitor traffic daily and share updates weekly as this work continues. Thank you for adjusting, planning ahead and helping keep everyone moving safely while this critical preservation work gets done.