About the Project
Frequently Asked Questions
I-5 Southbound Closures Fall 2026
What exactly is closed and what is open during the 5-week closure?
- I-5 southbound is closed between I-405 and I-84
- This closure is all hours of the day from September 11 to early October
- One lane is maintained from the split with I-405 to the Broadway/Weidler offramp to provide access to the Rose Quarter events district, the Moda Center and the Oregon Convention Center
- I-5 northbound remains open at all times
Closed Ramps
- Onramp from Alberta St to I-5 SB: CLOSED
- Onramp from I-405 NB to I-5 SB: CLOSED
- Onramp from Greeley Ave to I-5 SB: CLOSED
- Onramp from Wheeler/Williams/Ramsay at the Moda Center to I-5 SB: CLOSED
- Offramp from I-5 SB to I-84 EB: CLOSED
- Offramp from I-5 SB to Morrison Bridge: CLOSED
Open Ramps
- Onramp from Rosa Parks Way to I-5 SB: OPEN
- Onramp from Going St to I-5 SB: OPEN
- Offramp from I-5 SB to Broadway: OPEN
- Onramp from I-84 WB to I-5 SB: OPEN
- Offramp from I-84 WB to Morrison Bridge: OPEN
Why is the I-5 Southbound closure happening in September?
I-5 Southbound is closed in the Rose Quarter area for up to five weeks beginning September 11, 2026 for structural repairs and maintenance. There are a few reasons why this time frame was selected:
- The work must be completed in a continuous period between holidays and the special events in the City.
- The construction work being done includes drying large amounts of concrete over multiple weeks and that requires weather that is not too hot and not too wet.
- The construction schedule includes work in progress that needs to be completed before these structural repairs can be made.
The September timeframe was selected because it is the only 5-week period that fits these scheduling limits.
How bad will traffic be?
Travel could take two to three times longer than usual. Congestion is expected to extend into Washington by the Interstate Bridge and onto local city streets.
We know this is going to be tough for travelers and businesses alike. The more people modify their travel plans, the better the system will function for everyone, including emergency responders and freight trucks. We’re urging travelers to plan ahead, leave early, adjust travel times if you can and consider options like carpooling or transit.
Why is this work needed?
This section of road was last replaced in 1985. It is well past its 25-year lifespan. The highway surface has potholes, cracks and damage. Conducting these repairs now helps to keep I-5 infrastructure in good repair and avoids expensive and more frequent emergency repairs in coming years.
For example, in spring 2024 a hole appeared just north of the project area requiring a full closure of I-5 southbound for emergency repairs during the afternoon rush hour. This kind of emergency closure would become more common if these kinds of repairs are not completed.
Why aren’t you leaving some lanes open or doing work on the weekend instead of closing I-5 southbound for weeks?
A continuous 5-week closure of I-5 was selected as the safest, shortest and most cost-effective closure option, resulting in the best road quality. In selecting our construction approach, the 5-week directional closure was compared to single lane closures for 4 months or weekend closures for 2 years.
Learn more about the closure options that were evaluated by viewing the I-5 Southbound Closure Decision Fact Sheet.
How will this closure impact emergency responders?
ODOT has been coordinating with emergency responders to make plans for the closure and be prepared for impacts. We will continue coordinating closely throughout the closure.
To avoid impacts to emergency response times, drivers should immediately pull to the right side of the road when they see flashing lights or hear a siren approaching, even if there is congestion, to allow emergency vehicles to reach their destination as quickly as possible.
The more people choose to adjust their travel times or choose other forms of transportation during the closure, the better traffic will be for other travelers and for emergency responders who need to get to incidents.
How does this fit into the larger Rose Quarter Project?
In addition to the critical repairs to I-5, the work is a steppingstone to building the remainder of the Rose Quarter Project and provides safety and traffic flow benefits to I-5 travelers.
How will staged tows work during the closure?
To prevent traffic backups, vehicles involved in an incident or stalled within the project boundaries will be towed by the project staged towing contractor selected by ODOT.
All tows taken by the staged towing contractor will be at the owner's expense.
What’s the best route for me to get from point A to point B?
As congestion will be hard to predict day to day during the closure, navigation apps such as Google, Apple, and Waze will be your best tool to determine your best and quickest route each day during the closure. We are also encouraging community members to shift to alternate modes of transportation during the closure when possible. If possible, consider carpooling, using public transit, and adjusting your travel time to avoid delays. We have created a travel resources page (https://www.i5rosequarter.org/closure-travel-resources/) to help people plan their trips.
Will the closure be complete in five weeks?
Any time we do construction like this, there’s always a chance for delays from weather or existing roadway conditions. Our goal is to complete the work as quickly as possible and as safely as possible.
We’ve built this schedule carefully, and crews will be working around the clock. Additionally, a mechanic will be on duty 24/7 in case of construction equipment breakdowns so that we can minimize any delay in progress. Repairs to equipment can start immediately so that crews can put it back to work as quickly and safely as possible.
We know how big an impact this closures has, and we’re doing everything we can to stay on schedule and reopen as quickly as possible.
How much could weather impact the closure schedule?
Light rain will likely not create any delay, while significant prolonged rain or severe weather could cause delays to construction.
There are several steps involved with the work and most are not impacted by rain. Concrete pouring and re-painting lane lines are the most sensitive to wet weather. The contractor has developed contingency plans to work through normal wet weather. The more severe the weather, the more delay it may cause. However, delays to construction may not translate to delays in the closure schedule, as the contractor has included buffer time in the closure schedule for possible weather events.
Why are you repairing just this section of I-5 bridge deck if all this area needs updating?
This kind of work is needed on other portions of our highway system. Engineers and planners have monitored this I-5 section closely for this type of road surface deterioration. There is a narrow window of time to restore the upper portion of the deck before the deterioration extends to the point of requiring a full replacement – which requires a longer closure to solve.
The funding is available now to complete this portion of work in the Rose Quarter. Next year, we will also be completing the northbound section with a similar closure. Many of our roads and bridges are in need of investment, but our state transportation funding isn’t keeping up with costs. Overdue infrastructure repairs are not unique to the Rose Quarter. This highlights the need for sustainable and reliable funding for transportation as more infrastructure across the state starts to show its age.
Why are ramps north of the work area closed?
Access to I-5 southbound from Alberta, Greeley and I-405 northbound has been limited to manage traffic flow and facilitate safe transitions by vehicles to the detour at I-405 southbound.
The Going on-ramp will remain open for freight access from Swan Island to the interstate system. Local access to Broadway will be maintained via a single lane from I-5 southbound.
What will the public see after the work is complete?
The new road surface will provide a smoother, safer ride, by addressing cracks and potholes on the highway. Similar to replacing the roof on a house, by completing this work now, we are able to avoid further damage and reduce the likelihood of disruptive emergency repairs. The work completed during the closure also creates the space needed to extend the I-5 south merging lane near the Moda Center to the Morrison Exit at 301.
Will there be effects to transit or bicycle and pedestrian routes?
- No bike routes will be closed during the closure. Pedestrians and bicyclists may experience higher traffic volumes on local streets as people use alternative routes.
- TriMet MAX will not be impacted by the closure, and TriMet has committed to operating double-car trains on every MAX line during the project. The MAX Yellow Line, providing north-south service parallel to I-5, will continue to arrive at stations every 15 minutes or better during the project. It serves two park and rides – Expo Center and Delta Park/Vanport. Other MAX lines serve park and rides at Parkrose and Gateway.
- TriMet bus service may be impacted by traffic congestion. The extra automotive traffic on surface roads may slow some bus service. TriMet encourages riders to plan ahead and track vehicles in real time.
- Portland Streetcar may experience some delays due to congestion on surface road routes.
- C-Tran is modifying its service to Portland to prioritize access to the Expo Center and Delta Park park and rides with connections to the Max Yellow Line. It is also modifying service times and some routes will be on detours for downtown Portland access due to anticipated delays. Riders should check C-Tran’s website for more info.
About the Project
What is the purpose of the I-5 Rose Quarter Improvement Project?
The purpose of the I-5 Rose Quarter Improvement Project is to improve safety and congestion where three major interstates converge and to support reconnecting the Albina neighborhood.
This 1.8-mile stretch of highway is the only two-lane section of I-5 in a major urban area between Canada and Mexico. The project addresses the critical need to keep Oregon's people and economy moving.
The project is needed to address the following issues identified within the project area:
- The top traffic bottleneck in Oregon and the 27th worst freight bottleneck in the nation as of 2025.
- Up to 12 hours of congestion each day.
- A crash rate 3.5 times higher than the statewide average on I-5.
- A lack of full shoulders in key areas of I-5 to clear crashes and to provide emergency vehicles access or movement through traffic.
- A lack of neighborhood connections and undersized, incomplete and inaccessible sidewalks and crossings for people walking, biking and rolling through the surrounding local streets.
These safety and congestion concerns contribute to Portland having the 17th worst traffic and fourth most daily congestion of the 49 most populous U.S. metros as of 2025.
What are the project benefits?
Expected project benefits include:
- Smoother traffic flow with space to merge on and off I-5.
- Faster emergency response times with space to navigate to or around incidents.
- Reduced crashes on I-5 by up to 50%.
- Predictable travel times on I-5 for people, services and goods.
- Safer local streets with greater visibility, protection and access for people walking, biking and rolling.
- Restored local street network over I-5.
- Opportunities for small businesses through contracts that build long-term career prospects.
- A new highway cover over I-5 that can accommodate new community development.
How will the project improve safety for pedestrians and bicyclists?
Local street improvements will make streets safer by offering greater visibility, protection and access to people walking, biking and rolling. The project includes improvements on local streets for all users, such as better lighting and curb ramps that comply with the Americans with Disabilities Act (ADA). The project will improve bike facilities and replace existing bike lanes with either buffered or protected lanes. The addition of a car-free bridge over I-5 will enhance safety and improve access for pedestrians and bicyclists near the Moda Center.
Why has ODOT prioritized the historic Albina community?
The project area sits in the heart of the historic Albina neighborhood. Albina was a thriving community and business district for Black Portlanders until several major urban renewal and development projects, including the construction of I-5, severed and displaced the community in the 1960s. Because past decisions about public and private development in the historic Albina neighborhood so negatively impacted Black Portlanders, ODOT is committed to engaging with and prioritizing the voices of the historic Albina community.
Construction
When will construction begin?
ODOT broke ground on the first phase of the project in summer 2025.
What is being constructed first?
Construction starting in 2025 includes stormwater improvements, bridge preservation and seismic resiliency work and extension of the southbound auxiliary lane at I-84. Auxiliary lane work includes shifting the existing crash barrier located between the I-5 southbound mainline and the I-84 off-ramp a few feet west, creating more space for travelers to merge. Early phase work (referred to as Phase 1A) is expected to be completed toward the end of 2026. Starting construction with these shovel-ready components preserves existing infrastructure and improves water quality, gets the construction community to work in 2025 and reduces the effects of inflation.
What can drivers expect during I-5 closures in summer and fall of 2026 and 2027?
In July 2026, there was a 14-hour overnight closure of I-5 in both directions through the Rose Quarter to allow crews to install a sign structure.
In September 2026, all lanes of I-5 southbound through the Rose Quarter near Moda Center will be closed for up to 5 weeks starting September 11 for structural repair and maintenance of I-5. Crews will be replacing the rutted, cracked and potholed surface of I-5 with new concrete. Significant delays and unpredictable travel times are expected. Travelers should plan ahead, use alternate modes of travel and adjust travel times.
In summer 2027, all lanes of I-5 northbound through the Rose Quarter near Moda Center will be closed for up to 5 weeks for similar structural repair and maintenance work. Significant delays and unpredictable travel times are expected. More information about the I-5 northbound closure will be available in spring 2027.
To stay informed about upcoming construction and traffic impacts, sign up for email and/or text alerts.
Project Funding
What is the project cost and what project funding is available?
The current cost estimate for the I-5 Rose Quarter Improvement Project is between $1.96 billion –$2.08 billion. This is based on a risk-based estimating process, current inflation assumptions, project schedule, and real-time market data.
The project was awarded federal Reconnecting Communities and Neighborhood grant funding in spring 2024.
Of the federal funding granted, $67.5 million for design and utility relocation has been obligated for spending on the project.
Sufficient funding is available to complete Phase 1A construction and design of Phase 1.
ODOT and partners – the City of Portland, Metro, Albina Vision Trust, and the Portland Trail Blazers (Rip City Management) – are committed to completing the project in its entirety. The project team is committed to transparency, rigorous risk management, and real-time estimating practices to manage project costs moving forward.
Project Design
How has the project met federal environmental standards?
On March 12, 2024, the Federal Highway Administration issued a Finding of No Significant Impact based on the required environmental review for the project. This federal decision approves the project to proceed into final design and construction.
Click here to find more information about the environmental review process and documentation.
Will the project increase the number of lanes on I-5? Will it expand the highway?
There are sections of I-5 where the width of the highway will change from current conditions to improve travel safety and reduce congestion – some sections will become wider, some will stay the same, and some will become narrower. The project will add one new auxiliary lane in each direction on I-5 between I-84 and I-405, which serve as ramp-to-ramp connections. The project will also widen shoulders along this same segment of I-5. Although ODOT will be adding auxiliary lanes, the project will not be adding additional through lanes to the corridor; there will still be the two existing through lanes in each direction north and south of the project area.
Auxiliary lanes provide drivers more time to merge, improving mobility while reducing crashes. Wider shoulders provide space for disabled vehicles to clear the highway safely and give emergency service vehicles quicker access to incidents. In total, the project improvements are expected to reduce crashes by up to 50% and save drivers nearly 2.5 million hours of travel time a year.
To learn more about expected changes in highway width at multiple locations throughout the project area, view our Highway Width Fact Sheet.
Will changes in highway width affect property owners?
ODOT owns most of the land needed to expand the highway at locations where widening is required. There are several affected private properties that will likely be needed for purposes of construction. ODOT would purchase these properties from the owners and any affected businesses would be fully compensated and relocated under the federal Uniform Act. None of these properties are minority-owned, and no homes would be impacted. Additionally, there are eight “Personal Property Only” displacements that will be required. These are considered moveable objects that are not affixed to any property, such as a sign, billboard, dumpster etc. ODOT continues to coordinate with all affected property owners.
Click here to view a visual representation of the proposed project design.
How will the project impact Harriet Tubman Middle School?
ODOT works collaboratively with Portland Public Schools (PPS) to keep the school district apprised of the latest data and developments regarding the project.
PPS is leading a separate effort to relocate Harriet Tubman Middle School to a new location in the area and away from the I-5 corridor. This move is not an outcome of the I-5 Rose Quarter Improvement Project; the planned move came about because $120 million in funding for relocating the school was approved by the state legislature. Although ODOT is not directly involved in this effort, we support PPS’s process to address concerns related to the school being adjacent to I-5. PPS is exploring possible new locations and has the latest information.