The growing business district along 172nd Street NE in Arlington, looking west toward I-5. At lower left is the construction site of a new Amazon fulfillment center. (Chuck Taylor / Herald file)

The growing business district along 172nd Street NE in Arlington, looking west toward I-5. At lower left is the construction site of a new Amazon fulfillment center. (Chuck Taylor / Herald file)

Marysville-Arlington road improvements won’t happen at once

Traffic improvement projects near the Cascade Industrial Center will take shape over the next decade.

MARYSVILLE — Businesses coming to the Cascade Industrial Center are expected to generate more than 10,000 daily trips, and some residents are wondering what improvements will be coming to the already-strained roads.

“I got my driver’s license in 1958 and the roads are basically the same as (they) were then,” said Marysville resident Rodney Elvrom.

City Engineer Jeff Laycock said some of the first major roadway improvements in the area will start to take shape over the next decade.

Developers of NorthPoint, a nine-building light-industrial development just south of Arlington Municipal Airport, bordered by 51st Ave Northeast, 172nd St Northeast and a railroad line, will be required to “alleviate the effects of the project that they’ll have on the transportation network,” said Haylie Miller, community development director for the city of Marysville.

A December 2020 traffic impact analysis, conducted by Gibson Traffic Consultants for the cities of Arlington and Marysville, estimates that nearly half of the trips generated by the industrial complex will travel along 172nd Street NE, 23% will use 152nd Street NE and about 20% will use 51st Avenue.

Work to mitigate increased traffic will begin with the developer’s projects — widening 51st Avenue into a three-lane road and 152nd Street into five lanes, Laycock said. Traffic lights will be added to the intersections that serve as public access to the businesses, including 160th Street Northeast at 51st Avenue Northeast and 152nd Street Northeast at 59th Avenue Northeast.

Sidewalks — something residents including Elvrom cite as essential — will be added to 51st, in addition to bike lanes.

Today “people at the new apartment complex can choose to walk 50 extra blocks or chance going eight blocks, where there’s no shoulder,” Marysville resident Arnie Diel said.

While the developers complete necessary improvements to aid the flow of traffic, the city will convert the 156th Street NE overpass into an I-5 interchange. The project, fully funded under the Connecting Washington Program, is slated to begin in 2025.

The project residents are most concerned with, however, won’t be on the horizon for a few years.

The Washington State Department of Transportation is responsible for upcoming improvements along 172nd Street, also known as highway 531, which were delayed in part by the pandemic.

“The full effect of delays caused by the pandemic is not known at this time,” said WSDOT spokesperson Meggan Carrigg Davidson in an email.

When construction begins, WSDOT will widen a two-mile stretch of Highway 531 from 43rd Avenue Northeast to 67th Avenue Northeast. Roundabouts will be added at 43rd, 51st, 59th and 67th avenues northeast.

The goal is to ease congestion and offer safer access to the highway for trucks, cars, pedestrians and bikers, but residents worry it’s not soon enough.

“Up by the Arlington airport is backed up clear to the freeway all the time,” Elvrom said.

In a March 19 memo, traffic consultants wrote that the Cascade Industrial Center is estimated to be 65% occupied by 2030, meaning thousands of trips will be made during peak hours.

“It’s gonna be built out in sections, not everything will happen at once,” Laycock said. “The city is working with the development community to make sure the improvements are being made.”

Isabella Breda: 425-339-3192; isabella.breda@heraldnet.com. Twitter: @BredaIsabella.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Logo for news use featuring Snohomish County, Washington. 220118
Health officials: Three confirmed measles cases in SnoCo over holidays

The visitors, all in the same family from South Carolina, went to multiple locations in Everett, Marysville and Mukilteo from Dec. 27-30.

Dog abandoned in Everett dumpster has new home and new name

Binny, now named Maisey, has a social media account where people can follow along with her adventures.

People try to navigate their cars along a flooded road near US 2 on Wednesday, Dec. 10, 2025, in Sultan, Washington. (Olivia Vanni / The Herald)
Temporary flood assistance center to open in Sultan

Residents affected by December’s historic flooding can access multiple agencies and resources.

Logo for news use featuring the Tulalip Indian Reservation in Snohomish County, Washington. 220118
Teens accused of brutal attack on Tulalip man Monday

The man’s family says they are in disbelief after two teenagers allegedly assaulted the 63-year-old while he was starting work.

A sign notifying people of the new buffer zone around 41st Street in Everett on Wednesday, Jan. 7. (Will Geschke / The Herald)
Everett adds fifth ‘no sit, no lie’ buffer zone at 41st Street

The city implemented the zone in mid-December, soon after the city council extended a law allowing it to create the zones.

A view of the Eastview development looking south along 79th Avenue where mud and water runoff flowed due to rain on Oct. 16, 2025 in Snohomish, Washington. (Olivia Vanni / The Herald)
Eastview Village critics seek appeal to overturn county’s decision

Petitioners, including two former county employees, are concerned the 144-acre project will cause unexamined consequences for unincorporated Snohomish County.

Snohomish County commuters: Get ready for more I-5 construction

Lanes will be reduced along northbound I-5 in Seattle throughout most of 2026 as WSDOT continues work on needed repairs to an aging bridge.

Logo for news use featuring the municipality of Snohomish in Snohomish County, Washington. 220118
Snohomish man held on bail for email threat against Gov. Ferguson, AG Brown

A district court pro tem judge, Kim McClay, set bail at $200,000 Monday after finding “substantial danger” that the suspect would act violently if released.

Kathy Johnson walks through vegetation growing along a CERCLA road in the Mt. Baker-Snoqualmie National Forest on Thursday, July 10, 2025 in Granite Falls, Washington. (Olivia Vanni / The Herald)
Activism groups to host forest defense meeting in Bothell

The League of Women Voters of Snohomish County and the Pacific Northwest Forest Climate Alliance will discuss efforts to protect public lands in Washington.

Debris shows the highest level the Snohomish River has reached on a flood level marker located along the base of the Todo Mexico building on First Street on Friday, Dec. 12, 2025 in Snohomish, Washington. (Olivia Vanni / The Herald)
SnoCo offers programs to assist in flood mitigation and recovery

Property owners in Snohomish County living in places affected by… Continue reading

The Naval Station Everett Base on Wednesday, Oct. 23, 2024 in Everett, Washington. (Olivia Vanni / The Herald)
Rebooted committee will advocate for Naval Station Everett

The committee comes after the cancellation of Navy frigates that were to be based in Everett.

Beds at the east Everett cold weather shelter on Tuesday, Feb. 11 in Everett, Washington. (Will Geschke / The Herald)
Get your hats and gloves out, Snohomish County

Nighttime temps will drop below freezing through the weekend, the National Weather Service said.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.