Mill Creek Awards Contract for 35th Ave

City of Mill Creek Awards Construction Contract for 35th Avenue SE Reconstruction
Posted on 04/25/2018
An image of the road closed on 35th Ave SEA much needed project to rebuild 35th Avenue SE in Mill Creek passed a major hurdle this week when the Mill Creek City Council approved the project’s construction contract with Harbor Pacific Contractors Inc. at its April 24 meeting. The project contract is for $4.692 million.

“For more than five years, we have been planning for the reconstruction of 35th Avenue,” said City Manager Rebecca Polizzotto. “Years ago, the flooding across 35th Avenue seemed like an insurmountable problem. Yet, this spring we begin construction. It is the largest project the City has ever managed and there is a sense of anticipation by the community as the work commences. With the quality of staff we have at the City, and under the direction of our new Public Works and Community Development Services Director Gina Hortillosa, I am confident that we will successfully deliver the solution.”

The total cost is estimated at approximately $5,303,300. The State Department of Transportation office has included a $5.25 million funding package for this project by the City of Mill Creek. Snohomish County also provided a $50,000 small capital projects partnership grant.

“The mayor took a leading role in securing funding for the City’s most significant project to date,” said Polizzotto. “We originally had budgeted that $1.9 million in City funds would have to be used toward the project. Due to the mayor’s help securing alternate funding, we are down to about $3,300 in funding from the City.”

Engineering costs of approximately $484,000 were paid for by the City through its capital funds.

35th Avenue SE is a three-lane minor arterial in Mill Creek that carries approximately 15,000 vehicles per day. The road was widened by Snohomish County in 2003 by using lightweight fill on top of a large peat deposit. The road has been continually settling since annexation by the City in 2005. The rate of settlement has slowed, but portions of the road have settled over two inches in the past three years and two feet over the past 10 years.

One of the biggest areas of settlement is over the Penny Creek crossing between 144th Street SE and 141st Street SE, which also has the deepest deposit of peat material as a base. The water level in the surrounding wetlands has also increased due to several factors, including downstream beaver activity. The rising water combined with a sinking roadway has resulted in several road closures over the past few years due to flooding.

The reconstruction project will fix the road between 141st Street SE and 144th Street SE to eliminate flooding and associated road closures. Work includes driving approximately 500 pin-piles through the peat into good bearing soil, constructing a concrete slab on top of the pilings, and then reconstructing and elevating the roadway on top of lightweight concrete fill. The project will raise the road elevation up to four feet above the existing roadway elevation.

During construction, 35th Avenue SE will be closed between 141st Street SE and 144th Street SE for approximately eight months.

Traffic that normally utilizes 35th Avenue SE in Mill Creek will be detoured via 132nd Street SE and SR 527 (the Bothell-Everett Hwy). The City strongly discourages the use of side roads off 35th Avenue SE for unofficial detour routes, as these are residential neighborhoods not built for arterial traffic. The side roads should only be used by local access vehicles. Local access means you live in one of the neighborhoods adjacent to 35th Avenue SE, including Highland Trails, North Pointe, Silver Crest, and Silver Glen.

“We encourage our community to be respectful of the local neighborhoods along 35th Avenue and follow the designated detour route,” said Police Chief Greg Elwin. “This will help ensure the safety of those who live in the neighborhoods – including children who play in the area.”

The project schedule will be finalized following a preconstruction meeting in early May with the contractor. The construction is slated to be substantially complete and open to the public in October 2018. However, the final asphalt application may not occur until spring 2019.

Construction may occur between 7 a.m. and 9 p.m. Monday through Friday, or between 8 a.m. and 9 p.m. on weekends. Equipment is anticipated to run during normal working hours of 7 a.m. to 7 p.m. Monday through Friday for the majority of the project.

Additional information about the 35th Avenue SE reconstruction project is available at Community members can sign up for email notifications online. A dedicated project hotline, 425-582-6070, will include recorded updates.