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Posted on: July 21, 2018

STREET IMPROVEMENT PROJECTS UNDERWAY

Homepage Highlight Street Projects

Street maintenance is one of the most important services a city can provide to protect property values and enhance the quality of life in a community. This summer, crews are starting work on this year’s street maintenance and rehabilitation projects. While specific projects are scheduled each year, every street is assessed and evaluated on an ongoing basis as part of a long-term, strategic approach to maintaining the city’s street infrastructure.  

These street improvements will include rebuilding a roadway in some cases, while other streets will undergo preventative maintenance that can extend the life of an existing road surface for up to 10 years. This allows the City to optimize its resources, while scheduling as many projects as possible.  

Residents will be notified before repair or maintenance work begins on a street. The following projects are scheduled for this year:   

Full-Depth Reconstruction
This process effectively provides for a new street—replacing the subgrade and base, before constructing a new surface. Streets slated for reconstruction include: 

·        Presidio Drive, from cul-de-sac end to Seco Drive

·        Sabine Drive, from Chiltipin Drive to Broadway Avenue

·        Georgia Place, from Broadway Avenue to Presidio Drive

·        Gulfton Drive, from Broadway Avenue to Colonial Street

·        Seagull Drive, from Sea Gate Drive to Sandpiper Drive

·        Sandpiper Drive, from Broadway Avenue to cul-de-sac end

·        Buddy Ganem Drive, from Wildcat Drive to Floerke Road 

Full-Depth Reclamation
Some streets will undergo full-depth reclamation. Similar to reconstruction, this process rebuilds worn-out asphalt pavement by “recycling” the existing roadway. Existing asphalt and base materials are pulverized using a specialized machine called a reclaimer, then used as part of the rehabilitation of the street. Reclamation is one of the most commonly used road rehabilitation methods and can increase the roadway’s lifespan for decades. Streets scheduled for full-depth reclamation are:

·        Devlin Drive, from Broadway Avenue to Colonial Street

·        Colonial Drive, from Broadway Avenue to cul-de-sac end

·        St. Charles Street, from Memorial Parkway to Memorial Parkway 

 Mill & Overlay
This maintenance technique removes the top layer of a street, then a new layer of pavement is put in place. This process can extend the lifespan of a street for 7-10 years. The following streets are scheduled for mill and overlay maintenance:

·        Sea Gate Drive, from Gulfton Drive to the end of the cul-de-sac

·        Comal Street, from Memorial Parkway to St. Charles Street  

Seal Coat Process 
Finally, numerous streets are slated for seal coat reconstruction. Seal coating is the application of asphalt emulsion, followed with an aggregate cover. This process can extend the life of a street from three to six years.  

The City of Portland has employed the latest technology using mobile cameras and sensors to provide data-driven information about the quality of Portland’s streets, rather than rely on visual assessments. That data is used to prioritize plans for the repair and maintenance of Portland’s streets and roadways. 

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