Major Construction Coming to SR 510/Marvin Road in Lacey

Submitted by Washington State Department of Transportation

Southbound Interstate 5 travelers in Lacey are encouraged to prepare for a detour or alternative route as crews transform the existing State Route 510/Marvin Road overpass into a diverging diamond interchange. The Marvin Road overpass itself also will see an around-the-clock lane reduction. These changes could occur as soon as the evening of Monday, April 1.

I-5

Southbound I-5 drivers who want to turn left onto Marvin Road will instead turn right and follow a detour via Hogum Bay Road Northeast, Willamette Drive Northeast and back to Marvin Road. Southbound I-5 drivers heading towards Hawks Prairie also can take Nisqually exit 114 as an alternate route.

Marvin Road

Drivers also can expect the Marvin Road overpass, which typically sees 34,000 vehicles per day, reduced to one lane in each direction.

Travelers should expect heavier-than-normal traffic along the routes, alternate routes and across the Marvin Road overpass during the work.

To help avoid congestion and keep traffic flowing travelers can:

  • Allow extra time or take alternate routes.
  • Reschedule discretionary trips.
  • Travel early in the morning or later in the evening.

The temporary detour and Marvin Road lane reduction, which will continue for at least two months, will allow crews to rebuild the I-5 southbound off-ramp to accommodate the future diverging diamond interchange.

Additional information about this project available at I5exit111.com.

Featured photo credit: Ashley Berschauer

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