National Public Works Week is an annual event that raises awareness about how public works departments keep cities and towns across the country functioning and safe.
Bryan Woo (4-2) pitched six shutout innings for the Mariners.
Prices are forecast to reach their highest level for the holiday weekend in four years.
The benefits will become available starting July 1.
The health department says the risk to the public remains very low.
The crash sent a second driver to the hospital.
The Sounders fall to 4-1-1 at home and L.A. improves to 3-3-2 on the road.
Mariners third baseman and top prospect Colt Emerson made his major league debut and reached base for the first time.