According to information from the WSDOT Noise Discipline Report — Final, Dec. 11, 2018, for the SR 14 – I-205 to SE 164th Avenue Auxiliary Lanes project, truck traffic at 90 decibels at 25 feet (page 10) will drop by three decibels when distance increases from 50 to 100 feet (page 11). The Environmental Protection Agency has established a protective level of 70 decibels. In order to achieve reduction to 70 decibels, you would need a minimum distance of 300 feet.
We live about 100 feet from the Highway 14 fence line and can clearly see the road surface and vehicles. The fence to the current highway fog line is less than 60 feet. With the addition of two more westbound lanes, that distance will be substantially reduced.
A noise wall for Fairway Village seems to be the only logical solution.
