Community Corner
How Much Sound Will the Barrier Extension Keep Out?
Just how much noise can 2,000 feet keep at bay?
The aim of an extension of a noise barrier in Elkridge is to reduce noise levels by at least half for about 18 homes, according to the State Highway Administration.
Although a 7-decibel noise reduction is the minimum, the project aims for a 10-decibel reduction “where it is practical,” according to Heather Keels, Community Liaison for the SHA.
A 5 to 7-decibel reduction is “readily noticeable,” she said, while a 10-decibel reduction is “essentially perceived as being ‘cut in half.’”
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The overall aim of the 2,000-foot extension, (along Interstate 95, one mile north of MD 100 to Montgomery Road) is to reduce noise levels in the area to less than 66 decibels, Keels said.
That’s a reduction of 7 to 9 decibels for homes farther from Interstate 95, and a reduction of up to 15 decibels for the homes closest to the interstate.
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If the weather permits, the extension should be complete by September.
Related:
- SHA Extending Sound Barrier in Elkridge
- SHA: No Construction Money for Elkridge Sound Barrier
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