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Old 07-23-2010, 03:49 PM
 
703 posts, read 2,945,261 times
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I'm curious to know how effective these sound barrier walls really are? Do you or someone you know live directly behind one of these walls? Do they do a decent job at blocking the bulk of highway noise? I'm specifically referring to the ones on I-270 (more specifically right before Exit 5 on SB 270).
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Old 07-27-2010, 10:18 PM
 
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Are you talking about the Fallsmead neighborhood/area? Used to run through there for cross country practice in high school all the time and never thought it was especially loud. That may be because the highway is a bit above the actual neighborhood on that side. I've also biked through there, and then over that pedestrian bridge to the other side of 270 at Rt 28, and I thought the sound of the traffic was significantly louder in the neighborhood on the other side, maybe because you are at a higher level and can see down onto the highway. But at any rate I wouldn't expect the sound wall to completely take away the sound of living next to a highway.
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Old 07-28-2010, 02:44 PM
 
Location: Washington, DC
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I have a close friend who has lived near the I-270 barriers at exit 6 since 2003. When in her home and backyard, I have never noticed any traffic noise at all. I'm amazed by how well the barriers work.
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Old 07-28-2010, 06:24 PM
 
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I had a friend who had 495 in his backyard and it was very loud in the backyard, not so much in the front yard. You couldn't hear it in the house.
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