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Home » News » Sound barrier wall integrates with retaining wall to save space on site

Sound barrier wall integrates with retaining wall to save space on site

June 4, 2018


AIL Sound Walls Team was selected to design and supply a 1700' sound barrier for a residential project bordering a commuter rail line in College Park, Maryland. The developer, Woodlawn Development Group, was keen to maximize the useable building space, so this project featured various foundation or footing scenarios in different sections to help with that.


We only became involved after a longer project development cycle, where the wall was originally planned to be a wooden sound barrier on top of a concrete block retaining wall. In the end, our lightweight PVC solution won out. Perhaps it was that “lower-installed costs” thing again.

We worked very closely with the project partners to develop the best solution for our sound barrier to integrate with a concrete retaining wall along some sections. Other sections were sound-wall-only and there was also a section built on helical pile cap foundations.

We also helped the project team work through the approval process with the County. And, once construction was underway, an AIL Sound Walls Representative was on-site to handle any complications.

residential-sound-barrier-walls sound-walls-for-residential-neighbourhoods
residential-sound-barrier-wall rail-sound-barrier-walls

It seemed that as soon as sections of the sound barrier wall were completed, lots were being turned over to builders to get started. Post project feedback from Woodlawn, has been very positive.

Another great project for us in the DC area 
This development and sound barrier wall is located at Greenbelt Station, and is actually being installed right across the WMATA/CSX tracks from our Greenbelt Test Track project that we did with Big R Bridge a couple of years ago.

Project at a glance:

Project Name: Greenbelt Station
Location: College Park, Maryland
Owner: Woodlawn Development Group   
Engineer: Geo-Technology Associates, Inc.   
Contractor: Hercules Fence  
Product: AIL Sound Walls, Tuf-Barrier (Reflective) / Retaining Wall
Application: Residential/Rail
Dimensions: Length 1,700', Height 13'-18'

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BC railway sound barrier turns into a real tree-hugger »