Read more about the article How Three Conical Weep Hole Filters Fixed GWMP Bridge Drainage Woes
Sinkhole being excavated on a George Washington Memorial Parkway Bridge Approach caused by poor drainage and soil loss.

How Three Conical Weep Hole Filters Fixed GWMP Bridge Drainage Woes

Poor Bridge Drainage led to a sinkhole at the GWMP Arlington Bridge Approach. Three conical weep hole filters restored effective drainage

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