Collapsing Infrastructure - the Power of Concentrated Stormwater Runoff in Streams

April 28, 2011: Highly Exposed Sewer Pipe was identified
by AWS, in the Takoma Tributary of Sligo Creek in
Prince George’s County, Maryland.
 

August 9, 2011: This pipe was fine or there was no change
until this time.

August 17, 2011: A portion of concrete was peeled off.