Bryn Mawr Sewer Repair/Storm Water Improvements/ Stream Restoration
These young homeowners bought a beautiful house in Bryn Mawr that came with a few surprises. First, the sewer pipe that exists the house crosses through Darby Creek at the rear of the property through a concrete encasement that had settled and shifted, breaking the pipe, resulting in years of sewage contamination of the creek. The settled encasement also altered the course of the stream and caused erosion of the stream banks.
We set up a temporary pump bypass of the stream, exposed the broken pipe, removed tons of contaminated soil, installed a new sewer pipe built into a new concrete encasement, and restored and stabilized the stream banks.
The homeowners also experienced storm water pouring down the driveway in heavy rains, causing water to enter the house over the front door sill. We designed and installed a storm water collection system consisting of 2’x2’ concrete inlet boxes in the driveway, Belgian block curbing along the driveway, and a properly sized main storm water drain pipe with downspout connections to the rear of the property.
Click on a photo below to enlarge.
Excavating and exposing the broken sewer pipe, and removing contaminated soil from years of leakage
Building the new concrete form for the new concrete encasement
Installing the new sewer pipe
Connecting the new pipe to the existing pipe from house
Backfilling around the concrete form
Using a concrete pump truck to fill the form for the new encasement around the new sewer pipe
Pumpin over 20 yards of concrete to build this massive pipe encasement
Connecting the new sewer pipe to the manhole across the stream
Installing the driveway drains, downspout connections, Belgian block curbing, and new storm sewer drain piping
Final results- a peaceful waterfall, restored stream banks, and 100% sewage-free!!