Two existing water pipes failed under the main entrance of The Penn State Children’s Hospital in Hershey, PA. Limited space at the entrance as well as within the mechanical room tie in point limited the trenchless solution to pipe jacking short lengths of casing pipe. Sections of existing ductile iron had to be cut from within the jacked pipe to push forward. New carrier pipes were installed through the casing using structural steel and the annular space was filled with a lightweight cellular grout.
64 LF of 48” Steel Casing with 2 – 8” Ductile Iron Pipes
Loose gravel, sand and silt
- Pipe Jacking and Tunneling
- Pipe Rehabilitation