They are planned for stable ground.
They are usually less than 5 ft deep.
Sloping is required instead of shoring.
Shielding is required instead of shoring.
Excavator with carbide tipped breaker
Vermeer trencher with carbide tipped teeth
Flow line only
The undercut for bedding material
Off-set of flow line
Cut and fill
Consult engineer or inspector to review before cutting
Calculate the flow line from the surveyor's off-set
Cut exactly where surveyor has indicated on his stakes
Add the thickness of pipe and bedding material to cut
On all pipes
Larger pipes only
Smaller pipes only
Depends on engineer's specifications
When not in use
End of week
End of shift
None of the above
Smaller pipes do not require as much inspection and testing.
Smaller pipes can always be moved by hand.
Smaller pipes can be transferred directly from boom truck into trench.
All of the above
To connect electrical utility connection.
It is not required to run wire along service line.
It is necessary to feed electrical water valve along service line.
Line can later be detected by metal detector.
Most service pipes are made of polyethylene or type K copper.
Most service pipes are made of clay.
Most service pipes are made of cast-in-place concrete conduits.
Most service pipes are too deep to be detected without wire.
Main strap connection
Nothing. New cannot be connected to old until approved independently.
Connected by pipe with a blowoff on old side and a blowoff on new side
Connected by a strap saddle.
Connected by a temporary pressure release valve.