What type of material is the existing pipe?
(clay tile, cast iron, PVC, Polyethelene, concrete, transite or other?)
If it is concrete, is it steel reinforced?
What is the type of existing utility? (water, gas, sewer or other)
What is the existing pipe inside and outside diameter?
Does the installation call for HDPE pipe?
What is the inside and outside diameter of the new pipe?
What is the SDR rating of the new pipe?
How deep is the existing service pipe?
Very Deep lines may be surrounded by material with limited compressibility.
How long is the demo section?
Can an entrance pit be dug at one end?
What is the soil surrounding the existing pipe? I.e.sand bedding, trenched in rock, caliche, clay or best guess.
What is the N value? How easy will the soil be to compress?
Is equipment available to excavate the site including shoring of pit?
Is existing utility bypass equipment required and available?
Is there means available to video tape the interior of the existing pipe for condition and placement of lateral connections?
Is a copy of the video tape available?
Has Diggers Hotline been contacted?
Is the job laid out to burst upstream? If not can it be changed?
Can a diagram of the job layout be obtained for review?