Looking for a general rule-of-thumb to produce very generic costs for supply/ install 30" CS water line. These numbers will be introduced into conversations as comparative values only (new vs. repair). Typial run lengths approx. 5000 FT.
Well call the local supply house for the cost per foot. 8 feet deep with 1:1.5 v:h, excavation will be 5 cu. yds per linear ft.Installation 2hours per pipe segment. Figure it out. Don't lowball the client.