Blasting near buried gas pipelines is a common occurrence, and the blast-induced stresses can be significant relative to normal operational stress limits on a pipeline. Use of explosives for trench blasting in construction of pipelines adjacent to older ones, for strip mining, for highway construction, for quarry blasting, for seismic exploration, for utility construction, etc., in the vicinity of in-service pipelines occurs quite frequently. Consequently, pipeline companies need effective engineering procedures to estimate blast-induced stresses for use in developing realistic blasting guidelines and criteria for specific blasting situations near their pipelines. Blasting activities without limitations would certainly not be safe realistically. This research document records and analyzes data from actual pipeline conditions during blasting in rock for highway construction permitting comparison between experimental and actual results. Continuation of earlier work that developed equations and methods for estimating pipeline stresses for a variety of explosive sources detonated simultaneously in close proximity to pipe.