Met-Ed 967 Line

Wagman’s Geotechnical Construction group was contracted for ground improvements consisting of compaction grout. The scope of the project consisted of 142 primary grout points with 3,371 LF of drilling and 76 secondary holes with 2,503 LF of drilling at five different power pole locations. The objective of the project was to improve the ground conditions for drilled shafts to install new power poles. Due to overhead power lines, the drilling had to be completed with a low headroom drill to be OSHA compliant underneath the lines. To be environmentally friendly, equipment traveled on a matted roadway to each structure. All drill cuttings and excess grout were contained in dumpsters. Drilling depths at each structure varied due to karst limestone conditions, from 20’ up to 81’ which made for difficult drilling. In addition, the hardness of the rock slowed the drilling rates. There were additional secondary holes added at certain structures due to the quantity of grout take in the primary holes.