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Rock Bolts – We have installed thousands of both epoxy resin or cement grouted rock bolts. Typical is a recently completed project at the Mpls/St. Paul Airport where we installed over 400 rock bolts.
Line Drilling – We recently provided over 30,000 lineal feet of line drilling at the Minneapolis/St. Paul International Airport where a vertical excavation was required in limestone bedrock for the new Green Concourse. This was under extreme schedule compression.
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