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  • Jaca Sierra – Geotechnical Engineers
    Over 45 dedicated professionals, including 5 geotechnical engineers, 1 laboratory engineer, and 1 geologist Our field operations consist of a fleet of 8 drill rigs and 5 drilling crews with over 25 years of experience
  • About Us – Jaca Sierra
    J S was established in Puerto Rico in 1967 by Engineers Carlos R Sierra Silva and Luis Jaca Méndez Nowadays it is one of largest geotechnical services firm in the Caribbean covering the island of Puerto Rico, U S Virgin Islands, British Virgin Islands, Lesser Antilles and other locations within the Caribbean
  • Contact – Jaca Sierra
    Contact Tel: 787-761-2570 Fax: 787-748-6970 Email: contact@jacasierra com Location Jaca Sierra Engineering, PSC Road 850 Km 0 2 Las Cuevas Ward, Trujillo Alto, PR 00976
  • Services – Jaca Sierra
    Jaca Sierra Our Services We customize our services across all phases of your project—from concept through completion
  • Geotechnical Construction – Jaca Sierra
    Since 1967, Jaca Sierra Engineering, PSC has been an industry leader in providing geotechnical investigations and consulting for dealing with challenging subsoil conditions in Puerto Rico and the Caribbean Region Within the past 10 years, Jaca Sierra has ventured into completing projects as geo-structural construction specialty subcontractor Most of these projects have been performed as
  • Projects – Jaca Sierra
    JACA SIERRA Our Projects Our Projects Our firm has completed a variety of projects in Puerto Rico as well as in most of the Caribbean Islands These projects range from consulting, soil and material testing, underground utility surveys, geotechnical construction, structural surveys, quality control inspections and more
  • About Us – Jaca Sierra
    Jaca Sierra Testing Laboratories was established in 1967 by Engineers Carlos R Sierra Silva and Luis Jaca Méndez Nowadays it is one of largest geotechnical services firm in the Caribbean covering the island of Puerto Rico, U S Virgin Islands, British Virgin Islands, Lesser Antilles and other locations within the Caribbean J S services reliability is based on experience, training and
  • Soil and Construction Material Testing - Jaca Sierra
    Our construction material testing laboratory has been in operation since 1967 Our main laboratory is located in Trujillo Alto, Puerto Rico (South East Metropolitan Area of San Juan) We also have a field office at Ponce (South Coast, PR) and Mayaguez (West Coast, PR) Depending on the project size, we may be able to set up field offices equipped with testing equipment anywhere on the island
  • Geotechnical Engineers Soil testing Laboratories :: Puerto Rico . . .
    JACA SIERRA TESTING LABORATORIES Geotechnical Engineering Services in Puerto Rico a soil and material testing laboratory and geotechnical engineering firm based on Puerto Rico, established in 1967
  • Notable Projects – Jaca Sierra
    January 30, 2023 United States Courthouse, Ron De Lugo Federal Building, St Thomas, USVI





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