This planned community in San Marcos, Texas allowed MLA Geotechnical to perform several unique design and testing protocols for the variable soil conditions of the area during design and construction, including the new $11 million elementary school. Both geotechnical and quality control testing services were performed for this new 92,000 square foot school. All of the geotechnical recommendations were provided under a lump sum contract. No addenda were required during completion of the geotechnical study. The testing services competitive bid was won and all work was completed with a minor cost overrun that did not precipitate the need for an addendum to the original contract.

The geotechnical investigation consisted of drilling 16 borings across the site to varying depths and performing laboratory testing on representative samples. Laboratory testing including Atterberg limits, grain-size analysis, moisture content tests, and compressive strength tests on representative soil samples. Geotechnical recommendations for foundation and pavement designs were developed from the field and laboratory data. Recommendations were included for reduction of potential vertical movement due to swelling clay, bearing stratum and bearing capacity for pier foundations, and pavement thickness design.

In addition, MLA Geotechnical acted as the quality control inspectors for the new project. Construction materials testing duties for the building included steel reinforced pier and concrete inspections, subgrade and building pad density compaction testing, steel reinforcement foundation pre-pour and concrete, steel framing inspection and mortar, and grout masonry testing. Site development testing included subgrade and base course density compaction testing for parking and entranceways, HMAC bulk sampling, testing and coring, and steel reinforced concrete paving and concrete testing.

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