Frontop completed the independent design check in August, 2019 for the flyover of the Churchill Roosevelt, Southern Main Road-Churchill Roosevelt Highway Interchange, Trinidad and Tobago. The general contractor is China Railway Construction (Caribbean) Co. Ltd. The detail of check included the all drawings (Footings,Abutments and wing walls, piers, bearing layout, details and girder layout, and expansion joints), the general check also consists of the retaining walls, highway design,  substructures, interaction and earthquake loads according to AASHTO common engineering practice,  allowable loads for foundation and piles, settlement and differential settlement of the foundation, liquefaction analysis and slope stability of the abutments. ​

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