Gas Pipeline Design
Halff provides engineering design services including the relocation of existing transmission and distribution pipelines along with pig launchers and receivers for integrity purposes. Halff provides bore calculations and profiles, purge procedures, purge calculations, welding procedures and stress calculations.
Halff prepares SWPPP and U.S. Army Corps of Engineers permits and employs subsurface utility engineering (SUE), easement research and surveying services. Halff understands the importance of keeping pipelines in service during construction. We design connections utilizing double stopples with an appropriately sized bypass to keep the gas flowing at all times.
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