Project Overview: Foligno-Sestino Pipeline (Lot 3) – RTI MAX STREICHER, ICOP, Batitunnel
The Foligno-Sestino 48” Pipeline (Lot 3) represents a critical segment of the “Adriatic Line”, the strategic initiative to bolster Italy’s energy security and facilitate the transition towards a decarbonised future. This 30 km section (with n. 2 block-valve stations) crosses the Apennine mountains reaching an elevation of 1,000 m a.s.l.
The construction in mountainous environments entails a few challenges due to the terrain: access in isolated areas, work on steep, rocks excavation as well as harsh meteorological conditions in winter. To face that and work with the highest safety standards, several provisional works such as new access ways, soil levelling and reinforcement, pipes lay down with sleds and winches, restraint systems for sidebooms and excavators are used. To protect the geologically sensitive terrain of the Umbria-Marche-Tuscany border, the project foresees wide use of trenchless technologies: 3 tunnels, 11 r.c. micro-tunnels and 3 in steel, 2 raise-boring, 8 pipe-jacking for 8 km on total length will be realised. This new pipeline will enhance the transport volumes from the south, where new supplies enter the grid, to Italy’s north industrial hubs. Moreover, the capability of transporting increasing blends of hydrogen makes this pipeline an asset for targeting the Paris Agreement Net-Zero 2050 sustainability target.
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