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Prefabricados Delta has been offering solutions since 1968 and was founded to meet a demand for pipes in Madrid, needed to improve the supply of services. The Humanes Factory was established and 200 km of steel cylinder concrete pipes were supplied.
During the 1970s, the factory broadened its scope and undertook different supply, irrigation and sanitation orders, as well as prefabrication orders on a national scale.
A new factory to precast pre-stressed steel cylinder concrete pipes was set up in 1985 in Puente Genil (Córdoba) in order to supply pipes for the Comunidad de Regantes del Genil Cabra main network, covering a 40,000-hectare surface area.
In 1992, monoblock concrete sleepers for the Madrid-Sevilla High-Speed railway were supplied from the Puente Genil Plant.
The precasting of tunnel segments for line 12 (Metro Sur) of the Madrid Metro began in 1998.
Construction began in 2003 on our glass reinforced polyester pipes (GRP) factory, set up to meet the needs of our clients in the irrigation and sanitation sectors.
The supply of segments for the south tunnel of "Calle 30" in Madrid, setting a world record at the time for that type of tunnel, began in 2005.
Bridge segments for the Despeñaperros viaducts in Jaén, built to improve the A4, were supplied in 2007.
A factory to manufacture post-tensioned precast concrete girders, measuring up to 40 metres in length, for the Riyadh Metro in Saudi Arabia was designed and built in 2015.