Hilsea Lines, Military fortification in Hilsea, Portsmouth, England.
The Hilsea Lines stretch along the northern edge of Portsea Island, featuring extensive ramparts, ditches, and defensive structures built of stone and earth.
The fortifications underwent major reconstruction between 1858 and 1871, following military lessons from the Crimean War and plans submitted by Colonel Jervois.
The Lines represent British military engineering during the Victorian era, when Portsmouth developed into one of the most fortified cities in England.
Visitors can explore the accessible sections of the fortification, which received a Green Flag award in 2010 for its maintained public areas.
The fortification includes special bridges constructed to accommodate both road and rail access while maintaining defensive capabilities against northern approaches.
Location: City of Portsmouth
Inception: 1858
GPS coordinates: 50.83379,-1.06383
Latest update: March 9, 2025 18:10
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