Black Nore Lighthouse

Black Nore Lighthouse stands on a small rocky outcrop at the mouth of the Severn Estuary in Portishead, North Somerset. Built in 1894 by Trinity House, the cast-iron tower was painted white to guide ships safely into Bristol Harbour. The lighthouse once used a rotating fourth-order optic that flashed twice every ten seconds, visible for 11 nautical miles. Its location was chosen because the estuary’s tides create one of the world’s largest tidal ranges, reaching nearly 15 metres at nearby Avonmouth. Shifting sandbanks like the Welsh Hook and the English and Welsh Grounds made navigation hazardous, requiring a reliable light. The lighthouse also marks the point where the estuary opens into the Bristol Channel. The lighthouse played a key role in maritime safety, but its light was decommissioned in 2010 after modern navigation aids made it unnecessary. A steamship, the Brunswick, sank nearby in 1900 after hitting the Welsh Hook sandbank, and its wreck was identified over a century later. Originally powered by gas, the light was later converted to electricity in 1941, with its mechanisms wound daily by the Ashford family until then. After decommissioning, the building faced demolition but was saved by its grade II listed status in 2011. The Blacknore Lighthouse Trust took ownership in 2011 to preserve it as a landmark, though its future is now uncertain. Visitors to the site find a small but striking cast-iron tower standing on rugged rock above the estuary. The lighthouse’s white-painted exterior contrasts with the dark stone of the outcrop, making it a distinctive landmark. Inside, the original optic was removed in 2025, but the tower’s structure remains intact, including the brass-mounted Fresnel lens components and bronze gear wheel. The surrounding area, Blacknore Point, offers views across the Bristol Channel and along the Severn Estuary’s shifting waters. The lighthouse sits near the Welsh Hook and English and Welsh Grounds sandbanks, where tides and currents constantly reshape the seabed. Though its future is unclear, the lighthouse remains a reminder of the area’s maritime history.