# Engineers Remove Masts from WWII Munitions Ship in Thames Estuary Strategic removal of SS Richard Montgomery masts mitigates risk of catastrophic explosion near Kent. - **Source:** [Business | The Guardian](https://www.theguardian.com/uk/business) - **Published:** 2026-10-19 - **Topic:** [Business](https://brifing.si/c/business) - **Original article:** - **On Brifing:** https://brifing.si/s/0debee63-d0c4-430c-a532-9267a5abe91b ## Strategic Risk Mitigation Engineers successfully removed the final masts of the SS Richard Montgomery, a WWII cargo ship resting in the Thames estuary. This operation aimed to eliminate the structural risk posed by the masts, which could have collapsed onto the 1,400 tonnes of unexploded munitions, potentially triggering a massive, devastating explosion near Sheerness. ## Historical Context of Wreck The American vessel sank in 1944, carrying a lethal cargo of approximately 300 blockbuster bombs and over 2,000 cluster munitions. For decades, the wreck has remained under constant surveillance due to the volatile nature of the submerged explosives, which have been subject to intense debate regarding their potential impact on coastal areas. ## Engineering and Project Execution Maritime minister Keir Mather confirmed the project was completed ahead of schedule and under the £9.5m budget. The complex operation required specialized engineering expertise to safely dismantle the masts without disturbing the ship's hull. These components were subsequently transferred to the Historic Dockyard Chatham to preserve their significant wartime historical legacy. ## Potential Explosion Scenarios Expert opinions on the consequences of a detonation have varied significantly since the ship sank. A 2004 report suggested a potential tsunami and debris reaching 3km into the air, while government assessments consistently highlighted severe risks to local property and populations. Removing the masts directly addresses these long-term safety management concerns. ## Ongoing Site Monitoring Despite the successful removal of the masts, the wreck remains under continuous monitoring within an established exclusion zone. This maritime safety perimeter is strictly enforced to prevent accidental contact from passing cargo vessels. The site continues to be managed as a high-risk area, ensuring that no further structural instability occurs underwater. ## Regulatory and Safety Measures Since 2025, a no-fly zone has been implemented over the wreck site to further enhance safety protocols. These restrictions reflect the government's commitment to managing the site's long-term stability. Such measures prevent potential interference from aviation, which was previously a point of contention regarding proposed infrastructure projects in the Thames estuary region. ## Public Safety Concerns Local residents have expressed alarm over recent years due to incidents involving nearby cargo shipping and unauthorized human contact. One notable event involved a paddleboarder photographing himself leaning on the protruding masts, highlighting the necessity for the exclusion zone. These events underscored the urgency of the structural removal project for public safety. ## Project Outcome and Significance The removal of the masts marks a critical milestone in the long-term management of the SS Richard Montgomery. By reducing the structural load on the wreck, authorities have significantly lowered the probability of an accidental explosion. The project successfully balances historical preservation at the Chatham museum with essential modern-day safety requirements. ## Sources covering this story - https://www.theguardian.com/uk-news/2026/oct/19/us-wwii-ship-richard-montgomery-thames-bombs-prevent-explosion — --- _Summary written by Brifing from the original reporting. Copyright in the original article belongs to its publisher; read the full piece at the link above._