Bowbelle: The History and Tragic Legacy of a Thames Dredger
The Bowbelle was a specialized dredging vessel designed for the unique constraints of the River Thames. Built during the mid-1960s, the ship spent decades navigating the heart of London, though its operational history was marked by industrial disputes, multiple collisions, and a catastrophic maritime disaster.
Construction and Design
Bowbelle was constructed in 1964 by the Ailsa Shipbuilding Co. Ltd. in Troon, Ayrshire, as yard number 517. Launched on May 11, 1964, and completed on July 15, the vessel was built for F. Bowles & Sons Ltd of Cardiff. Registered in Cardiff with the Official Number 306078 and Code Letters GNLE, the ship was engineered specifically to operate upstream on the River Thames as far as Nine Elms.
To navigate the river's numerous bridges, the ship featured a reduced superstructure height and masts that could be folded. During its maiden voyage, the vessel nearly collided with Tower Pier due to a failure in the anchor release system. The ship typically operated with a crew of seven men.
[ไม่มีภาพประกอบ]Early Career and Industrial Conflict
Shortly after entering service, Bowbelle and its sister ship, Bowqueen, became central to a labor dispute in November 1964. The vessels were detained in London for six weeks by the Watermen, Lightermen, Tugmen and Bargemen's Union (WLTBU). The conflict arose when crews switched their membership from the National Seamen's Union to the WLTBU, a union not recognized by F. Bowles & Sons.
This dispute led to a significant legal precedent when F. Bowles & Sons obtained an ex parte injunction—a court order granted for the benefit of one party without notice to the other—to prevent the union from interfering with new crews. This was reported as the first such injunction issued against a union. However, subsequent requests for further injunctions by F. Bowles & Sons and the Metropolitan Sand and Ballast Co. were denied by the court on January 13.
Ownership Changes and a Pattern of Collisions
Over the following decades, Bowbelle changed hands several times and was involved in numerous maritime accidents. In 1977, it was sold to British Dredging Aggregates Ltd, and in 1978, it moved to British Dredging (Sand & Gravel) Co. Ltd, shifting its registry to London. During this period, the vessel was assigned Lloyd's Register Number 6413235, which later became its IMO (International Maritime Organization) number in 1987.
The vessel's history was plagued by incidents:
- May 26, 1982: Collided with scaffolding on the Cannon Street Railway Bridge.
- June 9, 1983: Collided with the excursion boat Pride of Greenwich near Hungerford Bridge.
- November 5, 1987: Collided with the dredger Bowsprite near Tower Bridge, resulting in bow damage and a hole below the waterline.
Following these events, the ship was sold to East Coast Aggregates Ltd in 1984 and later to South Coast Shipping Co. Ltd in 1988.
The Marchioness Disaster
The most infamous event in the ship's history occurred at 01:46 on August 20, 1989. Bowbelle collided with the excursion boat Marchioness between Southwark Bridge and Cannon Street Railway Bridge. The collision caused the Marchioness to sink, resulting in the deaths of 51 people, while 80 others survived.
An investigation by the Marine Accident Investigation Branch (MAIB), published on June 5, 1990, identified several contributing factors. The report noted that visibility from the wheelhouses of both vessels was severely restricted. Furthermore, the Marchioness was not keeping to the starboard (right) side of the river, and the crew of the Bowbelle failed to maintain an efficient lookout. Neither vessel detected the other until the collision was unavoidable.
Final Years and Sinking
After the disaster, Bowbelle was sold back to East Coast Aggregates Ltd in 1990 and then to Seal Sands Maritime Ltd of Gibraltar in 1992. Renamed Billo, the ship was reflagged to Saint Vincent and the Grenadines and managed by Bilberry Shipping & Stevedores Ltd of Ireland, using the call sign J8GH2.
In 1996, the vessel was sold to Antonio Pereira e Filhos Lda of Madeira, Portugal, and renamed Bom Rei. Its service ended abruptly on March 25, 1996, when its dredge pipe caught on the seabed, rupturing the hull. The ship broke in two and sank off Ponta do Sol, Madeira, claiming the life of one crew member. The wreck now rests in 100 feet (30 m) of water and serves as a popular site for divers.
Key Facts
- Built: 1964 by Ailsa Shipbuilding Co. Ltd.
- Special Feature: Foldable masts and low superstructure for Thames bridge clearance.
- Major Incident: Collided with the Marchioness in 1989, causing 51 fatalities.
- Final Name: Bom Rei.
- Fate: Sank off the coast of Madeira in 1996.
| Period/Date | Name | Owner/Operator | Registry/Flag |
|---|---|---|---|
| 1964–1977 | Bowbelle | F. Bowles & Sons Ltd | Cardiff, UK |
| 1977–1984 | Bowbelle | British Dredging | London, UK |
| 1984–1990 | Bowbelle | East Coast Aggregates / South Coast Shipping | UK |
| 1992–1996 | Billo | Seal Sands Maritime Ltd | St Vincent & the Grenadines |
| 1996 | Bom Rei | Antonio Pereira e Filhos Lda | Portugal |
Frequently Asked Questions
Why was Bowbelle designed with foldable masts?
The ship was specifically built to navigate the River Thames as far upstream as Nine Elms, requiring it to pass under several low-clearance bridges.
What caused the collision between Bowbelle and the Marchioness?
The MAIB investigation found that restricted visibility in both wheelhouses, the Marchioness failing to keep to the starboard side, and a lack of an efficient lookout on the Bowbelle contributed to the accident.
How many people died in the Marchioness disaster?
The sinking of the Marchioness resulted in the loss of 51 lives, while 80 people survived.
What happened to the ship at the end of its life?
Renamed the Bom Rei, the ship sank off Ponta do Sol, Madeira, on March 25, 1996, after its dredge pipe caught on the seabed and ruptured the hull.
Was Bowbelle involved in any other accidents?
Yes, the vessel collided with scaffolding on Cannon Street Railway Bridge (1982), the excursion boat Pride of Greenwich (1983), and the dredger Bowsprite (1987).