Bailey Bridge

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Context

• The deadly landslides that hit Kerala’s Wayanad district on July 30 led to the deaths of more than 219 people.

Details

• A major challenge in the rescue and relief operations was the continued rains in the region.
• To address this, the Indian Army’s Madras Engineer Group built a "Bailey bridge" at Chooralmala, allowing access to Mundakkai village, one of the worst-hit sites.
• The 190-foot Bailey bridge has been crucial in facilitating the movement of men, heavy machinery, and ambulances.
• It has a weight-carrying capacity of 24 tonnes and will remain in use until a permanent bridge is built.

What is a Bailey Bridge?

• A Bailey bridge is a type of modular bridge with pre-built parts that require minimal construction work and can be quickly assembled when needed.
• The Bailey bridge originated during wartime.
• Donald Coleman Bailey, an English civil engineer, invented it during World War II (1939-45).

How the Bailey Bridge Works

• The pre-fabricated parts of a Bailey bridge include light steel panels linked through pins, which are large, screw-like objects. These helps establish the guardrails of the bridge.
• Through the guardrails on either side, workers place beams to form the deck or path of the bridge. All beams are constructed to lock in on the guardrails to ensure stability.
• The bridge can be extended, and the lightness of the parts allows it to be mobile.
• No heavy installation equipment is needed.
• In disaster relief situations, this is ideal because parts can be transported in small trucks, which is also useful during wartime.

India and the Bailey Bridge

• The Indian armed forces, particularly the Indian Army, carried on the British legacy and inherited a large inventory of the Bailey bridge.
• Such bridges were used in the 1971 war with Pakistan for the liberation of Bangladesh.
• It was only afterward that modern bridging equipment began arriving in India, initially from the then-Soviet Union.

Conclusion

• The Bailey bridge built in Wayanad has been instrumental in the ongoing rescue and relief operations following the devastating landslides.
• Its quick assembly and durability make it an invaluable tool in both military and disaster relief efforts, continuing a legacy that began during World War II.

SOURCE: THE HINDU