It is 69 feet, 4¼ inches (approximately 21 metres) tall, with large arched openings on the main axis (north-west to south-east), and smaller, lower arches on the north-east and south-west sides. The width, heights and depths of the arches are in simple 2:4:1 proportions: the larger arches are 18 feet (5.5 m) wide, 36 feet (11 m) tall and 9 feet (2.7 m) deep; and the smaller arches are 12 feet (3.7 m) wide, 24 feet (7.3 m) tall and 6 feet (1.8 m) deep. Stone wreaths are carved in relief on the legs at the front (north-west side, facing University Road) and rear of the largest arch; inside these are carved the dates of the First World War: MCM XIV (1914) on the left side, and MCM XIX (1919) on the right.