Monivong Bridge, Bridge over Bassac River in Phnom Penh, Cambodia

Monivong Bridge spans the Bassac River in Phnom Penh, carrying National Highway 1 between the west bank, where National Highway 2 ends, and the east bank leading toward eastern Cambodia and Vietnam. The concrete structure is 269.5 metres long and 14 metres wide. A second, parallel bridge 268 metres long and 14 metres wide stands beside it, opened to traffic on 27 May 2009.

The first bridge here, a steel-frame structure, was built in 1928 during the reign of King Sisowath Monivong (1927–1941) and was known as Spean Chroy Ok or Gustave Eiffel. By 1964 it had deteriorated badly and was rebuilt in reinforced concrete, inaugurated on 17 November 1966 at 269.5 m long and 14 m wide. A second parallel span, 268 m long and 14 m wide, was begun on 23 December 2006 and opened to traffic on 27 May 2009.

The bridge is also known as Spean Chhbar Ampov, after Chhbar Ampov market on the eastern shore, where the crossing meets National Highway 1 toward eastern Cambodia and Vietnam. The Khmer name honours King Sisowath Monivong, who reigned from 1927 to 1941.

The bridge carries regular traffic as part of the main city routes and can be crowded during peak hours. Walking across or biking is possible, though you will be sharing the space with vehicles.

The bridge is also known as Spean Chbar Ampov, after the Chhba Ampeou Market on its eastern shore. Its first iron-truss version, built in 1928 under King Sisowath Monivong, was replaced by a concrete structure inaugurated on 17 November 1966; a second span opened to traffic on 27 May 2009.