Complex sentence: In the project phase, the bridge was referred to as the Tha Chang Wang Na Bridge (Thai: สะพานท่าช้างวังหน้า), however, in June 1973, it was officially named the Somdej Phra Pinklao Bridge in the honour of prince Pinklao.
Split into simpler sentences: In the project phase, the bridge was referred to as the Tha Chang Wang Na Bridge (Thai: สะพานท่าช้างวังหน้า). In June 1973, it was renamed the Somdej Phra Pinklao Bridge in honour of prince Pinklao.