陳濟棠做廣東一哥陣，喺1931年，又喺長堤大馬路南邊，填築咗東自龍王直街（原長堤電燈局）、西至仁濟路口嘅一段彎曲河岸淺灘，炸走咗阻擋嘅海珠礁石，耗資75萬，整好咗1159米長、11～20米闊嘅蠟青路面嘅新堤大馬路（今沿江西路），起自永安堂（今市兒童圖書館）東端，止於愛羣大廈西端。原為河岸嘅長堤大馬路就變成咗內街。呢個工程既清理咗珠江河道 主要險段，又闢出大片陸地起到咗馬路、街道，由此獲得鋪位面積近40萬方同埋一大片廣場。到呢陣時，天字碼頭起向西直到廣州海關成為咗直筆甩嘅河岸馬路。
In 1931, on the south side of the Long Beach Road, he filled in a section of the curved river bank shallows from Longwangzhi Street (formerly the Long Beach Electric Light Bureau) in the east and to the intersection of Renji Road in the west, and blew up the blocked Haizhu Reef, which cost 750,000 yuan to complete the 1159-meter-long, 11~20-meter-wide asphalt pavement of the Xindi Road (now Yanjiang West Road), starting from the east end of Yong'an Hall (now the City Children's Library) and ending at the west end of the Oi Kwan Building. Avenida de la Causeway, which used to be the bank of the river, has been turned into an inner street. This project not only cleared the main dangerous section of the Pearl River channel, but also opened up a large area of land to serve as roads and streets, thus obtaining a paved area of nearly 400,000 square meters and a large square. Up to now, the Tianzi Wharf has become a straight river bank road from the west to the Guangzhou Customs.