中桥梁片为14.5m+14m+14.5m的普通钢筋混凝土刚架连续梁,该桥由9个刚构桥以及向莆联络线1个刚构桥组成,桥面宽4.52~12.656m,全长43米。跨中梁高为1.1m,蹲台顶与梁相交处设200×50m梗肋。刚架1、9设1.5m长悬臂,刚架10设1.7m长悬臂,其余刚架无悬臂。刚架1和9梁底宽3.0m,顶板宽6.0m,梁厚20~160cm,长度43.0米;刚架2板宽10.002~12.851m,梁厚160cm,长度43.648米; 刚架3板宽5.311~9.047m,梁厚110~160cm,长度43.0米; 刚架4板宽9.39m,梁厚110~160cm,长度43.0米; 刚架5板宽4.52m,梁厚110~160cm,长度43.0米; 刚架6板宽10.10m,梁厚110~160cm,长度43.0米; 刚架7板宽9.10m,梁厚110~160cm,长度43.0米; 刚架8板宽11.05 m,梁厚110~160cm,长度43.0米; 刚架10梁底宽5.2m,顶板宽8.6m,梁厚20~160cm,长度43.0米。