我县1960年以前修建的桥梁多数是石台木面桥,随着交通运输事业的发展,都需进行改造。1977年,在我县水桶口、马蹄溪两座净跨40米的木桁架桥改建为石拱桥的工程中,设法利用原桥台做桥台,原桥面材料做支架,节省了大量人力、物力,取得了良好的经济效果。通过上述两桥的改建施工,使我们对旧桥的加固及改建工程获得了一些体 Most of the bridges constructed in our county before 1960 are Shitai Mupu Bridge. As the transportation business develops, all of them need to be rebuilt. In 1977, in my county bucket mouth, horseshoe Creek two 40 meters across the net truss bridge into a stone arch bridge project, try to use the original abutment bridge, the original bridge material to do the stent, saving a lot of manpower, Material resources, and achieved good economic results. Through the reconstruction of the above two bridges, we have gained some experience in strengthening and rebuilding the old bridges