This project is to collect information on the repair of reinforced concrete bridge in Agency care through the Department of rural highway. Since the end of the 2557 (2014)-2555 (2012) of 29 projects classified in Bridge project and the bridge community through 11 18 projects to study and analyze the repair of reinforced concrete bridge in each project that there is damage that occurs in any way? The repair can be made by any method, with a few ways to repair and the budget are used in repairs, as well as to how long it will take to repair the bridge of reinforced concrete that much time and price.From the study it was found that can recognize the damage that occurred in the major parts, including the parts 1 to 4 poles, tomo 2. beams receive. ground floor 3. belly bridge, bridge and mast holder lever by tomo 4. damage primarily occur in all four parts are damage caused by the surface of the steel, which is caused by water and salt stains that occur until seeing the erosion of iron supplements. There are also caused by boat or in the water flow and erosion until the crack occurred.The study found that rural Highway Department chose to use the extraction method, concrete repair, new cast. The only way for an individual piece, because it is able to repair the damage that has occurred in many ways and can be used in many ways, the damaged parts. In addition, the study found that the use of the budget and the average repair time for each piece as follows: 1. antenna tomo. The average budget per 1 ton 76980 baht on average 70 days time per 1 project 2. beam bridge floor average budget receipts 5650 baht per 1 sq.m. The average time per day, 18 3 project 1. belly bridge flooring using the average budget per 1 square meter 12707 baht. 14 day time per 1 pole holder lever 4. tomo project. 12815 baht per 1 budget sq.m. Time 13 days per project.
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