@article{oai:nagano-nct.repo.nii.ac.jp:00000080,
 author = {NAGATO, Toshimiya and 永藤, 壽宮},
 journal = {長野工業高等専門学校紀要, Memoirs of Nagano National College of Technology},
 month = {Jun},
 note = {application/pdf, It is generally proposed to set aim 200 years as span of fatigue design. It is significant to keep the good condition of bridge for a long time. This study investigates present inspection of charge and maintenance. We experiment about some examples of actual bridges with a crack. We report these researches on Chikumagawa-river Basin.},
 pages = {51--60},
 title = {千曲川流域における補修を必要とする橋梁点検調査},
 volume = {37},
 year = {2003}
}