As for the practical construction, Japanese techniques based on the experience of castle construction were applied in public works, but only the railway bridge over the Rokugo River was constructed under the British's instruction using timber.
実際の建設に際しては、土木工事は築城経験のある日本の技術が生かされたが、六郷川橋梁だけはイギリス人の指導の下に木造で架橋された。