 Ramba uchinyora ndima iyi - Muna 1866, Mambo Mongkut akarayira Sri Suriyawongse kuti atarisire kuvakwa kwemugero wakareba makiromita 35 waibatanidza Rwizi rweTha Chin neRwizi rweMae Klong kuti zvive nyore kuenda kuWestern Siam. Kuvakwa kwacho kwakapedzwa muna 1868 uye kwakatumidzwa kuti Damnoen Saduak Canal. Sezvo Sri Suriyawongse akanga ashandisa pfuma yake pakuvaka mugero wacho, Mambo Mongkut akabvumira vaBunnags kugara pedyo nomugero wacho. Muna Nyamavhuvhu 1868, Sri Suriyawongse akaronga rwendo rwehumambo rwaMambo Mongkut kuenda kuWa Keo, Prachuap Khiri Khan Province nemwanakomana wake Prince Chulalongkorn kuti vaone kuora kweZuva kwaNyamavhuvhu 18, 1868yakaverengwa namambo. 