# Passage of Curupayty (1867)

vteParaguayan War :
Mato Grosso campaign
Marquês de Olinda
1st Corumbá
Fort Novo de Coimbra
Feio River
Dourados
Nioaque
Anhambaí
Fort Miranda
Coxim
Laguna
Apa River
2nd Corumbá
Alegre
Corrientes campaign
Corrientes
San Lorenzo River
Rio Grande do Sul
São Borja
Butuí
Uruguaiana
Riachuelo
Salto
Paso de Mercedes
Paso de Cuevas
Yatay
Pehuajó
Jaguarí
Humaitá campaign
Purutué Bank
Paso de Patria
Laguna Sirena
Itapirú
Estero Bellaco
Paso Cidra
1st Tuyutí
Yataytí Corá
Boquerón
Sauce
Palmar
Curuzú
Curupayty
Arroyo Hondo
Hacienda Laguna
Tuyú Cué
1st Passage of Curupayty
Pilar
Ombú
Estero Rojas
Perecué
Tatayibá
Potrero Obella
Humaitá
Passage
2nd Tuyutí
Paso Ipohy
2nd Passage of Curupayty
Laguna Cierva
Cabral and Lima Barros
1st Iasuií
2nd Iasuií
Poí Island
Barroso and Rio Grande
Acayuazá
Fortín Island
Pikysyry campaign
Yacaré
Paso de Tebicuarí
Surubí
Pikysyry
Dezembrada
Ytororó
Avay
Lomas Valentinas
Angostura
San Fernando
Asunción
Cordilleras campaign
Manduvirá River
Concepción
Ybytimí
Tupí-hú
Sapukái
Diarte
Piribebuy
Acosta Ñu
Piribebuy River
Hondo River
Itapytangua
Tacuaty
Curuguaty
Hucuratí
Loma Rugua
Caguijuru–Caraguataí
Iguatemi
Río Verde
Cambaceguá
Lomaruguá
Cerro Corá
Miranda :
The passage of Curupayty was an allied naval operation carried out on 15 August 1867, in the context of the Paraguayan War, which aimed to force the passage of Brazilian battleships against the defensive fortifications installed in the Curupayty fort on the banks of the Paraguay river. There was a second crossing on 13 February 1868 with a fleet of armored monitors destined to join the fleet that had crossed first to form the squadron responsible for forcing the Passage of Humaitá.

## The crossing

The difficulties faced by the allies were enormous. The war was already in its third year and they were trapped in a small area in southwest Paraguay, largely due to the disaster that had occurred about a year earlier in the Battle of Curupayty. An advertising victory was urgent to boost troops' morale. Humaitá was the main focus but Curupaiti was on the way.
The high command of the Imperial Navy had considered forcing the passage over Curupaiti and Humaitá but considered it a practically impossible feat. Curupaiti was a group of fortifications and trenches, some kilometers downstream from the fortress of Humaitá, and part of the defensive complex of Humaitá.
On August 15, 1867, at 6:40 am, the Brazilian Warships went into action. They were:
| Division | Ship | Commander |
| 2nd Division (Rodrigues da Costa) | Ironclad Brasil | Salgado |
| | Armored corvette Mariz e Barros | Neves de Mendonça |
| | Ironclad Tamandaré | Elisiário Barbosa |
| | Ironclad Colombo | Bernardino de Queiroz |
| | Armored monitor Bahia (flagship) | Pereira dos Santos |
| 1st Division (Tôrres e Alvim) | Ironclad Cabral | Gerônimo Gonçalves |
| | Ironclad Barroso | Silveira da Mota |
| | Ironclad Herval | Mimede Simões |
| | Ironclad Silvado | Macedo Coimbra |
| | Ironclad Lima Barros (flagship) | Garsino de Sá |
At this point, the river had two channels. One was deeper, but it was closer to the enemy batteries, and the current was stronger. In the other channel, the risk of stranding was very great; in addition, a Paraguayan defector claimed that torpedoes had been placed there recently. Inácio chose to follow the channel closest to the batteries, and his choice was correct. While the wooden vessels of the imperial navy suppressed fire, the warships crossed Curupaiti. Each ship took about 40 minutes to pass.
Some ships were badly damaged. A shot penetrated the Tamandaré through one of its hatches, killing or injuring 14 of its crew. His engine had been damaged and stopped, leaving them adrift under the arms of the fort; he was rescued by Silvado, who threw a cable at them and took them in tow.Tamandaré commander Elisário Barbosa lost his left arm. According to Commander Kennedy, the accident with the Tamandaré forced Colombo, who was behind, to stop the engines to avoid a collision between the boats. The strong current placed them side by side, making maneuverability impossible. Colombo approached the Paraguayan cannons, which caused serious damage before he could leave his dangerous position. There were 25 Brazilian casualties including 3 dead. Warships, taking the channel closest to the Paraguayan cannons, escaped a more serious danger, as soon after the passage several torpedoes were found in the other channel.