Conditions were unsanitary in the 19th century.
 The road is mentioned in 1828 when there was an outbreak of yellow fever in Gibraltar.

A French medical commission visited the colony and documented their findings on the spread of the epidemic.
Many of the reported cases were in houses on Flat Bastion Road.

By September most of the houses on the road were infected.
A sanitary sewer that ran parallel to the road was suspected.
 One source said it did not emit any excessive odours that seemed out of the normal.
However, the French commission said that the sewer outside at least one of the houses in the road emitted a very bad smell ("une très mauvaise odeur").

A report of 1 September 1828 described Wilson's Buildings, two wooden sheds on the road to Flat Bastion, as "decidedly inimical to the health of any persons who may inhabit them."

Families living on the road in 1828 included those of Josepha Bernado, Jose Nuñez, the financier Grellet, the family of Thomas Gum, and the family of Michaela Medina.

In 1832 the Gibraltar Public School, a free English-language establishment for poor children, was set up in a government-owned building on Flat Bastion Road.
Funded by the contributions of wealthy people in the colony, it was open to children of all faiths.
By 1833, there were 181 boys and 99 girls at the school.
After boys were excluded in 1897, it continued as a school for girls into the early 20th century.

An 1883 Sanitary Order in Council aimed at reducing health risks defined Flat Bastion Road as one of the boundaries of the "streets, ramps, roads, lanes, passages, alleys, stairs and public places" within which the new regulations would apply.
The Army Medical Department reported in 1889 that several cases of diphtheria had occurred in the married quarters on Flat Bastion Road.
It turned out that the rainwater pipes from the roof were cracked.
The pipes were connected directly to the sewer, and sewer gas was escaping into the rooms.

The road was depicted in an article on the colony that appeared in 1885 in Frank Leslie's Popular Monthly, a New York-based magazine, in a pastiche of ink drawings that also depict "Catland Bay" (Catalan Bay), Waterport Gate, the signal station and the rock from the Spanish lines.
A donkey is depicted in the foreground.

Jeanie Conan depicted the picturesque road in a watercolour titled "Flat Bastion Rd.
Gibraltar" in 1888.

A visitor noted that the "Ladysmith club" on the Flat Bastion Road was holding masquerades in its salons, while elsewhere the Salvation Army was preaching and parading signs with advice from the gospels.
Conditions were unsanitary in the 19th century.  The road is mentioned in 1828 when there was an outbreak of yellow fever in Gibraltar.
A French medical commission visited the colony and documented their findings on the spread of the epidemic. Many of the reported cases were in houses on Flat Bastion Road.
By September most of the houses on the road were infected. A sanitary sewer that ran parallel to the road was suspected.  One source said it did not emit any excessive odours that seemed out of the normal. However, the French commission said that the sewer outside at least one of the houses in the road emitted a very bad smell ("une très mauvaise odeur").
A report of 1 September 1828 described Wilson's Buildings, two wooden sheds on the road to Flat Bastion, as "decidedly inimical to the health of any persons who may inhabit them."
Families living on the road in 1828 included those of Josepha Bernado, Jose Nuñez, the financier Grellet, the family of Thomas Gum, and the family of Michaela Medina.
In 1832 the Gibraltar Public School, a free English-language establishment for poor children, was set up in a government-owned building on Flat Bastion Road. Funded by the contributions of wealthy people in the colony, it was open to children of all faiths. By 1833, there were 181 boys and 99 girls at the school. After boys were excluded in 1897, it continued as a school for girls into the early 20th century.
An 1883 Sanitary Order in Council aimed at reducing health risks defined Flat Bastion Road as one of the boundaries of the "streets, ramps, roads, lanes, passages, alleys, stairs and public places" within which the new regulations would apply. The Army Medical Department reported in 1889 that several cases of diphtheria had occurred in the married quarters on Flat Bastion Road. It turned out that the rainwater pipes from the roof were cracked. The pipes were connected directly to the sewer, and sewer gas was escaping into the rooms.
The road was depicted in an article on the colony that appeared in 1885 in Frank Leslie's Popular Monthly, a New York-based magazine, in a pastiche of ink drawings that also depict "Catland Bay" (Catalan Bay), Waterport Gate, the signal station and the rock from the Spanish lines. A donkey is depicted in the foreground.
Jeanie Conan depicted the picturesque road in a watercolour titled "Flat Bastion Rd. Gibraltar" in 1888.
A visitor noted that the "Ladysmith club" on the Flat Bastion Road was holding masquerades in its salons, while elsewhere the Salvation Army was preaching and parading signs with advice from the gospels.
Flat Bastion Road