Is it correct to use infrastructure as a countable noun in this context?

My understanding of the word "infrastructure" is that it is uncountable.

However, upon looking it up in Oxford Learner's Dictionary, I found that it is classified as "countable, uncountable." http://www.oxfordlearnersdictionaries.com/definition/english/infrastructure

With that in mind, my question is: is the following sentence grammatical? It seems wrong to me:

I enjoy the city infrastructures and the kindness of the local people.

EDIT: This was written by a student from a developing country about her experience living in a developed one.

Solution 1:

A cursory Google search suggests that the majority of attestations of the plural infrastructures will be found in books and articles authored by non-native speakers. (I know, I know, a name is not conclusive evidence of anything).

In the American press, we tend to see and hear the singular infrastructure used as a non-countable noun that encompasses sewage, water treatment, roads, electrical grid, communications, etc. Unmodified, it refers to any or all of them. We tend not to use the plural to refer to several of them together:

The earthquake severely damaged the city's water-treatment and electrical infrastructure.

We might even see a plural verb after the non-count noun:

They seemed to rest content with the idea that road and rail infrastructure were now treated on an equal footing... [emphasis mine]

(though this is not from a US publication)