Great Man Made River
Unlocked by Infrastructure
+2
(Great Engineer)
4200
(My best guess at what would be good - cost should take into account that the spot will likely be low production, but that the project is very large and should not be likely to be completed right at the beginning of the Modern era)
- Provides Fresh Water to all tiles within your empire on the continent
- +2
in all cities not adjacent to a river (Maybe +4
since those cities are already pretty weak?)
- Requires Oil Well in city radius
- Requires at least 5 desert tiles in city radius
- Requires city to not be on a river
The great manmade river is a currently partially complete project that draws water from the fossil aquifers of Libya to provide fresh water to the cities of Libya. The aquifers were discovered while people were looking for oil, and are vast reserves of water left over from thousands of years ago when the Sahara was green. Libya suffers from a lack of rivers, and its cities were hampered by needing to import water from elsewhere. When the project was just an idea, it had other goals such as irrigation of the desert, but Gaddafi decided that it should be used to connect all of Libya's cities to a source of freshwater. Currently, only some cities are connected, and the project isn't really making progress due to the political situation in Libya. However, as far as I can tell, the technology used for it is not super cutting edge or anything, hence why I think it should be unlocked by infrastructure.
Surprisingly for how ambitious this project seems, from everything I have seen it's not just a foolish dictator's dream but a useful and cost-effective solution to a problem the area faces, according to wikipedia the costs of it are only 10% what desalination would be and it currently services some cities.
I don't know of any wonders that require an improvement, but if possible I do think that it should require an oil well to already be present, since the aquifers would not have been discovered before oil production was a big thing. That and oil in the water wouldn't make much sense for the project either.
5 desert tiles was also chosen not super carefully - it's the second least desert tiles in Libya on the current map, but 3 seemed like too little and only cuts out two tiles in the real life area where it would be anyway. So that could change as well. Of course, with the new types of tiles on the new map, it could be x desert and semi-desert tiles instead.
I don't think it should require a civic, since the situation that makes it useful is much more based on geography than government, but if there were to be a civic for it I think state party would make the most sense.
Anyway, that's about it that I can think of, though I'm not sure of the balance. I think it should be fairly powerful yet expensive, with the main goal being to boost the population of your non-river cities. Any thoughts on any of it?