Why can't I build a Dam ?

[er_veneco]

Southwest of Shedet, where a farm is currently built.

There is only one river the Bahr Yussef and in the strategic view the river touches the hex in two sides.

 

[MrRadar]

Have you researched Buttress? If yes, is there already a dam on that river somewhere downstream? Only one per river is allowed.

 

[er_veneco]

Yes, buttress researched.
No other dam down river.

 

[HiRezAudio]

Can't really see the tile, but AFAIK a Dam can only be built on a floodable tile, yes/no?

 

[Linklite]

Can't really see the tile, but AFAIK a Dam can only be built on a floodable tile, yes/no?

It has to be on floodplains, which the tooltip says it is.

 

[Leyrann]

What is Qattara Depression? Is it a name or something?

Another possibility: I haven't played Egypt with GS myself, but might they be disabled because Egypt can't receive damage from floods? Would be rather weird because of this and hydroelectric dams, but I could see it happen.

EDIT: I went and checked, Egypt can build dams like normal.

 

[MrRadar]

What is Qattara Depression?

Yes, I was wondering about that too. Could that point to some map or other sort of mod that could be messing up the things?

 

[er_veneco]

No mods. Standard continents. I think the Qatara Depression is just a stylish name for the desert tiles that are all together. I think it’s just eyecandy/Easter eggs that Civ throws in there

Also it is not a Real World Map. I know there were some issues with the rivers not being named and as such not being identified as rivers in those maps.

 

[MrRadar]

Could you upload a save file? Then someone might take a closer look.

 

[Turrdy]

There needs to be a flood plain also on the other side of the river adjacent to the tile you want to put your dam on that belongs to the same river (according to tooltip).
i.e. if the tile south east of the marked tile is not a flood plain or if it belongs to the river south east of that tile (i.e. if it doesn't say Bahr Yussef on the tooltip) I have bad news for you.

 

[TheMarshmallowBear]

From top of my head:

- Must be built on a floodplains adjacent to at least 2 river edges.
- Must be built on a floodplains not containing Great Bath or another Dam
- Must be built on a floodable floodplain (Earth maps are notorious for this bug, where the rivers aren't properly initalized, this looks like a generated map so this shouldn't be the case)

 

[Linklite]

From top of my head:

- Must be built on a floodplains adjacent to at least 2 river edges.
- Must be built on a floodplains not containing Great Bath or another Dam
- Must be built on a floodable floodplain (Earth maps are notorious for this bug, where the rivers aren't properly initalized, this looks like a generated map so this shouldn't be the case)

To clarify -

Point 1, it has to be the same river, and no other river. If another river touches thenhex, it messes things up.

Point 2 - The river has to have no dam or Great Bath, not the floodplains. Edit: I accepted the claim that Great Baths as true since I didn't know it was incorrect, but later posts show that Great Baths do not prevent days from being built.

 

[kaspergm]

There needs to be a flood plain also on the other side of the river adjacent to the tile you want to put your dam on that belongs to the same river (according to tooltip).

I don’t think this is correct. Can anybody confirm/deny?

From top of my head: (…)
- Must be built on a floodplains not containing Great Bath

I’m not sure this is correct? I, quite unusually, got to build the Great Bath in both my recent games, and I think the game kept prompting me to build a dam also on the same river. I remember it confused me because I thought it would be superfluous (except of course for the power). I can try to load a save to show a screenshot later.

 

[Tech Osen]

I don’t thing this is correct. Can anybody confirm/deny?


I’m not sure this is correct? I, quite unusually, got to build the Great Bath in both my recent games, and I think the game kept prompting me to build a dam also on the same river. I remember it confused me because I thought it would be superfluous (except of course for the power). I can try to load a save to show a screenshot later.

You can indeed build a dam on a floodplain area with the Great Bath. And that first claim is also something that I never noticed im game.

 

[kaspergm]

Well just to eliminate any doubt, here is a screenshot of a dam and Great Bath on the same river:

Spoiler :

 

[Turrdy]

I don’t think this is correct. Can anybody confirm/deny?

I think I can deny it myself! I started some games in industrial age and tried it out:

So for the context: The tile west and northwest of Pella are tiles owned by the river Vardar, the other relevant tiles are owned by the river Struma. According to my claim you shouldn't be able to put a dam on the tile west of Pella. But you clearly can, so what I claimed is not true!

Spoiler Pella :

On the other hand, here is Beijing:
You can't put a dam on the tile southwest of Beijing although the flood plain has a river on two sides (Songhua). But the tile belongs to the river Wei He, which shares only one side with that tile, so no dam!

Spoiler Beijing :

But I guess the original problem is a different one!

 

[kaspergm]

But I guess the original problem is a different one!

Which raises the question: We still haven't gotten a plausible answer as to why OP can't build a dam in the marked tile, have we?

 

[Leyrann]

Which raises the question: We still haven't gotten a plausible answer as to why OP can't build a dam in the marked tile, have we?

We haven't. As far as I can tell, it should be possible.

The save game might be useful though.

 

[Turrdy]

Maybe the tile doesn't belong to the city and is worked by a different one. But looking at the screenshot, it seems that this most probably (with certainty) isn't the case here.
Maybe er_veneco is just playing with us, haha
In any case, why build the dam there anyway? I think the tile southwest of it could suit better. You'd still had the bonus for the IZ and could build a CH right next to the city where the dam was planned for a nice adjacency bonus!

 

[reddishrecue]

Yes, I was wondering about that too. Could that point to some map or other sort of mod that could be messing up the things?

What is Qattara Depression? Is it a name or something?

Another possibility: I haven't played Egypt with GS myself, but might they be disabled because Egypt can't receive damage from floods? Would be rather weird because of this and hydroelectric dams, but I could see it happen.

EDIT: I went and checked, Egypt can build dams like normal.

Qattara Depression is a real-life Egyptian place. Its like being Aztec and having a body of water nearby named The Gulf of Mexico.