[R&F] Is anyone having trouble with Aqueducts?

[MaryKB]

I can't seem to find anything that would restrict the placement of an Aqueduct, other than it needs to be next to the city center and also next to either a river, mountain, or lake. I am having trouble suddenly that it is restricting where I can place the Aqueducts (in several cities), and I am afraid I just don't understand.

I have open spaces (some cities hills, others flat land, grasslands or plains with no features, improvements, or resources) that are next to a river, but I cannot place the Aqueduct on them. The only options it is giving me seem to be on tiles that have a farm over a wheat resource, which I'd really rather not replace if I can help it.

 

[Cerilis]

Someone else can probably explain it better, but when the segment of river that touches the city, is also the only segment of river that touches the tile you want to build the aqueduct on, then you can't build it because the aqueduct would be looping back to its point of origin.

 

[iammaxhailme]

I can't seem to find anything that would restrict the placement of an Aqueduct, other than it needs to be next to the city center and also next to either a river, mountain, or lake. I am having trouble suddenly that it is restricting where I can place the Aqueducts (in several cities), and I am afraid I just don't understand.

I have open spaces (some cities hills, others flat land, grasslands or plains with no features, improvements, or resources) that are next to a river, but I cannot place the Aqueduct on them. The only options it is giving me seem to be on tiles that have a farm over a wheat resource, which I'd really rather not replace if I can help it.

Can you post a screeshot?

 

[WillowBrook]

There's a detailed explanation of the aqueduct placement requirements in the Housing guide stickied in the Strategy & Tips forum.

For rivers, the aqueduct must border a section of river that does not already border the city center. I don't recall details for lakes and mountains.

 

[unpossible251]

Yeah this came up before. Put simply, Aqueducts wont let you "double dip" on a single source. So if your riverside city is giving you six freshwater housing, you cant use the same river to get a +2. You can, however, 'duct to a mountain.

Again, screenshot helps.

 

[Jackanape]

Is it a floodplain? I've had similar problems before, not noticing that...there should be a better visual...

 

[Leyrann]

Yeah this came up before. Put simply, Aqueducts wont let you "double dip" on a single source. So if your riverside city is giving you six freshwater housing, you cant use the same river to get a +2. You can, however, 'duct to a mountain.

Again, screenshot helps.

Incorrect. You cannot use the same segment of the river (primarily because the Aquaduct would then start in the same spot it would end), but you can use a different segment from the same river.

 

[isau]

The main thing is to think of how water flows. If there is some way for water to flow from the source to the city, you can place the aqueduct. If not, you can't. The duct can bend but what it can't do is cross over a river, because that would just make water flow away from the city rather than into it.

For mountains I think you can pretty much place the duct anywhere and be fine. The whole duct problem originates because rivers exist between hexes rather than on them. Mountains don' have that issue.

 

[Leyrann]

The main thing is to think of how water flows. If there is some way for water to flow from the source to the city, you can place the aqueduct. If not, you can't. The duct can bend but what it can't do is cross over a river, because that would just make water flow away from the city rather than into it.

Also not how it works.

Let me give it a try with paint.

Clockwise starting with the Northeast tile:

Tile 1: The aquaduct here has one option, namely from the SE river tile to the SW city tile.
Tile 2: The aquaduct here has 3 options, namely from the NW, NE or E river tile to the W city tile.
Tile 3: The aquaduct has no options as there is no river.
Tile 4: The aquaduct has one option, namely from the NW river tile to the NE city tile.
Tile 5: The aquadcut has one option, namely from the SE river tile to the E city tile.
Tile 6: This is probably what the OP has problems with. The tile does border the river and also the city center, but the river is in the SE direction, as is the city center. As you can see from the line I drew there, this aquaduct would end at the same spot it started. That's not exactly a useful aquaduct, so you can't build it there.

Tile 1 and tile 5 also end at a river + city tile, but you can build the aquaduct there because it starts somewhere else.

(oh and minor detail: assuming the river doesn't start in between tile 3 and tile 4, one of them would have an additional aquaduct option that hasn't been drawn, as the river hasn't been drawn)

 

[MaryKB]

Thank you, this helped greatly! I did a "search" in the forums for the word Aqueduct but could not find a thread that way, I apologize for missing the post in the strategy forum.

I guess this has just never come up for me before! I have never had difficulty placing an Aqueduct where I wanted to before this game, where I had the issue with multiple cities! Perhaps I had several good choices before and didn't really look closer, but this time all the spaces it would allow me to place them on had improvements and resources.

I appreciate the explanations!

 

[tedhebert]

I also wonder if you might not also have tiles that have unrevealed strategic resources on them... I know that it has blocked people from making improvement on them, just not sure if it applies to districts also

 

[Leyrann]

I also wonder if you might not also have tiles that have unrevealed strategic resources on them... I know that it has blocked people from making improvement on them, just not sure if it applies to districts also

If they are unrevealed it's possible. The resource will appear under it and be invisible in every way except the tooltip of the tile, but it will immediately be added to your resources once you discover the required tech.

Also it shouldn't be blocking improvements...

 

[BrotherInJah]

In one sentence.

Aqueduct hex and CityCenter hex can't share same river section if that would be only river section adjacent to Aqueduct hex.