One of the places I fish sometimes is a small local reservoir. It has a water outlet or intake, which flows back into the natural creek it originally came from. I don't know how much water the city uses, if any. Does anyone know what this is actually called? It's like a giant square hole.

 

 

 

 

I've not fished around this much, but the times I have, I haven't had any success. It doesn't appear to be very fast flowing. So how will largemouth respond to this?

That's outflow. Probably holds some fish as it's structure, an ambush point per se.

6 hours ago, Bazoo said:

It doesn't appear to be very fast flowing.

 

My best luck comes when there's enough current for me to see it. Even better when there's enough current to pull my canoe. Better still when there's enough current to make me work hard to paddle my canoe free of the current. These conditions occur in the spring and after four-inch rainfalls. They don't last long, but they're gold. I see zero current in your photos and would only fish it, as @Big Hands wrote, as cover.

7 hours ago, Bazoo said:

Does anyone know what this is actually called?

When I lived on a lake we had a round one. It went under the road to feed another lake across the road. We called ours a toilet. 😁

 

If there’s enough flow, it can act as a conveyor belt of food starting with the microorganisms and works its way up to your target species.

Can be a good place to fish. Worth checking, for sure.

Its cover. There has to be bass there at times. First thing that popped in my head is "Buzzbait"

4 hours ago, Swamp Girl said:

 

My best luck comes when there's enough current for me to see it. Even better when there's enough current to pull my canoe. Better still when there's enough current to make me work hard to paddle my canoe free of the current. These conditions occur in the spring and after four-inch rainfalls. They don't last long, but they're gold. I see zero current in your photos and would only fish it, as @Big Hands wrote, as cover.

 

A great comment right there! Key to the inflows and outflows are current!

 

This next video shows very clearly what an experienced bass fisherman from Lakeland stumbled onto at Tenoroc mine. He says he caught a tagged bass which the state of Florida pays anyone who catches a tagged bass $100 cash for each one caught. Those fish are part of the state's bass fishing science projects out there.

 

But listen to what old John here says about the inflow and outflow, and then watch how he fished the outflow deep in the jungle. This is a location where bass boats cannot go.

 

The OP asked " How do bass respond to a water outlet/intake?" Situations vary, but in Florida, this shows by example. Kind of funny old John here just stumbles onto it and then tries to keep it a secret while posting video of it for the world!

 

 

This gives me some ideas, thanks all.

 

I see evidence where others are fishing for panfish or cats there, as there are some bobbers stuck around it. Course... poor bobber casting doesn't mean a whole lot to me.

How close will bass get to this outflow? Will they be concerned with going down the drain? 

It’s structure element that will use to locate on. Bass are able to conceive being drawn into the current and then over the edge, they simply realize the current offer a feeding opportunity's. 
Tom

I fish a similar spot on a small lake. Theres not a lot of current flow. Its not a great spot, real shallow but catch an occasional bass from it.

I’m a river guy anyways, but would consider any current worth fishing. Fish are nearly always drawn to flow in some way or another. In summer, I’d 100% fish any current in a lake

Always drawn to inflows and outflows from what I have seen over the years.

 

Current is everything for inflows and outflows. The outflow photographed in this thread is little more than structure- as others noted- with no current flow.

The wife's sisters works at disney. We'll probably eventually visit there, mostly so I can fish some areas in florida. I have no interest in disney.