Standing rain water

I need ideals for the standing rain water that collects in our backyard. It collects at the far back fence that meet up with 3 neighbors(our backyard is about 1/2 acre deep with a neighbor each side). It collects so much a one man row boat can float...

alone

Percolation problems are hard to fix. What you might want to consider is taking some railway timbers and stacking them 5 high along the back fence. Fill it near the top with regular soil then the to the top with potting soil. Add some hydrangeas (very pretty flower) that require a lot of water. If you cant drain the water, then hide it.

We had the same problem, then we realised that the neighbours didn't have any openings in their walls and that sorted out the problem.

Alternatively (but this is if you live in a climate where it rains quite often) get a willows tree and plant it in your back yard where it overflows, those trees take in a HUGE amount of water and it should fix your problem. (we fixed a constantly overflowing drain with it)

Create a retain wall around the wides part of the water and then put a bridge over it or you can add a lot of clay or fill dirt and make a high ground and place mature trees that collect the water...just keep adding dirt to circle in the water. we had water that the neighbor push via pipe to the end of our yard, well I added trees, good dirt, and planted a heck of a lot of fruit trees, mature trees and plants to suck up the water and I also put in rail road tie type of things around my flower beds to keep the water from coming up to the house and staying around the flower beds...
just keep adding more and more clay, dirt and plant trees and plants and raise the level of the ground it won't happen over night.