I know the largest one is the Grand Coulee Dam, but what's the smallest? I know the largest one is the Grand Coulee Dam, but what's the smallest?

One in somebody's back lot making electricity from a small stream on their property so they can live off the grid. There are probably dozens or hundreds in the state, it is just that finding them would be difficult, especially if they used little or no damming of the water way to attract regulators. You might contact people who make and sell small hydro-electric plants and see if they will give you a reference to a user in Washington state that is using their smallest unit. And then you would miss someone who has done a do it your self unit with a homebuilt turbine or wheel driving a automobile alternator to charge batteries.

I am visiting Coulee Dam and would like to know what to expect and what is neat about it. I am visiting Coulee Dam and would like to know what to expect and what is neat about it.

A visit to the immense dam is a worthwhile way to spend an afternoon and evening. The sheer scale of the dam and related works is amazing. At night there is sometimes a laser light show on the face of the dam. There is a visitor center, and occasionally it is possible to walk across the top of the dam and to visit the powerhouses, though with "terrorism" paranoia, that is not as easy as it used to be.

Remember that in summer it gets really hot, especially in the valley below the dam.

The pleasant little town of Coulee Dam is interesting, a planned town built for workers on the dam and a really good example of pre-world War II urban ideas.

Above the city Banks Lake, filled with water pumped from Grand Coulee Dam, has some resorts and the possibility of fishing, swimming and boating. There are are also areas on Lake Roosevelt behind the dam for those activities, but those facilities are some distance from the dam.

For more information
http://www.grandcouleedam.org/

Which dam was it that broke in the upper parts of washington years ago?

I need to know what dam broke a while back in Washington (upper parts) because it wasn't built to well, All i know is that it was right by a town, and when it broke it caused some destruction. please help me on this, i only have two days to get all this information for a debate tournament.

The only one I can think of is the Teton Dam but that was Idaho. It collapsed in 1976 due to poor construction - it was built across a gorge and water seeped through the porous rock of the gorge and into the earthen structure of the dam itself causing small leaks. Attempts were made to repair the leaks but these failed and the small leaks grew until the entire dam collapsed.

The main town downstream of the dam was Rexburgh and this was almost completely destroyed. Some smaller communities were completely destroyed.

Little warning was given and the towns residents had little time to prepare - basically taking to the higher ground and leaving everything behind. 14 people lost their lives.

As mentioned, there was also the Johnstown Dam but that was way back in something like 1893 and that wasn't in Washington either.

A search for 'Teton Dam' should turn up more info.