About 3 years ago,a house was built to our north where the property was being developed with new housing. The owner chose to build up their yard about 3 feet because of drainage. They brought in OLD concrete freeway barriers and positioned them the entire 110 feet of the property line, then proceeded to bring in loads of dirt to bring up the yard level. They did landscape their side of the wall but did nothing on our side. We have been left to look at this ugly wall for 3 years now. We are stumped as to what to do with it as we live in the NW and winters are cold, bushes that wouldn't drop their leaves grow slow and facing it would be very expensive. We feel it has depreciated our property value and we aren't the only ones that don't like looking at it. Because of the vastness of it we really need help. Any ideas?