From The Star: Big concrete wall will look like rock – A Spokane firm, Spilker Precast, is producing some 4,000 concrete blocks for an 1,100-foot-long retaining wall at the new K-12 school building site in Coulee Dam. The blocks, which will come in two sizes, one about 1,200 pounds and the other 4,000 pounds, will be used to expand the area of the school site. Owner Timothy Spilker said his company will be finished producing the blocks within a few… http://ow.ly/2xIEr2