Judge Puts Hold on Arkansas River Art Project A federal judge has ruled that the artist Christo cannot begin construction of his Arkansas River project in Colorado until a lawsuit seeking to block it is decided. The Pueblo Chieftain reports (http://tinyurl.com/8sdw9m9) U.S. District Judge John Kane on Wednesday also granted a request by Christo's company to intervene in the lawsuit. Intervening allows Christo to protect his interests by joining the U.S. Bureau of Land Management as a defendant. Rags Over the Arkansas River Inc., which opposes Christo's Over the River project, sued the BLM in February to block it. Christo wants to hang nearly six miles' worth of luminous fabric for two weeks above parts of a 42-mile stretch of the Arkansas River between Canon City and Salida. He acknowledged in July that opponents' legal challenges would delay the project.