Friends of the Columbia Gorge, Oregon Physicians for Social Responsibility, and Columbia Riverkeeper filed a motion Monday to intervene in opposition to Union Pacific’s federal lawsuit seeking a ruling that Wasco County and National Scenic Area ordinances cannot stop the railroad’s plans for a second mainline track around Mosier.  All three organizations maintain the issue should be heard by the Columbia River Gorge Commission, where UP has appealed the decision by the Wasco County Commission to deny a permit for the track.  In their motion, the three groups say they have significant interests at stake in the decision and denying their ability to intervene would impair their ability to protect those interests.  In its lawsuit, Union Pacific claims the Interstate Commerce Act pre-empts County and Scenic Area ordinances, and that use of the County’s Scenic Area land use ordinances to stop the expansion is unconstitutional.