Judge orders re-do of redwoods road plan SAN FRANCISCO, April 6 (UPI) -- A federal judge has ordered the California Department of Transportation to fix flaws in its environmental study for a road through a state park redwood grove. The study, intended to clear the way for widening a 1-mile stretch of U.S. Highway 101 at Richardson Grove State Park in Humboldt County, contains errors that "raise serious questions about whether Caltrans truly took a hard look at the effects of the project and made an informed decision," U.S. District Judge William Alsup of San Francisco said. Highway 101 narrows to a two-lane road bordered closely by redwoods as it enters the state park 200 miles north of San Francisco, and long freight-hauling trucks are barred from the road because of safety concerns, requiring lengthy detours, the San Francisco Chronicle reported. Caltrans said its plan would require cutting down 54 trees including six redwoods but concluded the construction would cause no significant environmental harm. But Alsup said the Caltrans study failed to notice a large tree just 5 yards from the roadside, had understated the diameter of one redwood by 20 inches, and underestimated the likely damage to tree roots. The judge told Caltrans to correct its findings and reconsider its conclusions, while opponents have called for scrapping the project entirely. "Caltrans wants to cut through, injure and pave over the roots of giant redwoods in a state park for the sake of a few more oversized trucks speeding through the grove, and expects us to believe there won't be any damage," Peter Galvin of the Center for Biological Diversity said. Caltrans officials have said the agency would comply with Alsup's orders.