Breaching four dams along the Snake River in southeastern Washington — a move favored by enviros — would help a wide range of animals and fish in addition to endangered salmon, according to a report being released today by the U.S. Fish and Wildlife Service. The report says that of four options being considered to help salmon recover, breaching the dams would be the most environmentally beneficial, but the report does not represent the agency’s final recommendation. Meanwhile, the National Marine Fisheries Service today is expected to give approval to a plan to dredge some 23 million cubic yards of sand, silt, and gravel from the Columbia River, a move that enviros say would harm salmon.