LOWER SNAKE RIVER, Wash. – If your upcoming Martin Luther King, Jr. Birthday weekend plans include a road trip to visit family and friends on the opposite side of the lower Snake River, you may want to keep in mind that U.S. Army Corps of Engineers dams on the river in Washington are closed to cross-dam public vehicle traffic on federally recognized holidays, unless otherwise announced. Lower Granite Lock and Dam, near Pomeroy, Washington, will be open for public vehicle crossings from 7 a.m. to 5 p.m. on the Jan. 16 holiday.