The mouth is expected to reopen Sept. 1 while the other closures are expected to be lifted Nov. 1.
“This emergency closure is designed to maximize the protection of wild spring/summer chinook salmon in Olympic National Park,” read a statement from the park. “The state and tribal forecast for spring/summer chinook is expected to be below the escapement floor of 900 adults.”
Escapement chinook are those that make it past commercial and recreational fisheries to spawning grounds.
“The National Park Service seeks to provide diverse recreational fishing opportunities while ensuring the preservation and restoration of native fish,” Olympic superintendent Sarah Creachbaum said in a prepared statement. “However, with the run size at low numbers it is critical to provide additional protection for Chinook.”