KAHLOTUS -- Weather has caused another delay in the opening of the navigation lock at Lower Monumental Dam, the Army Corps of Engineers has announced.
The lock, which was supposed to open Monday, now is scheduled to go back in operation at 5 p.m. Saturday. The facility has been closed since Dec. 10 to allow replacement of the downstream lock gate as well as other repairs and maintenance.
High winds and rain at Lower Monumental Dam prevented the precision work needed to ensure the new gate's seals will align properly with the existing lock structure.
Barring further problems, Lower Monumental's return to service will reopen the entire Columbia-Snake River navigation system.