Timber outlet structure (1955) - design to prevent sea from filling the outlet channel with shingle.
Description of option
An outlet structure to prevent the sea from filling in the outlet channel with shingle.
Opening, closing, and lake level control description
An outlet structure designed to assist with mechanical opening reliability and reduce effort required to excavate opening.
above 300 cumecs
Construction cost est:
1955: Timber = 90,000 pounds, or Steel sheet piling return walls = 94,000 pounds
1969: Timber = 157,500 pounds or $315,000 (Dalmer, 1970).
Fish passage benefit rating
Potential running impacts or benefits
Intended to improve mechanical opening reliability and reduce effort required to excavate opening.