MMWD seeks water storage gains by altering dam spillways
The Marin Municipal Water District is exploring options to increase its storage capacity by modifying spillways on reservoir dams. The district board recently authorized spending up to $2.2 million to design proposals for potential projects at Nicasio Reservoir, Soulajule Reservoir, Kent Lake and Alpine Lake. Spillways are the parts of a dam that provide controlled release of water downstream. Work has already been done to determine that it could be possible to alter Seeger Dam at the Nicasio Reservoir with floodgates to add about 3,000 acre-feet of storage capacity. Early estimations indicate it would be around a $5 million construction project.