SCH Number 1990010240

Project Info

Title

Lindo Lake Restoration

Description

Note: Shortened Review The project proposes excavation and grading of approx 226,000 cy of silt and sediment to recontour the lakebed, deepen the east and west lake basins, and provide retention basins. Approx 27,000 cy of the excavated lake material would be used to stabilize the banks of the lake basins and to create graded mounds surrounding the basins, and for landscaping and habitat creation. The balance of the material (approx 199,411 cy) would be exported off-site. The grading would be designed to create shallow areas in the east lake basin for nesting and fledging young birds. The project would also install underwater features to provide shelter for fish. Following grading, the basins would be lined with bantonite clay up to the water surface level in the majority of the west basin and two ft below the water surface level in the east basin. The bentonite clay liner would assist in reduction of groundwater percolation while improving wetland habitat. The banks of the basins would be stabilized by the placement of a layer of cobble rock extending from one ft below the water surface level in the west basin and two ft below the water surface level in the east basin, to a depth of approx five ft in both basins. Following construction, both basins would feature a max depth of 10 ft, with the upper level of inundation occurring at an elevation of 394 ft above mean sea level.

7 documents in project