Grayson & Walnut Creeks Levee Improvement at CCCSD Treatment Plant Project
General work description: The work to be done generally consists of raising the western levee along Grayson Creek and Walnut Creek between State Route 4 to the south and BNSF railroad tracks to the north to increase the flood protection for the CCCSD wastewater treatment plant located in Martinez. Work includes placing and compacting levee fill, constructing concrete flood walls, reconstructing a concrete maintenance road, removing railroad tracks, replacing fence and gates, paving driveway conforms and adjusting and relocating various utilities.
GFE
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| Name | Size | |||
| CCC_GFE_8348 | 1.3 MB |
Proposal & Contract
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| Name | Size | ||
| CCC_PC_8348 | 893.1 KB |
Reference Documents
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| Name | Size | |||
| S1_Geotechincal Investigation Report_3.24.2023 | 27.9 MB | |||
| S2_Geotechnical Engineering Services letter_10.17.2025 | 19.9 MB | |||
| S3_FAA Letters of Determination | 434.4 KB |
Special Provisions
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| Name | Size | ||
| CCC_SP_8348 | 81.1 MB |

