2020 Sediment Reduction Initiative Stormwater Basin Retrofit

Base Bid: 1. Erosion control, re-grade basin bottom, sediment forebay and final vegetation per plan LS Unit 3 Quantity 2. 2 AASHTO #57 Stone Berm CY Unit 150 Quantity 3. Concrete weir wall per plan LS Unit 4 Quantity 4. Retention basin floor mix SF Unit 182254 Quantity 5. Native wildflower mix SF Unit 106950 Quantity 6. Lawn seeding SF Unit 33210 Quantity 7. R-4 rip rap, 18” thick SY Unit 119 Quantity 8. R-5 rip rap, 22” thick SY Unit 48 Quantity Alternate 1: 1. Erosion control, re-grade basin bottom, sediment forebay and final vegetation per plan LS Unit 1 Quantity 2. Concrete weir wall per plan LS Unit 1 Quantity 3. Lawn seeding SF Unit 21369 Quantity 4. R-3 rip rap, 6" thick SY Unit 123 Quantity Alternate 2: 1. Erosion control, re-grade basin bottom, sediment forebay and final vegetation per plan LS Unit 1 Quantity 2. Concrete weir wall per plan LS Unit 1 Quantity 3. Retention basin floor mix SF Unit 14100 Quantity 4. Native wildflower mix SF Unit 10756 Quantity 5. Lawn seeding SF Unit 13535 Quantity

Division 03 -	Concrete, Precast Concrete.
Division 31 -	Earthwork, Erosion and Sedimentation Controls.
Division 33 -	Utilities, Storm Drainage Utilities, Storm Utility Drainage Piping, Storm Utility Water Drains, Ponds and Reservoirs, Storm Drainage Structures.