BID - MPRB - Soils , Sands & Other Aggregates

2026-11-03

1 . Topdressing Sand • 100 % washed sand • 1 % or less of total sand @ 1 . 0mm in particle size • 75 % or more of total sand @ 0 . 5 to 0 . 25mm in particle size • 20 % or less of total sand @ 0 . 15mm in particle size 2 . Bunker Sand • 100 % Washed Sand o 1 % or less of total sand @ 1 . 0mm in particle size o 75 % or more of total sand @ 0 . 5 to . 25mm in particle size o 20 % or less of total sand @ 0 . 15 in particle size • Silt and Clay content may not exceed 3 % • The PH of the final soil mixturemay not exceed 7 . 8 nor be less than 6 . 5 3 . 80 / 20 Green Construction Soils • 80 % Washed Sand o Silt and clay content of may not exceed 3 and the PH of the sand may not exceed o 7 . 8 nor be less than 5 . 5 . o 8 % or less of total sand 1 . 0mm in particle size o 75 % or more of total sand 0 . 25 to 1 . 0mm in particle size o 20 % or less of total sand 0 . 05 to 0 . 25mm in particle size • 20 % Northern Reed Sedge Peat o Peat shall be prescreened over a 1 / 8 " x 1 / 4 " screen prior to mixing with sand . o PH of peat must be from 4 . 1 to 4 . 8 . o Minimum organic matter content of 85 % by weight as determined by loss of ignition ( ASTM 02974 - 87 - Method D ) • The final soil mixture shall be screened a final time to a 5mm size . The PH of the final soil mixture shall not exceed 7 . 0 4 . 60 / 20 / 20 Tee Construction Soils • 60 % Washed Sand o Silt and clay content of may not exceed 3 and the PH of the sand may not exceed 7 . 8 nor be less than 5 . 5 o 6 % or less of total sand 1 . 0mm in particle size o 75 % or more of total sand 0 . 25 to 1 . 0mm in particle size o 20 % or less of total sand 0 . 05 to 0 . 25mm in particle • 20 % Northern Reed Sedge Peat o Peat shall be prescreened over a 1 / 8 " x 1 / 4 " screen prior to mixing with sand o PH of peat must be from 4 . 1 to 4 . 8 o Minimum organic matter content of 85 % by weight as determined by loss of ignition ( ASTM D2974 - 87 - Method D ) • 20 % Loam Sand Black Dirt o No more than 60 % sand o No more than 30 % silt o No more than 20 % clay • The final soil mixture shall be screened a final time to a 5mm size . The PH of the final soil mixture shall not exceed 7 . 0

Minnesota

2026-05-02