Minnesota Department of Transportation (MnDOT) · 2025 Standard Specifications for Construction
Section 3874 — Filter Berm
Minnesota 2025 Standard Specifications for Construction, Section 3874. Full text, cross-references and related pay items on BuildSpec.
3874 FILTER BERM 3874.1 SCOPE Provide filter berms to slow, filter, and divert storm water runoff and other pollutant water . 3874.2 REQUIREMENTS Provide the following types of filter berms. Dimensions may vary by the C ontract: A Type 1 — Compost Provide compost berms meeting the following requirements and characteristics: (1) Grade 2 Compost per 3890, “Compost” (2) Trapezoidal shape with 5 foot base width (3) Minimum height 2 feet in loose volume (4) 2:1 (Vertical:Horizontal) side slopes B Type 2 — Slash Mulch Provide slash mulch berms meeting the following requirements and characteristics:…
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