StreamSmart Crossings Mike Mullen, Division of Land Resource - PowerPoint PPT Presentation

StreamSmart Crossings Mike Mullen, Division of Land Resource Regulation MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION Protecting Maine’s Air, Land and Water

Maine Department of Environmental Protection • Main Office and Central Maine Region 28 Tyson Drive, Augusta (207)287-7688 * (800)452-1942 • Eastern Maine Region 106 Hogan Road, Bangor (207)941-4570 * (888)769-1137 • Southern Maine Region 312 Canco Road, Portland (207)822-6300 * (888)769-1036 • Northern Maine Region 1235 Central Drive, Presque Isle (207)764-0477 * (888)769-1053 MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

This Is A Stream If It Has: • A channel between defined banks and at least 2 of the following: – Has a scoured mineral bed – Flows at least 6 months/year – Mapped on a U.S.G.S. topo map as a solid or dashed blue line – Contains fish, aquatic animals or aquatic vegetation – Is devoid of upland vegetation MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

Culvert Replacement Exempt from permitting if: • Erosion controls are used • Does not block fish passage • Installed to match natural grade to avoid drops or perching • Embedded in stream a minimum of 1 foot or 25% Diameter (max 2 feet) MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

Permit By Rule (PBR) • Fast and easy permitting process • For a project to qualify for Permit-by-Rule, it must be designed and constructed in compliance with all applicable Chapter 305 Rules • Chapter 305 Section 10 covers stream crossings (bridges, culverts, fords) MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

Stream Crossings • Fill slopes must be stabilized • 3 times the cross sectional area of the stream channel OR accommodate 25-year storm • Surface water must be diverted through vegetated buffer areas of at least 25’ • If working in less than 3’ of water, must divert water around work area MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

Stream Crossings - Culverts Culverts: • No longer than 75 feet • Follow alignment and grade of stream • Be placed at or below streambed • Back fill must be compacted • Inlet and outlet banks must be riprapped MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

Rule Requires A Water Management Diversion If Working In Is Critical Less Than 3’ Of Water Jersey Barrier Cofferdam Sandbag Cofferdam MAINE DEPARTMENT OF ENVIRONMENTAL PROTECTION www.maine.gov/dep

www.maine.gov/dep