Stormwater Drainage (R11) - Headwalls

The Model (Road) Drawings show standard details of components and construction techniques to be used in roadworks on Roads and Maritime Services -funded infrastructure or infrastructure that will become the property of Roads and Maritime Services in the future. Model Drawings are referenced in Roads and Maritime Services Roadworks Specifications and may form part of tender documents for Roadworks Contracts let by Roads and Maritime Services.

Comments, queries or suggestions about Model Drawings can be sent by email to ModelDrawings@rms.nsw.gov.au.

MD.R11.A01.B - Installation of Buried Concrete Pipes Type HS3 Support

MD.R11.A01.B - Installation of Buried Concrete Pipes Type HS3 Support

MD.R11.A02.A.1 - Concrete Headwalls Single Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A02.A.1 - Concrete Headwalls Single Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A03.A.2 - Concrete Headwalls Single Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A03.A.2 - Concrete Headwalls Single Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A04.A - Concrete Headwalls Single Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A04.A - Concrete Headwalls Single Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A05.A.1 - Concrete Headwalls Double Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A05.A.1 - Concrete Headwalls Double Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A06.A.2 - Concrete Headwalls Double Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A06.A.2 - Concrete Headwalls Double Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A07.A - Concrete Headwalls Double Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A07.A - Concrete Headwalls Double Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A08.A.1 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A08.A.1 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A09.A.2 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A09.A.2 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A10.A - Concrete Headwalls Triple Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steep

MD.R11.A10.A - Concrete Headwalls Triple Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A11.A.1 - Concrete Headwalls Four Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A11.A.1 - Concrete Headwalls Four Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A12.A.2 - Concrete Headwalls Four Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper

MD.R11.A12.A.2 - Concrete Headwalls Four Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A13.A - Concrete Headwalls Four Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A13.A - Concrete Headwalls Four Cell 1050mm to 1800mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A14.A.1 - Concrete Headwalls Five Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A14.A.1 - Concrete Headwalls Five Cell 300mm to 900mm dia with Concrete Apron (2 to 1 Batter or steeper)

MD.R11.A15.A.2 - Concrete Headwalls Five Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A15.A.2 - Concrete Headwalls Five Cell 300mm to 900mm dia with Rock Mattress Protection (2 to 1 Batter or steeper)

MD.R11.A16.A.1 - Concrete Headwalls Single Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A16.A.1 - Concrete Headwalls Single Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A17.A.2 - Concrete Headwalls Single Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatt

MD.R11.A17.A.2 - Concrete Headwalls Single Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter)

MD.R11.A18.A.1 - Concrete Headwalls Double Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A18.A.1 - Concrete Headwalls Double Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A19.A.2 - Concrete Headwalls Double Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatt

MD.R11.A19.A.2 - Concrete Headwalls Double Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter)

MD.R11.A20.A.1 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A20.A.1 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A21.A.2 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatt

MD.R11.A21.A.2 - Concrete Headwalls Triple Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter)

MD.R11.A22.A.1 - Concrete Headwalls Four Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A22.A.1 - Concrete Headwalls Four Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A23.A.2 - Concrete Headwalls Four Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter

MD.R11.A23.A.2 - Concrete Headwalls Four Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter)

MD.R11.A24.A.1 - Concrete Headwalls Five Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A24.A.1 - Concrete Headwalls Five Cell 300mm to 900mm dia with Concrete Apron (3 to 1 Batter or flatter)

MD.R11.A25.A.2 - Concrete Headwalls Five Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter

MD.R11.A25.A.2 - Concrete Headwalls Five Cell 300mm to 900mm dia with Rock Mattress Protection (3 to 1 Batter or flatter)

MD.R11.A26.A.1.pt1 - Tapered Concrete Median Headwall (450mm)

MD.R11.A26.A.1.pt1 - Tapered Concrete Median Headwall (450mm)

MD.R11.A26.A.1.pt2 - Tapered Concrete Median Headwall (525 - 750mm)

MD.R11.A26.A.1.pt2 - Tapered Concrete Median Headwall (525 - 750mm)

MD.R11.A27.A.pt1 - Concrete Headwalls Single Cell 1200mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter) (Sheet

MD.R11.A27.A.pt1 - Concrete Headwalls Single Cell 1200mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter) (Sheet 1)

MD.R11.A27.A.pt2 - Concrete Headwalls Single Cell 1200mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter) (Sheet

MD.R11.A27.A.pt2 - Concrete Headwalls Single Cell 1200mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter) (Sheet 2)

MD.R11.A28.A.pt1 - Concrete Headwalls Single Cell 1500mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steep

MD.R11.A28.A.pt1 - Concrete Headwalls Single Cell 1500mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steeper) (Sheet 1)

MD.R11.A28.A.pt2 - Concrete Headwalls Single Cell 1500mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steep

MD.R11.A28.A.pt2 - Concrete Headwalls Single Cell 1500mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steeper) (Sheet 2)

MD.R11.A29.A.pt1 - Concrete Headwalls Single Cell 1650mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steep

MD.R11.A29.A.pt1 - Concrete Headwalls Single Cell 1650mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steeper) (Sheet 1)

MD.R11.A29.A.pt2 - Concrete Headwalls Single Cell 1650mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steep

MD.R11.A29.A.pt2 - Concrete Headwalls Single Cell 1650mm dia CMP with Rock Mattress Protection (1.5 to 1 Batter or steeper) (Sheet 2)

MD.R11.A30.A - Flat Concrete Headwall for up to 600 x 300 Single Concrete Box Culvert

MD.R11.A30.A - Flat Concrete Headwall for up to 600 x 300 Single Concrete Box Culvert

MD.R11.A31.A - Flat Concrete Headwall for up to 300 x 450 Single Pipe Culvert

MD.R11.A31.A - Flat Concrete Headwall for up to 300 x 450 Single Pipe Culvert

MD.R11.A32.B - Cast-in-Situ Curtain Wall for Use with Precast Headwalls - Pipe Diameter up to 1200mm

MD.R11.A32.B - Cast-in-Situ Curtain Wall for Use with Precast Headwalls - Pipe Diameter up to 1200mm

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