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Manhole Cover Finishes Detail - in Road Proj Origin Zone Level Type Role Number 232207-70 232207-70-AR-01-XX-DR-C-00200

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Manhole Cover Finishes Detail - in Road Proj Origin Zone Level Type Role Number 232207-70 232207-70-AR-01-XX-DR-C-00200 Mortar bedding and haunching 600 mm x 600 mm clear opening 600 mm x 600 mm clear opening to cover and frame Plastic chambers and rings shall comply with BS EN 13598-1 and NOTES:- cover complying with cover complying with to Clause E6.7 BS EN 124 and BS 7903 Mortar bedding and haunching BS EN 13598-2 or have equivalent independent approval BS EN 124 and BS 7903 1. Refer to drawing CD 002 for general notes. See Clause E2.32 to cover and frame Minimum 2 courses of Class B See Clause E2.32 Cover complying with to Clause E6.7 Sited in driveways/paved areas engineering bricks BS EN 124 and BS 7903 Minimum 2 courses of Class B 2. All dimensions in millimeters unless otherwise or precast concrete Mortar bedding and haunching to Driveways, footways and engineering bricks or precast noted. cover frame seating rings cover and frame to Clause E6.7 landscaped areas - Class B125 Minimum clear access 600 mm concrete cover frame seating rings 150 mm deep concrete collar See Clause E2.32 Minimum clear access 600 mm 3. This drawing to be read in conjunction with other Minimum radius to be 500 mm Minimum internal dimensions Precast concrete manhole for a 100 mm diameter pipe and 180 mm diameter or engineers and architects drawings. sections and cover slab to be 600 mm for a 150 mm diameter 225 mm x 100 mm bedded with mortar, plastomeric In-situ concrete to be GEN3 pipe to allow entry of DOT Type 1 sub base 4. Generally concrete in drainage works to be ST4 Precast concrete manhole or elastomeric seal conforming to (designed to BRE Special Digest 1 Lifting eyes in concrete maintenance equipment (thickness varies) unless otherwise stated. sections and cover slab to be BS EN 1917 and BS 5911-3 Concrete in Aggressive Ground) rings to be pointed or concrete surround bedded with mortar, plastomeric See Clause E2.29 Joints between base and shaft or elastomeric seal conforming to and shaft components to be 5. Similar approved alternative products may be Lifting eyes in concrete Base unit to have all connections BS EN 1917 and BS 5911-3 Clause B3.2.13 for fitted with watertight seals used in place of any suggested proprietary rings to be pointed 150 mm concrete surround with a diameter greater than See Clause E2.29 PC ring diameter product. 2000 minimum In-situ concrete to be GEN3 150 mm set at soffits level Concrete surround 150 mm thick (designed to BRE Special Digest 1 Chamber height 6. The whole external below ground drainage Concrete in Aggressive Ground) (not less than 900 mm) Granular bedding material system shall be installed and tested in Clause B3.2.13 for PC ring diameter accordance with 'Sewers for Adoption 7th The bottom precast section High-strength concrete High-strength concrete Benching slope to Edition'. Any deviation shall be as per the prior to be built into base topping to be brought up topping to be brought up be 1:10 to 1:30 agreement with STW. concrete minimum 75 mm Sited in domestic gardens to a dense, smooth face, to a dense, smooth face, Cover complying with neatly shaped and finished Benching slope to neatly shaped and finished The bottom precast manhole Mortar bedding and haunching to BS EN 124 and BS 7903 to all branch connections be 1:10 to 1:30 to all branch connections ring to be built into base Gardens - Class A15 (minimum thickness 20 mm) (minimum thickness 20 mm) concrete minimum 75 mm cover and frame to Clause E6.7 Construction joint See Clause E2.32 Topsoil Self-cleaning toe holes Construction joint Distance between top of pipe Minimum internal dimensions to be provided where channel Distance between top of pipe and and underside of precast section to be Minimum radius to be 500 mm 180 mm diameter or exceeds 600 mm wide underside of precast section to be Self-cleaning toe holes minimum 50 mm to maximum 300 mm for a 100 mm diameter pipe and 225 mm x 100 mm minimum 50 mm to maximum 300 mm to be provided where channel 600 mm for a 150 mm diameter Inverts to be formed exceeds 600 mm wide pipe to allow entry of DOT Type 1 sub base maintenance equipment (thickness varies) using channel pieces Inverts to be formed 225 mm to underside of channel 225 mm to underside of channel or concrete surround using channel pipes Joints between base and shaft and shaft components to be Base unit to have all connections fitted with watertight seals See Figure B.14 and See Figure B.14 and with soffit levels set no lower Joint to be as close as Clause E6.6.2 than that of the main pipe possible to face of Clause E6.6.2 for rocker pipe details Joint to be as close as possible for rocker pipe details manhole to permit to face of manhole to permit satisfactory joint and satisfactory joint and Granular bedding material subsequent movement subsequent movement Minimum width of benching for Pipe joint with channel landing area to be 500 mm to be located minimum 100 mm Flexible inlet/outlet from the edge of the ladder inside face of manhole and/or bend to the edge of the channel PD[LPXPDQJOH Minimum width of benching to be 225 mm Minimum width of benching Joint to be as close as possible to be 225 mm to face of chamber to permit satisfactory joint and subsequent movement Unused inlet to be Pipe joint with channel to be sealed and watertight Note: Where the access chamber is in located minimum 100 mm inside face of manhole the highway the Highway Authority can have specific requirements :KHUHFKDPEHUVDUHSRVLWLRQHGRQ Note: Opening to be located centrally over corners, always use the main channel by 900 mm shaft and offset approximately 200 mm ILWWLQJDEHQGRQWKHLQOHWDQGRXWOHW for 1200 mm diameter shaft with ladder Typical Inspection Chamber Detail - Type 4 Maximum depth from cover level to soffit of pipe 2 m, non-entry Typical Manhole Detail - Type 1B Typical Manhole Detail - Type 2 Depth from cover level to soffit of pipe 3 m to 6 m Maximum depth from cover level to soffit of pipe 3.0 m 600 mm x 600 mm clear opening 600 mm x 600 mm clear opening Mortar bedding and haunching Mortar bedding and haunching cover complying with cover complying with to cover and frame to cover and frame BS EN 124 and BS 7903 BS EN 124 and BS 7903 to Clause E6.7 to Clause E6.7 See Clause E2.32 See Clause E2.32 Minimum 2 courses of Class B Minimum 2 courses of Class B engineering bricks engineering bricks or precast or precast concrete concrete cover frame seating rings cover frame seating rings Minimum clear access 600 mm Minimum clear access 600 mm Timber edging to form shutter Precast concrete manhole 675 mm maximum to first 900 mm minimum clear sections and cover slab to be ladder rung from cover level access behind ladder bedded with mortar, plastomeric Lifting eyes in concrete or elastomeric seal conforming to rings to be pointed Clause B3.2.13 for BS EN 1917 and BS 5911-3 Concrete surround to cover PC ring diameter Precast concrete manhole sections and cover slab to be Lifting eyes in concrete bedded with mortar, plastomeric Plan rings to be pointed or elastomeric seal conforming to BS EN 1917 and BS 5911-3 Chamber height Cover to BS EN 124 Where Grade A cover is used, Chamber wall to be minimum 125 mm (not less than 900 mm) frame shall be integral with Surface of benching and chamber section as per channel formed monolithically manufacturers proprietary unit Clause B3.2.13 for PC ring diameter with high-strength concrete base or a proprietary liner Benching slope to Surface of benching and be 1:10 to 1:30 channel formed monolithically Benching slope to Where Grade B or C cover is with high-strength concrete be 1:10 to 1:30 base or a proprietary liner Self-cleaning toe holes used, slab shall be 150mm min to be provided where channel ST4 concrete with 150mm exceeds 600 mm wide Precast base unit Self-cleaning toe holes Section surround to be provided where channel exceeds 600 mm wide 150 mm to underside of channel Typical Soft Landscaped Area Inspection Chamber Cover Slab Detail See Figure B.14 and Clause E6.6.2 See Figure B.14 and Joint to be within chamber for rocker pipe details wall to permit satisfactory Joint to be within chamber Clause E6.6.2 joint and subsequent movement wall to permit satisfactory for rocker pipe details joint and subsequent movement Surface to finish level Manhole cover and Minimum width of benching for or 5mm above frame frame to be bedded on landing area to be 500 mm Notes SBR modified mortar from the edge of the ladder See Note D A. Manhole covers shall be orientated to the edge of the channel and haunched in 1:3 cement-sandmortar to lie parallel/square to the highway. Ladder complying with Minimum width of Minimum width of benching B. All dimensions are in millimetres. BS EN 14396 benching to be 225 mm to be 225 mm See Clause E2.37 C. Manhole covers shall comply in all Class B Engineering respects with BS EN 124. brickwork to BS 3921 bedded in 1:3 D. The following classes of cover shall cement/sand mortar 2 be used unless otherwise stated on the courses with no frogs or drawings: holes B125 - manhole covers and gratings in Note: Opening to be located centrally over footways and pedestrian areas.
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