ABSTRACT
Earthworks Excavation by machine ne 2.0 m deep 0.22 13.43 6.10 - m3 19.53 2.0 - 3.0 m deep 0.24 14.65 6.65 - m3 21.30 3.0 - 4.0 m deep 0.26 15.87 7.21 - m3 23.08
Backfilling ne 2.0 m deep 0.11 6.71 3.04 - m3 9.76 2.0 - 3.0 m deep 0.11 6.71 3.04 - m3 9.76 3.0 - 4.0 m deep 0.11 6.71 3.04 - m3 9.76
Earthwork support ne 2.0 m deep 0.01 0.43 1.16 - m3 1.58 2.0 - 3.0 m deep 0.01 0.67 2.01 - m3 2.69 3.0 - 4.0 m deep 0.01 0.85 3.37 - m3 4.22
Disposal of excavated material off site 0.55 21.84 7.83 - m3 29.67 to spoil heap average 50 m distant 0.19 2.77 1.29 - m3 4.06
Mass concrete grade C15 Blinding; thickness ne 150 mm deep 1.05 13.43 3.73 92.31 m3 109.48
Surrounds to manholes; thickness ne 150 mm deep 2.30 29.42 7.92 92.31 m3 129.66 150 - 500 mm 1.70 21.75 5.86 92.31 m3 119.92
Benching to bottom of manhole 650 mm diameter 1.00 12.79 3.38 7.66 nr 23.83 900 mm diameter 2.00 25.58 6.76 14.68 nr 47.03 1050 mm diameter 3.60 46.05 12.16 19.99 nr 78.20 1200 mm diameter 4.75 60.76 16.06 26.11 nr 102.93 1500 mm diameter 5.75 73.55 19.44 40.80 nr 133.80 rectangular 3.50 44.77 11.83 23.07 m2 79.67
Reinforced concrete grade C20 Bases; thickness 150 - 300 mm deep 2.30 29.42 7.77 92.91 m3 130.11 300 - 500 mm deep 2.50 31.98 8.45 92.91 m3 133.34
Suspended slabs; thickness ne 150 mm 3.45 44.13 11.67 92.91 m3 148.72 150 - 300 mm 2.70 34.54 9.12 92.91 m3 136.58
Formwork; GRP forms Plain curved, vertical to base and benching 0.60 7.68 2.03 11.13 m2 20.84 to surrounds 0.40 5.12 1.35 8.17 m2 14.64
Bar reinforcement See Series 1700
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
Precast concrete circular manhole rings; BS 5911 Part 1 Shaft rings 675 mm; plain/reinforced 3.20 44.22 23.80 58.16 m 126.17 900 mm; plain/reinforced 3.80 52.51 28.25 76.59 m 157.35 1050 mm; plain/reinforced 4.20 58.03 31.24 83.30 m 172.57 1200 mm; plain/reinforced 4.68 64.67 34.81 100.76 m 200.24 1500 mm; reinforced 5.28 72.96 39.27 156.03 m 268.26 1800 mm; reinforced 6.00 82.91 44.64 211.04 m 338.58 2100 mm; reinforced 6.60 98.60 73.56 398.44 m 570.61 2400 mm; reinforced 7.20 107.57 80.15 503.29 m 691.01 2700 mm; reinforced 8.00 119.52 89.06 582.60 m 791.18 3000 mm; reinforced 8.60 128.48 95.73 792.63 m 1016.84
Reducing slabs + Landing slabs; 900 mm diameter access 1050 mm; plain/reinforced 2.52 34.82 18.73 90.83 nr 144.38 1200 mm; plain/reinforced 2.80 38.69 20.84 117.76 nr 177.29 1500 mm; reinforced 3.16 43.66 23.49 195.98 nr 263.14 1800 mm; reinforced 3.60 49.74 26.79 257.66 nr 334.20 2100 mm; reinforced 4.00 59.76 44.53 526.68 nr 630.96 2400 mm; reinforced 4.40 65.74 49.00 686.65 nr 801.39 2700 mm; reinforced 4.80 71.71 53.43 1103.35 nr 1228.49 3000 mm; reinforced 5.20 77.69 57.90 1400.47 nr 1536.06
Cover slabs 675 mm; plain/reinforced 1.84 25.42 13.70 47.67 nr 86.80 900 mm; plain/reinforced 2.16 29.85 16.08 71.66 nr 117.59 1050 mm; plain/reinforced 2.52 34.82 18.73 77.76 nr 131.31 1200 mm; plain/reinforced 2.80 38.69 20.84 94.59 nr 154.12 1500 mm; reinforced 3.16 43.66 23.49 155.55 nr 222.70 1800 mm; reinforced 3.60 49.74 26.79 221.79 nr 298.32 2100 mm; reinforced 4.00 59.76 44.53 446.78 nr 551.07 2400 mm; reinforced 4.40 65.74 49.00 603.89 nr 718.62 2700 mm; reinforced 4.80 71.71 53.43 1103.35 nr 1228.49 3000 mm; reinforced 5.20 77.69 57.90 1168.00 nr 1303.59
Engineering bricks, Class B; PC £175.00/1000; in cement mortar (1:3) Walls, built vertical,and straight one brick thick; depth ne 1.00 m 2.63 46.42 4.75 5.93 m2 57.10 one brick thick; depth 1.00 - 2.00 m 2.80 49.52 5.06 5.93 m2 60.51 one brick thick; depth 2.00 - 3.00 m 3.04 53.85 5.50 5.93 m2 65.29 one brick thick; depth 3.00 - 4.00 m 3.29 58.19 5.95 5.93 m2 70.06 one brick thick; depth 4.00 - 5.00 m 3.67 65.00 6.64 5.93 m2 77.56 one and a half bricks thick; depth ne 1.00 m 3.61 63.76 6.52 8.09 m2 78.36 one and a half bricks thick; depth 1.00 - 2.00 m 4.03 71.19 7.27 8.09 m2 86.55 one and a half bricks thick; depth 2.00 - 3.00 m 4.41 69.54 7.97 8.09 m2 85.60 one and a half bricks thick; depth 3.00 - 4.00 m 4.79 84.80 8.66 8.09 m2 101.56 one and a half bricks thick; depth 4.00 - 5.00 m 5.18 81.68 9.36 8.09 m2 99.13
Step irons; BS 1247; malleable; galvanised Built into joints; at depths ne 1.00 m 0.11 1.86 0.19 6.98 nr 9.03 1.00 - 2.00 m 0.11 1.86 0.19 6.98 nr 9.03 2.00 - 3.00 m 0.14 2.48 0.25 6.98 nr 9.71 3.00 - 4.00 m 0.17 3.09 0.32 6.98 nr 10.39 4.00 - 5.00 m 0.21 3.71 0.38 6.98 nr 11.07
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
MANHOLES - cont'd
Step irons; BS 1247; malleable; galvanised - cont'd Cast into concrete; at depths ne 1.00 m 0.09 1.17 0.19 6.98 nr 8.34 1.00 - 2.00 m 0.09 1.17 0.19 6.98 nr 8.34 2.00 - 3.00 m 0.12 1.56 0.25 6.98 nr 8.79 3.00 - 4.00 m 0.15 1.95 0.32 6.98 nr 9.25 4.00 - 5.00 m 0.18 2.34 0.38 6.98 nr 9.70
Vitrified clayware channels; bedding in cement mortar in bottom of manhole Half section straight 100 mm 0.54 7.03 0.99 6.30 nr 14.32 150 mm 0.69 8.99 1.32 11.23 nr 21.53 225 mm 0.96 12.51 1.76 26.19 nr 40.46 300 mm 1.29 16.80 2.37 53.08 nr 72.25
Channel bend 100 mm 0.42 5.47 0.77 6.82 nr 13.07 150 mm 0.57 7.43 1.05 11.24 nr 19.72 225 mm 0.84 10.94 1.54 37.57 nr 50.06 300 mm 1.20 15.63 2.21 76.60 nr 94.44
Channel branch 100 mm 0.48 6.25 0.88 14.43 nr 21.56 150 mm 0.78 10.16 1.44 23.65 nr 35.25 225 mm 2.01 26.18 3.70 67.62 nr 97.50 300 mm 3.21 41.82 5.90 160.77 nr 208.49
Half section straight taper 150 mm 0.66 8.60 1.22 18.09 nr 27.90 225 mm 0.99 12.90 1.82 73.39 nr 88.11 300 mm 1.44 18.76 2.65 145.23 nr 166.63
Half section branch channel bend 100 mm 0.42 5.47 0.77 5.54 nr 11.79 150 mm 0.57 7.43 1.05 9.45 nr 17.93 225 mm 0.84 10.94 1.54 35.83 nr 48.31 300 mm 1.20 15.63 2.21 116.19 nr 134.03
Three quarter section branch channel bend 100 mm 0.42 5.47 0.77 15.57 nr 21.82 150 mm 0.57 7.43 1.05 23.63 nr 32.10 225 mm 0.84 10.94 1.54 99.31 nr 111.80 300 mm 1.20 15.63 2.21 166.18 nr 184.02
Spun concrete channels; bedding in cement mortar in bottom of manhole Half section straight 300 mm 1.14 14.85 2.41 9.19 nr 26.44 450 mm 2.25 29.31 4.75 15.50 nr 49.56 600 mm 3.15 41.03 6.64 28.69 nr 76.36 900 mm 5.91 76.99 12.46 55.16 nr 144.60 1200 mm 9.42 122.71 19.86 97.39 nr 239.96
Labours Build in pipes; to brickwork 300 mm 0.28 4.95 0.49 1.04 nr 6.48 450 mm 0.39 6.81 0.68 1.46 nr 8.94 600 mm 0.53 9.29 0.92 1.96 nr 12.16 900 mm 0.70 12.38 1.23 3.46 nr 17.06 1200 mm 0.77 13.62 1.35 6.95 nr 21.92
Item Gang Labour Plant Material Unit Total hours £ £ £ rate £
Build in pipes; to precast concrete 300 mm 1.35 17.59 2.76 1.46 nr 21.80 450 mm 2.01 26.18 4.11 2.08 nr 32.38 600 mm 2.61 34.00 5.33 2.92 nr 42.25 900 mm 3.84 50.02 7.84 6.29 nr 64.15 1200 mm 4.83 62.92 9.86 11.03 nr 83.81
Access covers and frames; coated; BS EN 124; bed frame in cement mortar; set cover in grease and sand Group 5; super heavy duty; solid top 600 x 600 mm; E600 1.80 23.45 2.94 554.38 nr 580.78
Group 4; heavy duty; solid top 600 x 600 mm; double triangular, hinged; D400 1.44 18.76 2.35 190.46 nr 211.57
Group 2; medium duty 600 x 600 mm; single seal; B125 1.17 15.24 1.92 249.31 nr 266.47
Group 2; light duty 600 x 600 mm; single seal; B125 0.87 11.33 1.42 237.96 nr 250.72
Manhole ancillaries Manhole interceptors 100 mm diameter 0.54 7.03 1.10 105.46 nr 113.60 150 mm diameter 0.60 7.82 1.23 151.64 nr 160.68 225 mm diameter 0.90 11.72 1.84 474.60 nr 488.16 300 mm diameter 1.20 15.63 2.41 1018.09 nr 1036.13
Rodding eye points (excluding pipework) 100 mm diameter 1.20 15.63 2.45 39.95 nr 58.03 150 mm diameter 1.35 17.59 2.48 61.31 nr 81.38
