Riset2

Provisional-Excavate and backfill trial pits and trenches as directed by Engineer. Provisional-Excavate to formation and deposit as waste in borrow pit or side cst onto embankments. Provisional-Non Woven geotextile TS60, refer to drawing 01-ECC-DG-017. Provisional-Rock filled gabion baskets. Provisional-Masonry retaining wall upto 2.5 m high,refer to drawing 01-ECC-DG-017. Provisional-Masonry retaining wall upto 5.0m high,refer to drawing 01-ECC-DG-017. Excavate to formation and deposit as waste in borrow pit or side cast onto embankments. Non woven geotextile TS50 or equivalent. Rock filled gabion baskets. Geofabric Reinforcement PEC 200 or equivalet. Source,place and compact granular fill from on-Site borrow pit or adjacent excavations(eg select tuff or rhyolite rock). Riprap Scour and Erosion Protection. Concrete lined drainage ditch Rip Rap Embankmet Protection. Source and place suitable rock material from on site quarry. General site clearance including trees less than 200 mm diameter. Provisional-Clean out silt from existing drainage ditch Topsoil-Excavate and transport to stockpiles for reuse on Landscaping (Provisional). Cut to fill-Excavate suitable fill material,transport to structural embankment,place and compact in layers in road embankment. Cut to waste-Excavate unsuitable material, transport, place and compact in deposition areas as directed on drawings. Including waste material to borrow pit. Rock Excavation-Excavate un-ripable material,transport to structural embankment,plane and compact in layers in road embankment. Excavation and disposal below road formation as directed by Engineer (Provisional). Fill with suitable fill material to formation level (Provisional). Fill with imported granular material to formation level (Provisional). One site collection of large diameter boulders.Install boulders as base layer in embankment fill in swamp ground as directed by Engineer (Provisional). Overhaul of fill material from assumed base case (as per mass haul diagram). Topsoil-transport from stockpiles and place on cut and fill slopes. Hydroseeding to cut and fill slopes. Provisional-Revegation planting as described in Civil Specification clause 4.18. Topsoil-Excavate and transport to stockpile for reuse on landscaping. Cut to waste-Excavate un-ripable material,transport to structural embankment,plane and compact in layers in road embankment. Excavation and disposal below building platforms,hardstandings and external camp area to remove unsuitable soils(Provisional). Fill with suitable fill material to formation level (Provisional). Fill with imported granular material to formation level (Provisional). Overhaul of fill material from assumed base case (as per mass haul diagram). Topsoil-thin layer fill to cut and fill slopes. Hydroseeding to cut and fill slopes. Provisional item-Reinstatement planting with native species Form unlined table drain on exiting roads. Stone pitched dish channel. Baffle shute drain on steep slopes. Riprap to drain turn out. 10 inch steel discharge line. Open Masonary Stormwater Channel on well pad perimeter. Open Masonary Stormwater Channel Cellar Drain (detailed on Drg 03-ECC-DG-107). Open Masonary Channel 300 deep,500 wide between water and mud sumps,incl.1 No.removable steel weir plate. Unlined table drain refer to drawing ECC-DG-011. 150 diameter uPVC subsoil drain and pond underdrain. 300 diameter PE pipe joining water and sumps at invert level installed with removable watertight caps. Riprap to drain turn out,refer to drawing ECC-DG-011. 50 mm sand bedding to HDPE liner. Non Woven Geotextile liner to HDPE liner. HDPE liner to base and side walls. Riprap to drain turn out,refer to drawing ECC-DG-011. Precast drainage 1000 dia,refer to drawing 06-ECC-DG-136. 25 MPa concrete pad as detailed and or specified by the Supplier. 150 mm deep compacted basecourse pad beneath break tank. 1800 mm high boundary fence,refer to drawing 01-ECC-DG-016. Bollard and chain arround well pad sumps,refer to drawing 01-ECC-DG-016. Geotextile(Where Directed by egineer on site). Provisional item-Geotextile (if directd by engineer on site). Provisional item-Geogrid (if directed by engineer on site). General site clearance of borrow pit (provisional sum). Remove overburden above white rock subbase and stockpile for future reinstatement (provisional sum). Restore borrow pit area with stockpiled overburden and topsoil compacted in layers and shapes to grades. Imported well graded rock Subbase 200mm layer.Imported well graded rock Basecourse 100mm layer.Unit rate applies for the following work area codes : WAC09,WAC10,WAC11,WAC12). Imported well graded rock subbase 200mm layer.Imported well graded rock basecourse 100mm layer. (Unit rate applied for work areas not included in unit rate RR 12). Provisional sum-Supply,install and compact well graded rockk basecourse in layers as specified on drawings JA00271-02-ECC-DG-301 to JA00271-02-ECC-DG-315. Imported well graded rock Subbase,placed and compacted in 200mm thick layer,as shown on drawing 01-ECC-DG-014. Double chipseal (bitumen macadam as shown on drawing 01-ECC-DG-014). Road safety barrier. Geotextile (Where Directed by Engineer on site). Provisional item-Geotextile (if Directed by Engineer on site). Provisional item-Geogrd (if Directed by Engineer on site). Import,place,and compact well graded subbasecourse in 200 thick layer as shown on drawing 01-ECC-DG-014. Supply,place,and compact imported well-graded subbase material as directed.Pay item as solid measure. Provisional Sum-Source white rock sub-base from On-Site Borrow Pit,excavate as run of pit,transport and compact.Pay item as solid measure.