HU TECHNICAL SERVICES DEPARTMENT ROAD INFRASTRUCTURE MANAGEMENT DIRECTORATE ROADS PROVISION DIVISION 30 Archie Gumede Place, Durban, 4001 P O Box 680 Durban, 4000 Tel: 031 311 7601, Fax: 031 311 7225 www.durban.gov.za REFERENCE No. 1R-32862 ROUTINE STRUCTURAL MAINTENANCE REPAIRS TO MUNICIPAL-OWNED RETAINING WALLS WITHIN THE ETHEKWINI METROPOLITAN AREA FOR 18 MONTHS ADDENDUM NO. 1 ADDENDUM TO TENDER DOCUMENT The tender is to note that the contents of this Addendum to Tender Document for reference no. 1R - 32862, as described above, will form part of the tender documentation as originally compiled. 1. The following constitute a change to the tender document. Item : Bill of quantities Current on the tender document : The Bill of quantities had not been included with the original tender document at the time of tender advertising. Correction to tender : Tenderers are required to use the Bill of Quantities attached to this addendum H. Mbina Project Manager Roads Provision Division C2.2.1 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary C.2.2.1 : INDEX TO BILL OF QUANTITIES SECTION 1 PRELIMINARY AND GENERAL PART 0102 C1.2 GENERAL REQUIREMENTS AND PROVISIONS PART 0103 C1.3 CONTRACTOR’S SITE ESTABLISHMENT AND PART 0105 C1.5 ACCOMMODATION OF TRAFFIC SECTION 2 SITE CLEARENCE PART 0106 C1.6 CLEARING AND GRUBBING PART 0107 C1.7 LOADING AND HAULING SECTION 3 MAINTENANCE REPAIRS PART 1206 C12.6 MECH STABILISED FILL AND GABIONS PART 1304 C13.4 CONCRETE PART 1401 C14.1 ACCESS FOR BRIDGE REHABILITATION PART 1404 C14.4 SURFACE AND STRUCTURAL REPAIR PART 1405 C14.5 ANCHORING OF REINFORCEMENT, GROUTI PART 1407 C14.7 PROTECTIVE COATINGS AND TREATMENTS PART 1409 C14.9 REPAIR AND REPLACEMENT OF ANCILLAR C2.2.2 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary C.2.2.2 : BILL OF QUANTITIES SECTION 1 PRELIMINARY AND GENERAL PART C1.2 GENERAL REQUIREMENTS AND PROVISIONS Item Clause 0102 Unit Description Amount Rate Quantity Environmental Managemenet 1 C1.2.1.1 months 0 months 0 Monitoring of compliance with and reporting on the EMP 2 C1.2.2.6/PS.C 1 Preparation and submission of contract consumables (Progress photos, GIS Maps, Printing) Stakeholder Liaison 3 C1.2.4/PS.C1 Allow for a CLO to be appointed PC Sum 100000 4 Handling fee on the above item % 100000 1.00 100,000.00 1.00 0.00 Health and Safety 5 C1.2.5.1 Lump sum 0 Preparation and submission of the health and safety plan 6 C1.2.5.2 Implementation of health and safety plan months 0 7 C1.2.6.2 Preventive and/or mitigation measures PC Sum 0 sum 1 Site Security 8 PS.11 Provision of security on site to guard against any disruption of the works throughout the duration of the contract R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES PART Item Clause 0103 C1.3 CONTRACTOR’S SITE ESTABLISHMENT AND Description 1 C1.3.1.1 Unit Amount Rate Quantity Lump sum 0 months 0 Fixed obligations 2 C1.3.1.3 Time-related obligations 3 Allow for the following Additional items which the tenderer requires to be priced seperately a) sum 1 4 b) sum 1 5 c) sum 1 TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES R C2.2.3 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary PART Item Clause 1 C1.5.2 / PS.C1 2 C1.5.1.1 / PS.C1 0105 C1.5 ACCOMMODATION OF TRAFFIC Description Accommodation of vehicular traffic when required (Rate to include all necessary requirements for traffic accomodation) Unit Amount Rate Quantity months 0 months 0 Accommodation of pedestrian and nonmotorised traffic (Rate to include all necessary requirements for traffic accomodation) TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES R C2.2.4 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary SECTION 2 SITE CLEARENCE PART C1.6 CLEARING AND GRUBBING Item Clause 0106 Unit Description Amount Rate Quantity Clearing 1 C1.6.1.1 ha 0.5 ha 0.5 ha 0.1 ha 0.5 no 10 Clearing with machines and some hand labour where necessary Clearing with hand labour only when labour enhanced work is specified 2 C1.6.1.2 Grubbing 3 C1.6.2.1 Grubbing with machines and some hand labour where necessary Grubbing with hand labour when labour enhancement work is specified or it is not practical to use a machine 4 C1.6.2.2 Removal and grubbing of large trees and tree stumps 5 C1.6.3.1 Girth equal to or exceeding 1,0 m up to and including 2,0 m 6 C1.6.3.2 Girth exceeding 2,0 m up to and including 3,0 m no 3 7 C1.6.3.3 Girth exceeding 3,0 m no 2 Removal of buildings 8 C1.6.4.1 Removal and disposal of retaining wall concrete members m3 50 9 C1.6.4.1 Removal of buildings and structures: Demolition of brickwork retaining structures m3 50 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES PART Item Clause 0107 C1.7 LOADING AND HAULING Description Unit Quantity Hauling material for use in the works 1 C1.7.2.1(a)/PS .C1 2 C1.7.2.1(b) m3 * km 1000 m3 * km 100 Hauling material for use in the Works and off-loading it on the site of the Works:(a) Soil, gravel, crushed stone and pavement layer material (b) Boulders and hard material Part Continued on next page Rate Amount C2.2.5 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary Part Continued PART Item Clause 0107 C1.7 LOADING AND HAULING Description Unit Quantity Amount Rate Hauling material to spoil 3 C1.7.2.2(a)/PS .C1 Hauling material to spoil and off-loading it at a designated spoil area:(a) Cleared and grubbed material (organic matter and all other unsuitable or waste material) m3 * km 1000 4 C1.7.2.2(b)PS. C1 (b) Soil and gravel material m3 * km 200 TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES R C2.2.6 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary SECTION 3 MAINTENANCE REPAIRS PART C12.6 MECH STABILISED FILL AND GABIONS Item Clause 1206 Description Unit Quantity Amount Rate Segmented/Geolock retaining walls 1 C12.6.2 Excavation for wall base foundation m3 20 2 C12.6.3 Concrete for wall base foundation (Class C12/15-20) m3 10 3 C12.6.4.2 Reinforcing steel in wall base foundation: High tensile steel t 0.5 4 C12.6.10.1 Fixing mechanism to facings: Supply and install sliders inbetween the blocks to close the wall m 100 5 C12.6.11 Backfill imported fill in layers not exceeding 300mm and compact to 95% Mod. A.A.S.H.T.O m3 100 6 C12.6.12.2 Facings TB 500: For concrete block wall facing m2 50 7 C12.6.12.2 Facings TB 300: For concrete block wall facing m2 50 no 500 Foundation trench excavation: Excavating in all material situated within the following depth ranges below the surface level (a) 0 m to 1,5 m m3 200 10 C12.6.14.1(b) (b) Exceeding 1,5 m and up to 3,0 m m3 50 11 C12.6.15 Surface preparation for bedding the gabions m2 300 12 C12.6.16.2 Supply and install PVC coated gabion boxes complete with handpacked rockfil (1x1x1.5 m) m3 200 13 C12.6.16.4 Supply and install PVC-coated gabion mattresses (0.3x1x3 m) m3 200 14 C12.6.16.2 Supply and install PVC coated gabion boxes complete with handpacked rockfil (1x1x2 m) m3 200 15 C12.6.17 Supply and install drainage grade B Geotextile m2 400 Drainage 8 C12.6.13 50mm dia. PVC weepholes Gabion box retaining walls 9 C12.6.14.1(a) TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES R C2.2.7 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary PART Item Clause 1304 C13.4 CONCRETE Unit Description 1 C13.4.1.1(a) Class C12/15-20 concrete for Blinding m3 20 2 C13.4.1.1(b) Class C25/30-20 concrete to horizontal surfaces m3 60 3 C13.4.2.1 Concrete class C25/30-20 to horrizontal surfaces: Commercially- Sourced concrete m3 60 4 C13.4.2.1 Concrete class C25/30-20 to vertical and sloping surfaces : CommerciallySourced concrete m3 10 5 C13.4.5.1 Curing and surface protection of cast in situ concrete, as and where specifically required to horizontal, vertical and sloping structural surfaces (Tenderer to specify method of curing): m2 20 6 C13.3.1.1(c) Supply and install Welded Steel Fabric: Mesh ref.: 193 to footpaths t 0.5 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES PART Item Clause 1401 Amount Rate Quantity C14.1 ACCESS FOR BRIDGE REHABILITATION Unit Description Amount Rate Quantity Temporary access structures and work platforms 1 C14.1.1.1(a)(1) Access and platforms to locations as described as well as dismantling and removal at completion (heights assessed by Contractor): (a)) Rehabilitation to reinforced concrete retaining wall and bridge soffis no 2 2 C14.1.5 Provision of designs and drawings of access structures and platforms by an ECSA Registered Professional Engineer or Technologist sum 1 3 C14.1.7 Accommodation of Vehicular and Pedestrian Traffic at Access Structures months 3 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES PART Item Clause 1404 C14.4 SURFACE AND STRUCTURAL REPAIR Description Unit Quantity 1 C14.4.1 Supply and apply Class C25/30 Cementitious mortar or concrete to spall and uneven concrete surfaces l 100 2 C14.4.2 Supply and apply Epoxy mortar to damaged structural surfaces l 100 Part Continued on next page Rate Amount C2.2.8 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary Part Continued PART Item Clause 1404 C14.4 SURFACE AND STRUCTURAL REPAIR Unit Description Curing of repair surfaces by an approved curing method 3 C14.4.4.1 m2 50 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES PART Item Clause 1405 C14.5 ANCHORING OF REINFORCEMENT, GROUTI Unit Description 1 C14.5.2 Preparation of retaining wall contact surfaces for grouting 2 C14.5.3.2 100 Grouting for: Gap filling using cementatious grout to prepared surfaces l 100 3 C14.5.5 Surface preparation and surface sealing for crack filling on concrete surfaces. m 100 4 C14.5.7.1 Crack filling: Seal/Repair cracks using non-shrink grout or similar approved. m 100 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES Item Clause 1407 C14.7 PROTECTIVE COATINGS AND TREATMENTS Unit Description Cleaning and preparation of concrete surfaces using high-pressure water jetting m2 500 2 C14.7.2 Application of Anti-graffitti protective coatings and treatments to concrete surfaces m2 200 3 C14.7.2 Application of approved protective coatings and treatments on concrete retaining walls to prevent water ingress m2 200 4 C14.7.3 On site monitoring and supply of written product performance guarantee sum 1 5 C14.7.4 Trial sample panels m2 3 R TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES Item Clause 1409 Amount Rate Quantity 1 C14.7.1 PART Amount Rate Quantity m2 PART Amount Rate Quantity C14.9 REPAIR AND REPLACEMENT OF ANCILLAR Description Unit Rate Quantity 1 C14.9.1 Removal of debris from retaining wall expansion gaps m 50 2 C14.9.2 Clear weephole drainage system no 100 3 C14.9.7 Removal and reinstatement of brickwork retaining walls m2 20 4 C14.9.14.1 Bridge number plates: Refurbishment of existing plates no 10 5 C14.9.14.2 Bridge number plates: New number plate no 5 Part Continued on next page Amount C2.2.9 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary Part Continued Item Clause PART 1409 C14.9 REPAIR AND REPLACEMENT OF ANCILLAR Description Unit Quantity 6 C14.9.6 Repair of handrails: (a) Metalic handrailing systems m 50 7 C14.9.6 (b) Polycrete handrailing systems m 50 TOTAL CARRIED TO C.2.2.3 : SUMMARY OF BILL OF QUANTITIES Amount Rate R C2.2.10 PRICING DATA 1R-32862 Routine maintenance to municipal-owned retaining walls for 18 months within the eThekwini Metropolitan boundary C.2.2.3 : SUMMARY OF BILL OF QUANTITIES Section 1 PRELIMINARY AND GENERAL 2 3 R 0102 C1.2 GENERAL REQUIREMENTS AND PROVISIONS R 0103 C1.3 CONTRACTOR’S SITE ESTABLISHMENT AND R 0105 C1.5 ACCOMMODATION OF TRAFFIC R SITE CLEARENCE R 0106 C1.6 CLEARING AND GRUBBING R 0107 C1.7 LOADING AND HAULING R MAINTENANCE REPAIRS R 1206 C12.6 MECH STABILISED FILL AND GABIONS R 1304 C13.4 CONCRETE R 1401 C14.1 ACCESS FOR BRIDGE REHABILITATION R 1404 C14.4 SURFACE AND STRUCTURAL REPAIR R 1405 C14.5 ANCHORING OF REINFORCEMENT, GROUTI R 1407 C14.7 PROTECTIVE COATINGS AND TREATMENTS R 1409 C14.9 REPAIR AND REPLACEMENT OF ANCILLAR R SUB TOTAL R ADD VAT (15%) - (only if a registered VAT Vendor) R TOTAL CARRIED TO FORM OF OFFER AND ACCEPTANCE (C.1.1) R