Description: This publication is for use by all stakeholders in dredging projects – which include consultants, existing and potential clients, project financiers, insurers and dredging contractors. The publication offers a standard method to establish the capital and related costs of various types of dredging plant and equipment commonly in use. It is divided into three sections: Section 1: Introduction. Section 2: Description of the most common dredgers and dredging equipment used. Section 3: A summary of the principles of cost standards. Section 4: Cost standard tables.

Keywords: rivers and waterways, coastal and marine, procurement, construction management

Contents: 1 Introduction 6, 1.1 Background 6, 1.2 The philosophy behind the cost standards 7, 1.3 Layout of the cost standards 7, 2 Dredging equipment 8, 2.1 Trailing suction hopper dredgers 8, 2.2 Cutter suction dredgers 9, 2.3 Other suction dredgers 11, 2.4 Booster stations 12, 2.5 Backhoe grab and bucket dredgers 13, 2.6 Barges and dumping vessels 15, 2.7 Jack-up pontoons 17, 2.8 Auxiliary equipment 17, 2.9 Pipelines 19, 3 Principles of cost standards 21, 3.1 Basic principles of the cost standards 21, 3.2 Standard value (¤) 22, 3.3 Indexation 22, 3.4 Service life N (years) 22, 3.5 Utilisation period (weeks/years) 22, 3.6 Depreciation and interest D+i (% of V) 23, 3.7 Maintenance and repair costs M+R (% of V) 23, 3.7.1 General 23, 3.7.2 Fixed and variable costs 24, 3.7.3 In-and-out surveys 25, 3.8 Working outside Europe 25, 3.9 Use of the tables 26, 3.10 Use of the equations 26, 4 Cost standard tables 27, Group 1 Trailing suction hopper dredgers 27, Group 2 Cutter suction dredgers 29, Group 3 Other suction dredgers 32, Group 4 Booster stations 34, Group 5 Backhoe, grab and bucket dredgers 35, Group 6 Dumping vessels and barges 39, Group 7 Jack-up pontoons 44, Group 8 Auxiliary equipment 45, Group 9 Pipelines 51, Appendices 57, A1 Notes and definitions 57, A1.1 Weight W (tonnes) 57, A1.1.1 Ship’s construction weight 57, A1.1.2 Added weight 57, A1.1.3 Excluded weights 57, A1.1.4 Breakdown of weights 58, A1.1.5 Lightweight and deadweight table 58, A1.2 Class 58, A1.3 SI units 60, A1.4 Annuity 61, A1.5 Terminology 61, A2 Example computation 62