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Schedule of Rates

Table of Contents



Welcome to the fifteenth edition of the flagship publication of IndSTT, titled Schedule of Rates for Construction Contracts Employing Trenchless Technology 2023 (SoR). Like our earlier publications, this book also aids in planning, budgeting, bidding, and contracting for trenchless construction contracts. These techniques provide smart and intelligent solutions for several challenges faced by utility owners. Trenchless solutions, however being state-of-art, make cost estimation a challenging affair. SoR is the perfect tool to assist project stakeholders in conducting techno-commercial evaluation of trenchless project proposals. Since 2002, IndSTT has been publishing such schedule of rates on a regular basis, and now is proudly presenting the fifteenth edition of this important publication to serve the Indian trenchless industry.

Unit rates of work items play an important role in standardisation process as they are linked to certain specifications that are standardized for certain scope of operations and their measurement modes. This schedule of rates provides both, for the set of approved Trenchless Techniques, and their support activities.

An additional feature of this SoR is the inclusion of a section dedicated to the minimum technical competencies of the trenchless operators and technicians. It is developed based on work components required to be executed to achieve success in construction works. This new section provides benchmarks for skill evaluation of trenchless operators & technicians in such techniques. Without such benchmarks, the only inputs to evaluate the operator skills used to be the experience certificates with suspect authenticity. With the initiation of trenchless skill testing & certification during the last year, IndSTT has introduced a transparent system for trenchless worker skill assessment enabling the project stakeholders in weeding out untrained operators or individuals with suspect qualifications.

SoR, is the main source for techno-commercial planning and project execution activities for trenchless projects employing approved trenchless techniques. For achieving quality, safety, and productivity these minimum competency standards are the benchmarks. So, in association with the technical specifications, such standards also must be made available to the user, and therefore creation of this newer section. With more and more techniques under standardization such minimum standards are expected to grow further. We shall be including such standards in the subsequent editions of this book. We encourage project authorities to either use these standards to verify skills of operators or seek IndSTT Certification for operator / technician skill for such operators proposed to be deputed on their projects With so many subsurface projects under construction, this book fulfils a major need of construction industry that is pressing the stakeholders, and I welcome the stakeholders to make the best use of this book.

With so many subsurface projects under construction this book fulfils a major need of construction industry that is pressing the stakeholders, and I welcome the stakeholders to make the best use of this book.

We thank the trenchless construction industry for having their faith in this book reposed till now, and hope to have its continuance for this edition as well. We also would like to invite the stakeholders to continue providing their inputs for inclusion of new items and alterations in current coverage to suit the changing needs of the industry.

Dr. P R Swarup
Indian Society for Trenchless Technology

Table of Contents


Sl. No. Chapters
1 Common Items
Subsurface survey
Excavation of Pits
Temporary bypassing of Sewer
Pipeline Condition Assessment
Manhole Connection
Sewer Pipeline Desilting
Cable Avoidance
Tracing Buried Cable / Metallic Pipe Route
Tracing Buried Non-Metallic Pipes
Tracing Buried Manhole
Locating Sheath Fault
2 New Installation Techniques
Pipe Ramming
Horizontal Directional Drilling (for laying HDPE Pipes)
Manual Pipe Jacking
Auger Boring
Tunnel Boring
Horizontal Rock Boring
3 Rehabilitation Techniques
Slip Lining
Cured in Place Pipe
Using Hot water/ Steam Curing of resin impregneted felt 
Using UV Ray Curing of resin impregnated felt 
Sprayed Lining
4 Renewal Techniques
Pneumatic Pipe Bursting
Static Pipe Bursting
5 Registered Qualified Professionals
  5.1 Introduction
  5.2 Scope
  5.3 Eligibility criteria for individual candidates and corporate nominees
  5.4 Knowledge of trenchless techniques
  5.5 Waste disposal/Traffic management/Safety
  5.6 Restoration of pits/surface locations
  5.7 Proposed utility layout plan
  5.8 Evaluating equipment capacity & capability
  5.9 Operator's qualification
  5.10 Selection and registration
  5.11 Commercial terms & conditions
  5.12 Deployment of RQP
  5.13 Powers to issue direction
  5.14 Project supervision and monitoring
  5.15 Accidents/Road cave-ins/Damage to structures
  5.16 Certificate of completion
  5.17 RQP Code of Ethics
  5.18 RQP fee structure
6 Minimum Trenchless Equipment Compliments
7 Indian Society for Trenchless Technology Membership Directory