SOWiL Limited has extensive experience of providing consultancy services for all types of highway development works from Preliminary Planning, Feasibility Studies, Traffic Studies, Social, Economic and Environmental Assessment, Public Consultation and Inquiry Exercises, Detailed Design / Proof Check of Design, preparation of Detailed Project Reports to the Supervision of Construction as Project Management Consultant and as Independent Engineer, Quality Assurance, Technical Audit, Contract Management, Social Impact Monitoring, Environmental Management and Monitoring of mitigation measures etc and training of the staff of the client on various aspects of engineering design and Contract Management during execution of works. This work includes considerable experience in the analysis, design and assessment of a wide range of highway structures and formulation of cost effective measures for their rehabilitation and upgradation.

SOWiL Limited also has extensive experience of providing consultancy services for design/ Construction Supervision of all types of bridges, viaducts, Road Over Bridges (ROBs), Grade Separated Interchanges, Flyovers, underpasses, Pedestrian facilities etc.

Based on expertise of providing consultancy services in the field of highway construction and maintenance and hallmark of Quality being enforced on all its assignments, the Firm was tasked by the Maharashtra State Road Development Corporation (MSRDC) to draw out a Maintenance Manual and Contract Documents for the prestigious Mumbai-Pune Expressway. Further, the NHAI has appointed the Firm for performing the functions of Independent Engineer for independently reviewing, monitoring and approving all activities associated with Design, Construction and Operation and Maintenance of the 4-laning project for km 515 to km 592 section of NH-4 in the State of Karnataka from Belgaum to Maharashtra Border on BOT (Annuity) basis. SOWiL Limited has also successfully completed the assignment given to it by the Gujarat State Road Development Corporation (GSRDC) of Independent Engineer for Construction of 1032 m long Chhayapuri ROB (Bridge Length 748 km - 36 x 20 m spans + 1 x 28m span - and solid ramps of 160 m and 124 m) across Mumbai-Delhi Railway Line near GSFC Junction at Vadodra (BOT Projects). The Punjab Infrastructure Development Board (PIDB) also appointed the Firm for Quality Control of four assignments of highway development including a 446 m long major bridge on the Soan Nadi. The Firm has similarly been tasked by various Government agencies to undertake a number of Project Management Consultancy assignments involving total functions of Design, Construction Supervision, Quality Assurance and Technical Audit Services.


  Project Identification
  Pre-feasibility and Feasibility Studies
  Project Appraisal
  Project Planning and Preparation
  Traffic Surveys
  Topographical Survey

About Us

SOWiL Limited an ISO 9001:2015, formerly known as Sir Owen Williams innovestment Limited, was incorporated in India, in September 1996 with its Corporate Office in Mumbai. The Company's Head office and principal design office as well as APEC and APpave office is at Navi Mumbai; North office including business development, talent acquisition, TraccAssure, CIMMS and TIS as well as highway design and environmental studies at Noida.

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